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Journal articles on the topic 'Bolometric technique'

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Published: 2 June 2025

Last updated: 31 July 2025

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1

Giuliani, Andrea. "Search for dark matter with the bolometric technique." International Journal of Modern Physics A 29, no. 19 (2014): 1443008. http://dx.doi.org/10.1142/s0217751x14430088.

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After a concise introduction about the dark matter issue and a discussion of the problematics related to its direct detection, the bolometric technique is presented in this context, with a special focus on double-readout devices. The bolometric experiments for the search for dark matter are then described and reviewed. Their present and future roles are discussed, arguing about pros and cons of this technology.

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2

Poda, Denys, and Andrea Giuliani. "Low background techniques in bolometers for double-beta decay search." International Journal of Modern Physics A 32, no. 30 (2017): 1743012. http://dx.doi.org/10.1142/s0217751x17430126.

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Bolometers are low temperature particle detectors with high energy resolution and detection efficiency. Some types of bolometric detectors are also able to perform an efficient particle identification. A wide variety of radiopure dielectric and diamagnetic materials makes the bolometric technique favorable for applications in astroparticle physics. In particular, thanks to their superior performance, bolometers play an important role in the worldwide efforts on searches for neutrinoless double-beta decay. Such experiments strongly require an extremely low level of the backgrounds that can easi

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Mennella, A., P. Ade, A. Almela, et al. "Measuring the CMB primordial B-modes with Bolometric Interferometry." EPJ Web of Conferences 293 (2024): 00030. http://dx.doi.org/10.1051/epjconf/202429300030.

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The Q&U Bolometric Interferometer for Cosmology (QL’BIC) is the first bolometric interferometer designed to measure the primordial B-mode polarization of the Cosmic Microwave Background (CMB). Bolometric interferometry is a novel technique that combines the sensitivity of bolometric detectors with the control of systematic effects that is typical of interferometry, both key features in the quest for the faint signal of the primordial B-modes. A unique feature is the so-called “spectral imaging”, i.e., the ability to recover the sky signal in several sub-bands within the physical band durin

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Beeman, J. W., F. Bellini, P. Benetti, et al. "Current Status and Future Perspectives of the LUCIFER Experiment." Advances in High Energy Physics 2013 (2013): 1–15. http://dx.doi.org/10.1155/2013/237973.

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In the field of fundamental particle physics, the neutrino has become more and more important in the last few years, since the discovery of its mass. In particular, the ultimate nature of the neutrino (if it is a Dirac or a Majorana particle) plays a crucial role not only in neutrino physics, but also in the overall framework of fundamental particle interactions and in cosmology. The only way to disentangle its ultimate nature is to search for the neutrinoless double beta decay. The idea of LUCIFER is to combine the bolometric technique proposed for the CUORE experiment with the bolometric lig

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Arnaboldi, C., C. Brofferio, O. Cremonesi, et al. "A novel technique of particle identification with bolometric detectors." Astroparticle Physics 34, no. 11 (2011): 797–804. http://dx.doi.org/10.1016/j.astropartphys.2011.02.006.

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Grigorieva, Veronika D., Vladimir N. Shlegel, Yuri A. Borovlev, Alexey A. Ryadun, and Tatyana B. Bekker. "Bolometric molybdate crystals grown by low-thermal-gradient Czochralski technique." Journal of Crystal Growth 523 (October 2019): 125144. http://dx.doi.org/10.1016/j.jcrysgro.2019.06.030.

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Mousset, L., M. M. Gamboa Lerena, E. S. Battistelli, et al. "QUBIC II: Spectral polarimetry with bolometric interferometry." Journal of Cosmology and Astroparticle Physics 2022, no. 04 (2022): 035. http://dx.doi.org/10.1088/1475-7516/2022/04/035.

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Abstract Bolometric interferometry is a novel technique that has the ability to perform spectral imaging. A bolometric interferometer observes the sky in a wide frequency band and can reconstruct sky maps in several sub-bands within the physical band in post-processing of the data. This provides a powerful spectral method to discriminate between the cosmic microwave background (CMB) and astrophysical foregrounds. In this paper, the methodology is illustrated with examples based on the Q & U Bolometric Interferometer for Cosmology (QUBIC) which is a ground-based instrument designed to measu

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O'Sullivan, C., M. De Petris, G. Amico, et al. "QUBIC VIII: Optical design and performance." Journal of Cosmology and Astroparticle Physics 2022, no. 04 (2022): 041. http://dx.doi.org/10.1088/1475-7516/2022/04/041.

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Abstract The Q and U Bolometric Interferometer for Cosmology (QUBIC) is a ground-based experiment that aims to detect B-mode polarization anisotropies [1] in the CMB at angular scales around the ℓ ≃100 recombination peak. Systematic errors make ground-based observations of B modes at millimetre wavelengths very challenging and QUBIC mitigates these problems in a somewhat complementary way to other existing or planned experiments using the novel technique of bolometric interferometry. This technique takes advantage of the sensitivity of an imager and the systematic error control of an interfero

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Bogatskaya, Anna V., Nikolay V. Klenov, Alexander M. Popov, et al. "Multilayer Bolometric Structures for Efficient Wideband Communication Signal Reception." Nanomaterials 14, no. 2 (2024): 141. http://dx.doi.org/10.3390/nano14020141.

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It is known that the dielectric layer (resonator) located behind the conducting plate of the bolometer system can significantly increase its sensitivity near the resonance frequencies. In this paper, the possibility of receiving broadband electromagnetic signals in a multilayer bolometric meta-material made of alternating conducting (e.g., silicon semiconductor) and dielectric layers is demonstrated both experimentally and numerically. It is shown that such a multilayer structure acts as a lattice of resonators and can significantly increase the width of the frequency band of efficient electro

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10

Turner, P. J., D. M. Broun, Saeid Kamal, et al. "Bolometric technique for high-resolution broadband microwave spectroscopy of ultra-low-loss samples." Review of Scientific Instruments 75, no. 1 (2004): 124–35. http://dx.doi.org/10.1063/1.1633001.

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Sano, Ryuichi, Kiyofumi Mukai, Byron J. Peterson, Masakatsu Fukumoto, and Kazuo Hoshino. "Development of bolometric tomography technique for high-contrast radiation distribution in toroidal devices." Review of Scientific Instruments 88, no. 9 (2017): 093504. http://dx.doi.org/10.1063/1.5000951.

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Campani, A., D. Q. Adams, C. Alduino, et al. "Status and results from the CUORE experiment." International Journal of Modern Physics A 35, no. 36 (2020): 2044016. http://dx.doi.org/10.1142/s0217751x20440169.

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The Cryogenic Underground Observatory for Rare Events (CUORE) is a tonne-scale cryogenic experiment located at the Laboratori Nazionali del Gran Sasso that exploits bolometric technique to search for neutrinoless double beta decay [Formula: see text] of [Formula: see text]Te. The detector consists of a segmented array of 988 natural [Formula: see text] cubic crystals arranged in a cylindrical compact structure of 19 towers. The detector construction was completed in August 2016 and data taking started in Spring 2017. In this work, we present a brief description of the bolometric technique for

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Nandi, Sukanta, Vinod Panwar, and Abha Misra. "Metal-carbon nanotube composite for wavelength-selective bolometer with improved characteristics." Journal of Applied Physics 133, no. 4 (2023): 043104. http://dx.doi.org/10.1063/5.0129993.

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This work comprehensively discusses the utilization of a metal-multiwalled carbon nanotube (CNT) nanocomposite of gold (Au)/CNT for uncooled bolometric application synthesized by a simple rapid green synthesis technique. Enhanced light–matter interaction with the visible (532 nm) and near-infrared (1064 nm) radiations in the nanocomposite is utilized for achieving improved bolometric response at room temperature (RT, ∼300 K). A comparatively higher temperature coefficient of resistance of ∼−0.11%/K (improvement of ∼57%) was achieved in the Au/CNT nanocomposite bolometer (BM). Additionally, the

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Tribbiani, Giulio, Tiberio Truffarelli, Tommaso Zara, et al. "Exploring the operational limits of a bolometric camera for thermoelastic stress measurementes using a photonic reference camera." Acta IMEKO 13, no. 4 (2024): 1–6. https://doi.org/10.21014/actaimeko.v13i4.1759.

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Image analysis-based measurement techniques are gaining popularity thanks to their ability of measuring different kinds of mechanical fields without interfering with the measurand. Thermoelastic Stress Analysis is a full field, non-contact technique that uses IR images and the principle of thermoelasticity to measure stress distributions. The low amplitude of the temperature variations and the high frequency excitations required, make it mandatory to use fast and expensive IR imaging systems. Using systems based on micro-bolometers instead of photonic sensor, could significantly reduce the cos

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Itkis, Mikhail E., Ferenc Borondics, Aiping Yu, and Robert C. Haddon. "Thermal Conductivity Measurements of Semitransparent Single-Walled Carbon Nanotube Films by a Bolometric Technique." Nano Letters 7, no. 4 (2007): 900–904. http://dx.doi.org/10.1021/nl062689x.

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Sangiorgio, S., C. Arnaboldi, C. Brofferio, et al. "A new technique for the identification of surface contamination in low temperature bolometric experiments." Nuclear Physics B - Proceedings Supplements 221 (December 2011): 390. http://dx.doi.org/10.1016/j.nuclphysbps.2011.10.040.

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Yocum, J., D. Mayer, J. L. Ouellet, and L. Winslow. "Muon track reconstruction in a segmented bolometric array using multi-objective optimization." Journal of Instrumentation 17, no. 07 (2022): P07004. http://dx.doi.org/10.1088/1748-0221/17/07/p07004.

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Abstract Recent advances in segmented solid-state detector arrays for rare-event searches have allowed the technology to approach the ton-scale in detector mass and the scale of meters in size. Often focused around searches for neutrinoless double-beta decay or direct dark matter detection, such experiments also have the capability to search for exotic particles that leave track-like signatures across their volume. However, the segmented nature of such detector arrays often sets the spatial resolution and makes the problem of reconstructing track-like paths non-trivial. In this paper, we prese

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Peluso, Emmanuele, Michela Gelfusa, Teddy Craciunescu, et al. "Dealing with artefacts in JET iterative bolometric tomography using masks." Plasma Physics and Controlled Fusion 64, no. 4 (2022): 045013. http://dx.doi.org/10.1088/1361-6587/ac4854.

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Abstract Bolometric tomography is a widely applied technique to infer important indirect quantities in magnetically confined plasmas, such as the total radiated power. However, being an inverse and ill-posed problem, the tomographic algorithms have to be carefully steered to converge on the most appropriate solutions, and often specialists have to balance the quality of the obtained reconstructions between the core and the edge of the plasma. Given the topology of the emission and the layout of the diagnostics in practically all devices, the tomographic inversions of bolometry are often affect

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Mennella, Aniello, Peter Ade, Giorgio Amico, et al. "QUBIC: Exploring the Primordial Universe with the Q&U Bolometric Interferometer." Universe 5, no. 2 (2019): 42. http://dx.doi.org/10.3390/universe5020042.

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In this paper, we describe QUBIC, an experiment that will observe the polarized microwave sky with a novel approach, which combines the sensitivity of state-of-the-art bolometric detectors with the systematic effects control typical of interferometers. QUBIC’s unique features are the so-called “self-calibration”, a technique that allows us to clean the measured data from instrumental effects, and its spectral imaging power, i.e., the ability to separate the signal into various sub-bands within each frequency band. QUBIC will observe the sky in two main frequency bands: 150 GHz and 220 GHz. A t

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Ryadun, Alexey A., Mariana I. Rakhmanova, and Veronika D. Grigorieva. "Photoluminescence properties of perspective bolometric crystals Na2Mo2O7 and Na2W2O7 grown by low-thermal-gradient Czochralski technique." Optical Materials 99 (January 2020): 109537. http://dx.doi.org/10.1016/j.optmat.2019.109537.

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Casali, N., D. R. Artusa, F. Bellini, et al. "Scintillating bolometric technique for the neutrino-less double beta decay search: The LUCIFER/CUPID-0 experiment." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 845 (February 2017): 342–46. http://dx.doi.org/10.1016/j.nima.2016.06.069.

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McDonald, A. B. "Nuclear tests of fundamental interactions." Canadian Journal of Physics 67, no. 8 (1989): 785–91. http://dx.doi.org/10.1139/p89-136.

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Measurements of parity violation in nuclei can determine properties of the basic weak nucleon–nucleon interaction, thereby testing electroweak theory and quark models of nucleons. Experiments observing parity violation in the photodisintegration of deuterium, in the scattering of protons from hydrogen, and in the emission of circularly polarized γ rays from 18F are described. A new technique for polarizing 3He is described, and the use of polarized 3He in measurements of parity and time reversal violation is presented. Finally, new directions in γ-ray spectroscopy are illustrated by the Sudbur

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23

Manzan, E., M. Regnier, J.-Ch Hamilton, et al. "The advantage of Bolometric Interferometry for controlling Galactic foreground contamination in CMB primordial B-modes measurements." EPJ Web of Conferences 293 (2024): 00029. http://dx.doi.org/10.1051/epjconf/202429300029.

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In the quest for the faint primordial B-mode polarization of the Cosmic Microwave Background, three are the key requirements for any present or future experiment: an utmost sensitivity, excellent control over instrumental systematic effects and over Galactic foreground contamination. Bolometric Interferometry (BI) is a novel technique that matches them all by combining the sensitivity of bolometric detectors, the control of instrumental systematics from interferometry and a software-based, tunable, in-band spectral resolution due to its ability to perform band-splitting during data analysis (s

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Wang, Qin, Yu Wu, Xin Deng, et al. "Preparation and Bolometric Responses of MoS2 Nanoflowers and Multi-Walled Carbon Nanotube Composite Network." Nanomaterials 12, no. 3 (2022): 495. http://dx.doi.org/10.3390/nano12030495.

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Due to their broadband optical absorption ability and fast response times, carbon nanotube (CNT)-based materials are considered promising alternatives to the toxic compounds used in commercial infrared sensors. However, the direct use of pure CNT networks as infrared sensors for simple resistance read-outs results in low sensitivity values. In this work, MoS2 nanoflowers are composited with CNT networks via a facile hydrothermal process to increase the bolometric performance. The thermal diffusivity (α) against temperature (T) is measured using the transient electro-thermal (TET) technique in

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Polichetti, Massimiliano, Yura Bugoslavsky, and David Caplin. "Measurement of AC losses in superconducting tapes subjected to both AC current and magnetic field using a bolometric technique." Physica C: Superconductivity 388-389 (May 2003): 765–66. http://dx.doi.org/10.1016/s0921-4534(02)02637-0.

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Rodríguez, Ó., N. Meza, J. Pineda-García, and M. Ramirez. "The iron yield of normal Type II supernovae." Monthly Notices of the Royal Astronomical Society 505, no. 2 (2021): 1742–74. http://dx.doi.org/10.1093/mnras/stab1335.

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ABSTRACT We present 56Ni mass estimates for 110 normal Type II supernovae (SNe II), computed here from their luminosity in the radioactive tail. This sample consists of SNe from the literature, with at least three photometric measurements in a single optical band within 95–320 d since explosion. To convert apparent magnitudes to bolometric ones, we compute bolometric corrections (BCs) using 15 SNe in our sample having optical and near-IR photometry, along with three sets of SN II atmosphere models to account for the unobserved flux. We find that the I- and i-bands are best suited to estimate l

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Zaninetti, L. "Semi-analytical formulas for the Hertzsprung-Russell diagram." Serbian Astronomical Journal, no. 177 (2008): 73–85. http://dx.doi.org/10.2298/saj0877073z.

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The absolute visual magnitude as function of the observed color (B-V), also named Hertzsprung-Russell diagram, can be described through five equations; that when calibrated stars are available means eight constants. The developed framework allows to deduce the remaining physical parameters, mass, radius and luminosity. This new technique is applied to the first 10 pc, the first 50 pc, the Hyades and to the determination of the distance of a cluster. The case of the white dwarfs is analyzed assuming the absence of calibrated data: our equation produces a smaller ?2 with respect to the standard

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Serjeant, Stephen. "Multi-wavelength probes of distant lensed galaxies." Proceedings of the International Astronomical Union 7, S284 (2011): 475–81. http://dx.doi.org/10.1017/s1743921312009660.

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AbstractI summarise recent results on multi-wavelength properties of distant lensed galaxies, with a particular focus on Herschel. Submm surveys have already resulted in a breakthrough discovery of an extremely efficient selection technique for strong gravitational lenses. Benefitting from the gravitational magnification boost, blind mm-wave redshifts have been demonstrated on IRAM, SMA and GBT, and follow-up emission line detections have been made of water, [Oiii], [Cii] and other species, revealing the PDR/XDR/CRDR conditions. I also discuss HST imaging of submm lenses, lensed galaxy reconst

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Yadav, Rahul, Florian Ludwig, Fahd Rushd Faridi, et al. "State-of-the-Art Room Temperature Operable Zero-Bias Schottky Diode-Based Terahertz Detector Up to 5.56 THz." Sensors 23, no. 7 (2023): 3469. http://dx.doi.org/10.3390/s23073469.

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We present the characterization of a Zero-bias Schottky diode-based Terahertz (THz) detector up to 5.56 THz. The detector was operated with both a table-top system until 1.2 THz and at a Free-Electron Laser (FEL) facility at singular frequencies from 1.9 to 5.56 THz. We used two measurement techniques in order to discriminate the sub-ns-scale (via a 20 GHz oscilloscope) and the ms-scale (using the lock-in technique) responsivity. While the lock-in measurements basically contain all rectification effects, the sub-ns-scale detection with the oscilloscope is not sensitive to slow bolometric effec

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Sheglov, D. V., M. A. Dem’yanenko, O. I. Semenova, et al. "DEVELOPMENT OF A BROADBAND ELECTROMAGNETIC RADIATION ABSORBER BASED ON MULTIWALL CARBON NANOTUBES AND ITS APPLICATION IN BOLOMETRIC RECEIVERS." RADIO COMMUNICATION TECHNOLOGY, no. 51 (December 30, 2021): 75–88. http://dx.doi.org/10.33286/2075-8693-2021-51-75-88.

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This work is devoted to the development of a technique for obtaining an array of multi-walled vertically aligned carbon nanotubes (VACNT) with a thickness of up to 120 μm on Si/Al2O3/Fe substrates and to the study of their absorbing properties in the THz spectral region, as well as to the assessment of their prospects as a broadband THz radiation absorber based on calculations of the spectral dependence of absorption coefficient for traditional and inverted-type bolometric devices. It is shown that the absorption of the VACNT array transferred onto the Revalpha polymer substrate reaches 70–80%

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Tank, Tejas M., Ashish Bodhaye, Ya M. Mukovskii, and Sankar P. Sanyal. "Transport, Magnetic, and Thermal Properties of La0.7Ca0.24Sr0.06MnO3Single Crystal." Advances in Condensed Matter Physics 2013 (2013): 1–4. http://dx.doi.org/10.1155/2013/305308.

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We report the transport, magnetic, and thermal properties of La0.7Ca0.24Sr0.06MnO3single crystal. It was prepared using floating zone technique used under oxygen pressure of 1 bar with a typical growth rate of 1 mm/hr. The resistivity data shows the metal to insulator transition (M-I) occuring atTMI=290 K along thec-axis and atTMI=280 K along theab-plane. It is observed that theTMIis higher along thec-axis as compared to that in theab-plane, thus indicating that more favorable hoping of electrons is along thec-axis. From bolometric application point of view, the temperature coefficient of resi

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Mainieri, Vincenzo, and Angela Bongiorno. "Obscured quasars: the link between star-formation and black hole activity." Proceedings of the International Astronomical Union 8, S292 (2012): 181–83. http://dx.doi.org/10.1017/s1743921313000999.

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AbstractWe explore the connection between black hole growth at the center of obscured quasars selected from the XMM-COSMOS survey and the physical properties of their host galaxies. We study a bolometric regime (<Lbol> ∼ 8 × 1045 erg s−1) where several theoretical models invoke major galaxy mergers as the main fueling channel for black hole accretion. To derive robust estimates of the host galaxy properties, we use an SED fitting technique to distinguish the AGN and host galaxy emission. We find that at z ∼ 1, ≈ 62% of Type-2 QSOs hosts are actively forming stars and that their rates are

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Spinoglio, L., та M. A. Malkan. "A 12μm Flux Limited Sample of Galaxies: Preliminary Results on the IR Luminosity Function". Symposium - International Astronomical Union 134 (1989): 55–56. http://dx.doi.org/10.1017/s0074180900140367.

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An all-sky 12μm flux-limited sample of 392 galaxies has been selected from the IRAS Point Source Catalog. More than 20% of the sample harbor active nuclei (with Seyfert 1 or 2 or LINER emission-line spectra). Thus one byproduct of this work is the definition of a large complete sample of bright active galaxies, with roughly equal percentages of Sy 1's, Sy 2's and LINERs. Since we now have virtually all (93%) the redshifts for the sample galaxies, the far-infrared luminosity functions of all classes of galaxies have been derived using IRAS coadded data. Since our luminosity functions for Sy 1 a

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Chani, Muhammad Tariq Saeed, Khasan S. Karimov, Tahseen Kamal, Noshin Fatima, Mohammed M. Rahman, and Abdullah M. Asiri. "Shockproof Deformable Infrared Radiation Sensors Based on a Polymeric Rubber and Organic Semiconductor H2Pc-CNT Composite." Polymers 15, no. 12 (2023): 2691. http://dx.doi.org/10.3390/polym15122691.

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Polymeric rubber and organic semiconductor H2Pc-CNT-composite-based surface- and sandwich-type shockproof deformable infrared radiation (IR) sensors were fabricated using a rubbing-in technique. CNT and CNT-H2Pc (30:70 wt.%) composite layers were deposited on a polymeric rubber substrate as electrodes and active layers, respectively. Under the effect of IR irradiation (0 to 3700 W/m2), the resistance and the impedance of the surface-type sensors decreased up to 1.49 and 1.36 times, respectively. In the same conditions, the resistance and the impedance of the sandwich-type sensors decreased up

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Beeman, Jeff W., Fedor A. Danevich, Volodimir Yakovych Degoda, et al. "An Improved ZnMoO4 Scintillating Bolometer for the Search for Neutrinoless Double Beta Decay of 100Mo." Journal of Low Temperature Physics 167, no. 5-6 (2012): 1021–28. https://doi.org/10.1007/s10909-012-0573-z.

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We present a prototype scintillating bolometer for the search for neutrino-less double β decay of 100Mo, consisting of a single ≈5 g ZnMoO4 crystal operated aboveground in the 20–30 mK temperature range. The scintillation light is read out by two thin Ge bolometers. The phonon signals are collected by NTD Ge thermistors. The ZnMoO4 crystal was grown with an advanced method (low-thermal-gradient Czochralski technique) and after purification of molybdenum. The results are very encouraging: the intrinsic energy resolution of the heat channel is ≈800 eV FWHM, the α/β rejection factor (crucial for

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Magalhães, Regina, Luis Costa, Sonia Martin-Lopez, Miguel Gonzalez-Herraez, Alejandro F. Braña, and Hugo F. Martins. "Long-Range Distributed Solar Irradiance Sensing Using Optical Fibers." Sensors 20, no. 3 (2020): 908. http://dx.doi.org/10.3390/s20030908.

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Until recently, the amount of solar irradiance reaching the Earth surface was considered to be a steady value over the years. However, there is increasing observational evidence showing that this quantity undergoes substantial variations over time, which need to be addressed in different scenarios ranging from climate change to solar energy applications. With the growing interest in developing solar energy technology with enhanced efficiency and optimized management, the monitoring of solar irradiance at the ground level is now considered to be a fundamental input in the pursuit of that goal.

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Eastman, Jason D., Hannah Diamond-Lowe, and Jamie Tayar. "Beating Stellar Systematic Error Floors Using Transit-based Densities." Astronomical Journal 166, no. 3 (2023): 132. http://dx.doi.org/10.3847/1538-3881/aceda2.

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Abstract It has long been understood that the light curve of a transiting planet constrains the density of its host star. That fact is routinely used to improve measurements of the stellar surface gravity and has been argued to be an independent check on the stellar mass. Here we show how the stellar density can also dramatically improve the precision of the radius and effective temperature of the star. This additional constraint is especially significant when we properly account for the 4.2% radius and 2.0% temperature systematic errors inherited from photometric zero-points, model atmosphere

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Ahmad Beig, Mirza Tanweer, Mukesh Kumar, Yogesh Sharma, and Bhoopesh Kumar Sharma. "A Terahertz/Millimeter-Wave Based Detection and Imaging System Using Antenna-Coupled Microbolometer." Journal of Physics: Conference Series 2335, no. 1 (2022): 012005. http://dx.doi.org/10.1088/1742-6596/2335/1/012005.

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Abstract The Terahertz (THz) region lie in the range 0.1 THz to 10 THz. It can pass easily through fog, smoke, thin walls, and clothes and be focused as a light wave to create images of objects. Terahertz waves are applied in imaging technology, such as safety, navigation, and non-destructive evaluation (NDE) technique used for materials analysis. A microbolometer is a micromachined device to measure the inherent power of incident electromagnetic radiation. The resistance of bolometer is temperature-dependent, and it varies with changes in the temperature of the exposed surface. Bolometric det

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Hatfull, Roger W. M., and Natalia Ivanova. "Simulating a Stellar Binary Merger. II. Obtaining a Light Curve*." Astrophysical Journal 982, no. 2 (2025): 83. https://doi.org/10.3847/1538-4357/ada6b8.

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Abstract Luminous red novae are enigmatic transient events distinguished by a rapid rise in luminosity, a plateau in luminosity, and spectra, which become redder with time. The best-observed system before, during, and after the outburst is V1309 Sco. We model a candidate V1309 Sco progenitor binary configuration (1.52 + 0.16 M ⊙) using the smoothed particle hydrodynamics (SPH) code StarSmasher with a modified energy equation that implements flux-limited emission-diffusion radiative transport in a Lagrangian case. We developed an imaging technique allowing us to capture the flux an observer wou

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Eldridge, J. E., and G. S. Bates. "The far-infrared conductivity of (TMTSF)2AsF6 and (TMTSF)2SbF6 in their spin-density-wave state, measured by a bolometric technique and compared with theory." Synthetic Metals 19, no. 1-3 (1987): 303–8. http://dx.doi.org/10.1016/0379-6779(87)90371-7.

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Xie, Yanxia, and Luis C. Ho. "The Ionization and Destruction of Polycyclic Aromatic Hydrocarbons in Powerful Quasars." Astrophysical Journal 925, no. 2 (2022): 218. http://dx.doi.org/10.3847/1538-4357/ac32e2.

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Abstract We reanalyze the mid-infrared (5–40 μm) Spitzer spectra of 86 low-redshift (z < 0.5) Palomar–Green quasars to investigate the nature of polycyclic aromatic hydrocarbon (PAH) emission and its utility as a star formation rate (SFR) indicator for the host galaxies of luminous active galactic nuclei (AGNs). We decompose the spectra with our recently developed template-fitting technique to measure PAH fluxes and upper limits, which we interpret using mock spectra that simulate the effects of AGN dilution. While luminous quasars can severely dilute and affect the detectability of emissio

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Revalski, Mitchell, D. Michael Crenshaw, Garrett E. Polack, et al. "Quantifying Feedback from Narrow Line Region Outflows in Nearby Active Galaxies. V. The Expanded Sample." Astrophysical Journal 984, no. 1 (2025): 32. https://doi.org/10.3847/1538-4357/adc131.

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Abstract We present spatially resolved measurements of the ionized gas masses and mass outflow rates for six low-redshift (z ≤ 0.02) active galaxies. In this study, we expand our sample to galaxies with more complex gas kinematics modeled as outflows along a galactic disk that is ionized by the active galactic nucleus (AGN) bicone. We use Hubble Space Telescope Space Telescope Imaging Spectrograph spectroscopy, Wide Field Camera 3 narrow-band imaging, and the photoionization modeling technique that we developed in M. Revalski et al. (Paper IV in this series) to calculate ionized gas masses usi

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Gallinger, Cailin L., Jean-Pierre Williams, Catherine D. Neish, et al. "Thermophysical Diversity of Young Lunar Crater Ejecta Revealed with LRO Diviner Observations." Planetary Science Journal 5, no. 11 (2024): 261. http://dx.doi.org/10.3847/psj/ad84e3.

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Abstract Young (<1 Ga) craters on the Moon are known to host diverse mixtures of ejecta with varying spectral and physical properties. In this work, we examine 13 yr of bolometric surface temperature data from the Diviner Lunar Radiometer on board the Lunar Reconnaissance Orbiter over the ejecta blankets of 10 lunar craters of varying sizes (D = 5–43 km) and ages (<10 to ∼200 Ma) to study the spatial variation in their thermophysical characteristics. We find that a one-dimensional thermal model with two free parameters—the bottom-layer bulk density, ρ d , and the transition height betwee

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Bluck, Asa F. L., Joanna M. Piotrowska, and Roberto Maiolino. "The Fundamental Signature of Star Formation Quenching from AGN Feedback: A Critical Dependence of Quiescence on Supermassive Black Hole Mass, Not Accretion Rate." Astrophysical Journal 944, no. 1 (2023): 108. http://dx.doi.org/10.3847/1538-4357/acac7c.

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Abstract We identify the intrinsic dependence of star formation quenching on a variety of galactic and environmental parameters, utilizing a machine-learning approach with Random Forest classification. We have previously demonstrated the power of this technique to isolate causality, not mere correlation, in complex astronomical data. First, we analyze three cosmological hydrodynamical simulations (Eagle, Illustris, and IllustrisTNG), selecting snapshots spanning the bulk of cosmic history from comic noon (z ∼ 2) to the present epoch, with stellar masses in the range 9 < log ( M * / M ⊙ ) &l

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Belladitta, S., A. Caccianiga, A. Diana, et al. "Central engine of the highest redshift blazar." Astronomy & Astrophysics 660 (April 2022): A74. http://dx.doi.org/10.1051/0004-6361/202142335.

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We present the results of a new LUCI/Large Binocular Telescope near-infrared (NIR) spectroscopic observation of PSO J030947.49+271757.31 (hereafter PSO J0309+27), the highest redshift blazar known to date (z ∼ 6.1). From the CIV λ1549 broad emission line, we found that PSO J0309+27 is powered by a 1.45−0.85+1.89 × 109 M⊙ supermassive black hole (SMBH) with a bolometric luminosity of ∼8 × 1046 erg s−1 and an Eddington ratio equal to 0.44−0.35+0.78. We also obtained new photometric observations with the Telescopio Nazionale Galileo in J and K bands to better constrain the NIR spectral energy dis

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Khalife, Hawraa. "BINGO: Background reduction techniques for 0ν2β bolometric experiments". EPJ Web of Conferences 290 (2023): 04002. http://dx.doi.org/10.1051/epjconf/202329004002.

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BINGO is a project dedicated to explore new methods for background reduction in experiments searching for 0ν2β decay. It is based on bolometers, one of the most promising techniques to search for 0ν2β. CUORE and CUPID-Mo/0 are the main bolometric experiments that have illustrated the most relevant limiting factors on sensitivity the bolometers are facing. Surface αs are the main source of background in CUORE, and this contribution has been mitigated in CUPID-Mo/0 using dual heat-light channels, i.e., a main absorber embedding the 2β decay isotope facing a light detector. In this case, surface

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Sisti, M. "MARE: 187Re beta spectrum analysis with bolometric techniques." Nuclear Physics B - Proceedings Supplements 168 (June 2007): 48–50. http://dx.doi.org/10.1016/j.nuclphysbps.2007.02.004.

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Sánchez-Fernández, C., J. J. E. Kajava, J. Poutanen, E. Kuulkers, and V. F. Suleimanov. "Burst-induced coronal cooling in GS 1826–24." Astronomy & Astrophysics 634 (February 2020): A58. http://dx.doi.org/10.1051/0004-6361/201936599.

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Type I X-ray bursts in GS 1826–24, and in several other systems, may induce cooling of the hot inner accretion flow that surrounds the bursting neutron star. Given that GS 1826–24 remained persistently in the hard state over the period 2003–2008 and presented regular bursting properties, we stacked the spectra of the X-ray bursts detected by INTEGRAL (JEM-X and ISGRI) and XMM-Newton (RGS) during that period to study the effect of the burst photons on the properties of the Comptonizing medium. The extended energy range provided by these instruments allows the simultaneous observation of the bur

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Ergon, M., C. Fransson, A. Jerkstrand, C. Kozma, M. Kromer, and K. Spricer. "Monte-Carlo methods for NLTE spectral synthesis of supernovae." Astronomy & Astrophysics 620 (December 2018): A156. http://dx.doi.org/10.1051/0004-6361/201833043.

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We present JEKYLL, a new code for modelling of supernova (SN) spectra and lightcurves based on Monte-Carlo (MC) techniques for the radiative transfer. The code assumes spherical symmetry, homologous expansion and steady state for the matter, but is otherwise capable of solving the time-dependent radiative transfer problem in non-local-thermodynamic-equilibrium (NLTE). The method used was introduced in a series of papers by Lucy, but the full time-dependent NLTE capabilities of it have never been tested. Here, we have extended the method to include non-thermal excitation and ionization as well

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Circosta, C., C. Vignali, R. Gilli, et al. "X-ray emission of z > 2.5 active galactic nuclei can be obscured by their host galaxies." Astronomy & Astrophysics 623 (March 2019): A172. http://dx.doi.org/10.1051/0004-6361/201834426.

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We present a multiwavelength study of seven active galactic nuclei (AGN) at spectroscopic redshift >2.5 in the 7 Ms Chandra Deep Field South that were selected for their good far-infrared (FIR) and submillimeter (submm) detections. Our aim is to investigate the possibility that the obscuration observed in the X-rays can be produced by the interstellar medium (ISM) of the host galaxy. Based on the 7 Ms Chandra spectra, we measured obscuring column densities NH, X in excess of 7 × 1022 cm−2 and intrinsic X-ray luminosities LX > 1044 erg s−1 for our targets, as well as equivalent widths for

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