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Journal articles on the topic 'Sensitivité radio'

Author: Grafiati

Published: 4 June 2021

Last updated: 9 February 2022

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1

Shoji, Eiichi. "Development and Performance of a Battery-Free Disaster Prevention Radio “HOOPRA” Using the Energy Harvested from Radio Waves." Journal of Disaster Research 11, no. 3 (2016): 593–98. http://dx.doi.org/10.20965/jdr.2016.p0593.

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A battery-free radio receiver, HOOPRA (<span class=”underline”>hoop</span> type <span class=”underline”>ra</span>dio), is proposed for acquiring information using middle wave AM radio broadcasting during unexpected power failures or disasters, with emphasis on wide coverage, immediate information acquisition, and energy saving. The HOOPRA utilizes middle waves for energy harvesting. As this radio is intended for use during disasters, the protection methods, receiving performance, and the applications of energy harvesting are reported in this paper. The HOOPRA is ring-sh

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2

Moorcroft, D. R. "An examination of radio-auroral aspect sensitivity." Canadian Journal of Physics 63, no. 7 (1985): 1005–12. http://dx.doi.org/10.1139/p85-164.

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An attempt has been made to account for the experimental observations of scattering at angles away from perpendicularity to the earth's magnetic field (aspect sensitivity). First, it was necessary to develop a scattering model appropriate for the plasma waves generally assumed to be responsible for the scattering, consisting of an assembly of irregularities, each one a wave with a Gaussoidal envelope. Then, effects were included for off-perpendicular propagation of plasma waves, the perturbation of the magnetic field direction owing to the presence of auroral currents, and refraction of the ra

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3

Abolfath, Ramin M. "Optical Control of DNA Base Radio Sensitivity." Journal of Physical Chemistry B 113, no. 19 (2009): 6938–41. http://dx.doi.org/10.1021/jp901425p.

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4

Wijaya, David Andi, Melva Louisa, Heri Wibowo, et al. "The future potential of Annona muricata L. extract and its bioactive compounds as radiation sensitizing agent: proposed mechanisms based on a systematic review." Journal of Herbmed Pharmacology 10, no. 2 (2021): 166–78. http://dx.doi.org/10.34172/jhp.2021.18.

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Despite technological advances in cancer treatment, especially in radiotherapy, many efforts are being made in improving cancer cell radio-sensitivity to increase therapeutic ratio and overcome cancer cell radio-resistance. In the present review, we evaluated the anticancer mechanism of Annona muricata L. (AM) leaves extract and its bioactive compounds such as annonaceous acetogenins, annomuricin, annonacin, or curcumin; and further correlated them with the potential of the mechanism to increase or to reduce cancer cells radio-sensitivity based on literature investigation. We see that AM has a

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5

Cohen, R. J. "Radio Astronomy and the Radio Regulations." Symposium - International Astronomical Union 196 (2001): 220–28. http://dx.doi.org/10.1017/s0074180900164137.

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This article gives a brief introduction to the status of radio astronomy within the International Telecommunication Union (ITU), the body which coordinates global telecommunications. Radio astronomy entered the ITU arena in 1959 as a relative latecomer. By its nature, radio astronomy does not fit into the ITU system very well: regulators are hoping to facilitate commercial development of the radio spectrum, whereas astronomers are hoping to retain quiet frequency bands through which to study the Universe at ever higher sensitivity. Nevertheless there are major long-term goals which radio astro

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6

Küreç Nehbit, Pakize, Robert Heinkelmann, Harald Schuh, et al. "Evaluation of VLBI Observations with Sensitivity and Robustness Analyses." Mathematics 8, no. 6 (2020): 939. http://dx.doi.org/10.3390/math8060939.

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Very Long Baseline Interferometry (VLBI) plays an indispensable role in the realization of global terrestrial and celestial reference frames and in the determination of the full set of the Earth Orientation Parameters (EOP). The main goal of this research is to assess the quality of the VLBI observations based on the sensitivity and robustness criteria. Sensitivity is defined as the minimum displacement value that can be detected in coordinate unknowns. Robustness describes the deformation strength induced by the maximum undetectable errors with the internal reliability analysis. The location

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7

Takahashi, Kenji, Satoru Monzen, and Ikuo Kashiwakura. "Tie-2-Expression Controls the Radio-Sensitivity of Hematopoietic Stem/Progenitor Cells." Blood 110, no. 11 (2007): 4034. http://dx.doi.org/10.1182/blood.v110.11.4034.4034.

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Abstract Tyrosine kinase with immunoglobulin and epidermal growth factor homology domains 2 (Tie-2) and its ligand, angiopoietin-1 (Ang-1) play an important role in the remodeling and maturation the vessels. However, Tie-2 expressed in hematopoietic stem cells has been reported to interact with Ang-1 on stromal osteoblasts in the bone marrow niche. This interaction leads to tight adhesion of hematopoietic stem cells to stromal cells, resulting in the maintenance of long-term repopulating activity of hematopoietic stem cells. Although the high radio-sensitivity of hematopoietic stem/progenitor

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8

Seppenwoolde, Yvette, Katrien De Jaeger, Liestbeth J. Boersma, JoséS A. Belderbos, and Joos V. Lebesque. "O-291 Radio-sensitivity of lung: regional differences." Lung Cancer 41 (August 2003): S85. http://dx.doi.org/10.1016/s0169-5002(03)91949-0.

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9

Stausbøl-Grøn, B., S. M. Bentzen, J. Johansen, and J. Overgaard. "Fibroblast contamination in assays of tumour radio-sensitivity." European Journal of Cancer 33 (September 1997): S25. http://dx.doi.org/10.1016/s0959-8049(97)84483-8.

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10

Sugimoto, Masahiro, Satoru Iguchi, Junji Inatani, Yutaro Sekimoto, and Shin’ichiro Asayama. "Sensitivity Analysis of Optical Systems in Radio Telescopes." Publications of the Astronomical Society of Japan 62, no. 1 (2010): 39–50. http://dx.doi.org/10.1093/pasj/62.1.39.

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11

Wang, Haiyang, Xiaoqin Liu, Rui Xiong, and Huan Zou. "Adjustable cancellation type high sensitivity radio frequency sensor." Measurement 168 (January 2021): 108337. http://dx.doi.org/10.1016/j.measurement.2020.108337.

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12

Nakagawa, N., K. Arai, K. Kuroda, and the TAMA Collaboration. "Influence of radio frequency harmonics to TAMA300 sensitivity." Journal of Physics: Conference Series 32 (March 2, 2006): 99–104. http://dx.doi.org/10.1088/1742-6596/32/1/016.

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13

Warnick, Karl F., Rob Maaskant, Marianna V. Ivashina, David Bruce Davidson, and Brian D. Jeffs. "High-Sensitivity Phased Array Receivers for Radio Astronomy." Proceedings of the IEEE 104, no. 3 (2016): 607–22. http://dx.doi.org/10.1109/jproc.2015.2491886.

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14

Korotkov, Alexander N., and Mikko A. Paalanen. "Charge sensitivity of radio frequency single-electron transistor." Applied Physics Letters 74, no. 26 (1999): 4052–54. http://dx.doi.org/10.1063/1.123258.

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15

Hinrikus, H., M. Bachmann, J. Lass, R. Tomson, and V. Tuulik. "Individual Sensitivity to Low-level Radio-frequency Exposure." Epidemiology 17, Suppl (2006): S437—S438. http://dx.doi.org/10.1097/00001648-200611001-01173.

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16

Lu, Chao, and Wafik S. El-Deiry. "Targeting p53 for enhanced radio- and chemo-sensitivity." Apoptosis 14, no. 4 (2009): 597–606. http://dx.doi.org/10.1007/s10495-009-0330-1.

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17

Zayats, Р. V., and I. Y. Malevich. "Increasing the noise immunity of radio receiving paths with automatic sensitivity control." Doklady BGUIR 19, no. 2 (2021): 74–82. http://dx.doi.org/10.35596/1729-7648-2021-19-2-74-82.

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The relevance of the study of automatic sensitivity control systems (ASC) is determined by their demand for the creation and modernization of radio receiving paths (RRP) with increased noise immunity for radar systems, radio navigation and radio communication. The article analyzes typical attenuating ASCs, which are traditionally widely used to match the dynamic range (DR) of the RRP with the DR of a group radio signal, determined by the current state of the electromagnetic environment at the receiving system location. The fundamental possibility of increasing the noise immunity of RRPs with a

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18

Cohen, R. J. "Interference Problems and Radio Astronomy in the UK." International Astronomical Union Colloquium 112 (1991): 267–72. http://dx.doi.org/10.1017/s0252921100004097.

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ABSTRACTThe radio regulations often require frequency bands to be shared between radio astronomy and services which transmit. This poses severe problems in a small island, given the sensitivity of radio astronomy receivers. The survival of radio astronomy in these circumstances depends on wide awareness of the problems. Some of the current sharing problems in the UK are discussed.

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19

Parent, E., V. M. Kaspi, S. M. Ransom, C. Patel, and M. Krasteva. "The implementation of a Fast-Folding Algorithm in the PALFA survey." Proceedings of the International Astronomical Union 13, S337 (2017): 388–89. http://dx.doi.org/10.1017/s1743921317008638.

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AbstractThe PALFA survey, the most sensitive blind search for radio pulsars, has now discovered 180 pulsars in the Galactic Plane, the vast of which have periods shorter than 2 seconds. One reason that pulsar surveys may miss long-period radio pulsars is the strong effect of red noise at low modulation frequencies. It is possible to address this reduction in sensitivity by using a Fast-Folding Algorithm (FFA). We have adapted this algorithm for radio pulsar searching and applied it to PALFA observations. A sensitivity analysis of the algorithm has been conducted using synthetic pulsar signals

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20

Vershinina, L. P., and M. I. Vershinin. "SENSITIVITY ANALYSIS IN MODELS OF TECHNOLOGICAL PROCESSES CONTROL." Issues of radio electronics 1, no. 7 (2019): 117–21. http://dx.doi.org/10.21778/2218-5453-2019-7-117-121.

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Features of technology of modern production of radio-electronic means and requirements to models of management of technological processes according to features of production are defined. The role of sensitivity analysis in the development of control models is shown. Traditionally applied sensitivity indices and methods of their estimation are considered. The limitations of their application due to the large range of products, the variability of the production technology of radio-electronic means, the non-linearity of the dynamics of technological processes and the lack of statistical data are

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21

Stappers, B. W., M. Caleb, and L. N. Driessen. "Fast Radio Transients: From Pulsars to Fast Radio Bursts." Proceedings of the International Astronomical Union 14, S339 (2017): 27–32. http://dx.doi.org/10.1017/s1743921318002156.

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AbstractThe radio sky is full of transients, their time-scales ranging from nanoseconds to decades. Recent developments in technology sensitivity and computing capabilities have opened up the short end of that range, and are revealing a plethora of new phenomenologies. Studies of radio transients were previously restricted to analyses of archived data, but are now including real-time analyses. We focus here on Fast Radio Bursts, discuss and compare the properties of the population, and describe what is to date the only known repeating Fast Radio Burst and its host galaxy. We also review what w

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22

Montebugnoli, S., M. Cecchi, C. Bortolotti, M. Roma, and S. Mariotti. "RFI Sentinel 2." Symposium - International Astronomical Union 196 (2001): 301–6. http://dx.doi.org/10.1017/s0074180900164265.

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Nowadays we have a massively increasing use of radio techniques in a wide variety of application fields. Meanwhile state-of-the-art receiver technology dramatically increases the sensitivity of modern radio telescopes. This situation produces a worrying vulnerability of ground-based radio telescopes to Radio Frequency Interference (RFI). In order to monitor the RFI scenario within the frequency bands reserved for radio astronomy activities, a monitoring system, based on a quite new approach, has been developed and is presented here.

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23

Heidmann, J. "SETI from the Moon: Avoiding Radio Pollution for Future Radio-Astronomy." Highlights of Astronomy 11, no. 2 (1998): 996–99. http://dx.doi.org/10.1017/s1539299600019419.

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AbstractBecause of the ever increasing human-made radio frequency interference (RFI), we propose to IAU a Resolution for protecting the well singled out lunar farside 100 km diameter SAHA crater from any future RFI for the scientific benefit of the coming decades high-sensitivity radioastronomy at large. Immediate and pragmatic action is strongly recommended. Our strategy, different from the ones of a recent ITU Recommendation, could increase our bargaining possibilities.

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24

Kellermann, K. I. "New Radio Telescopes." Highlights of Astronomy 7 (1986): 879–88. http://dx.doi.org/10.1017/s1539299600007413.

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AbstractNearly all of the exciting discoveries in radio astronomy have come from new instruments or techniques which have provided new frequencies, high sensitivity, higher spatial or time resolution, or improved image quality. Since the last General Assembly a number of major new radio telescopes have been completed while construction of others have only just begun. At the same time telescopes of the more distant future are still in the conceptual stage. This paper summarizes a full-day meeting of Commission 40 on recently completed radio telescopes, new radio telescopes now under constructio

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25

Bdiri, Sadok, Faouzi Derbel, and Olfa Kanoun. "An 868 MHz 7.5 µW wake-up receiver with −60 dBm sensitivity." Journal of Sensors and Sensor Systems 5, no. 2 (2016): 433–46. http://dx.doi.org/10.5194/jsss-5-433-2016.

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Abstract. In wireless sensor networks (WSNs), batteries are unlikely to be replaced or recharged once they get depleted, because of costs and feasibility. In a typical application, sensor nodes should be accessible and able to respond within a defined period of time, especially in real-time applications. However, the idle listening of the radio wastes most of the energy since the radio transceiver is constantly active. On the other hand, putting it into sleep state disconnects the node from the network. To cope with such a challenge, an ultra-low-power radio receiver referred to as a wake-up r

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26

Cohen, E. "SP-013: How do we Predict Chemo-Radio Sensitivity?" Radiotherapy and Oncology 106 (February 2013): S4. http://dx.doi.org/10.1016/s0167-8140(15)34632-6.

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27

Anthun, Olav. "EXPERIMENTAL INVESTIGATION ON THE RADIO-SENSITIVITY OF THE HYPOPHYSIS." Acta Pathologica Microbiologica Scandinavica 22, no. 5 (2009): 451–61. http://dx.doi.org/10.1111/j.1699-0463.1945.tb04080.x.

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28

Kneisel, P. "Radio‐frequency superconductivity technology: Its sensitivity to surface conditions." Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films 11, no. 4 (1993): 1575–83. http://dx.doi.org/10.1116/1.578507.

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29

Kim, Dong Wook, Jiwon Sung, Jaeman Son, et al. "Sensitivity of radio-photoluminescence glass dosimeters to accumulated doses." PLOS ONE 15, no. 12 (2020): e0234829. http://dx.doi.org/10.1371/journal.pone.0234829.

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Background This study investigated the effect of accumulated doses on radio-photoluminescence glass dosimeters (RPLGDs) from measurements involving mega-voltage photons. Methods Forty-five commercially available RPLGDs were irradiated to estimate their dose responses. Photon beams of 6, 10, and 15 MV were irradiated onto the RPLGDs inside a phantom, which were divided into five groups with different doses and energies. Groups 1 and 2 were irradiated at 1, 5, 10, 50, and 100 Gy in a sequential manner; Group 3 was irradiated 10 times with a dose of 10 Gy; and Groups 4 and 5 followed the same met

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30

Lieu, Richard, T. W. B. Kibble, and Lingze Duan. "A METHOD TO IMPROVE THE SENSITIVITY OF RADIO TELESCOPES." Astrophysical Journal 798, no. 2 (2014): 67. http://dx.doi.org/10.1088/0004-637x/798/2/67.

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31

Ellingson, Steven W. "Sensitivity of Antenna Arrays for Long-Wavelength Radio Astronomy." IEEE Transactions on Antennas and Propagation 59, no. 6 (2011): 1855–63. http://dx.doi.org/10.1109/tap.2011.2122230.

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32

Loy, N. N., N. I. Sanzharova, and S. N. Gulina. "EFFECT OF IONIZING RADIATION ON RADIO SENSITIVITY Oryzaephilus surinamensis." Rossiiskaia selskokhoziaistvennaia nauka, no. 1 (2020): 25–28. http://dx.doi.org/10.31857/s2500-2627-2020-1-25-28.

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33

Chen, Zhanfang, Yue-Lin Sming Tsai, and Qiang Yuan. "Sensitivity of SKA to dark matter induced radio emission." Journal of Cosmology and Astroparticle Physics 2021, no. 09 (2021): 025. http://dx.doi.org/10.1088/1475-7516/2021/09/025.

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34

Konovalenko, O. O., V. V. Zakharenko, L. M. Lytvynenko, et al. "THE FOUNDER OF THE DECAMETER RADIO ASTRONOMY IN UKRAINE ACADEMICIAN OF NAS OF UKRAINE SEMEN YAKOVYCH BRAUDE IS 110 YEARS OLD: HISTORY OF CREATION AND DEVELOPMENT OF THE NATIONAL EXPERIMENTAL BASE FOR THE LAST HALF CENTURY." Radio physics and radio astronomy 26, no. 1 (2021): 5–73. http://dx.doi.org/10.15407/rpra26.01.005.

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Purpose: A historical review of the experimental baselopment of low-frequency radio astronomy in Ukraine, its foundation half a century ago by an outstanding scientist S.Ya. Braude to the current state. Design/methodology/approach: The constant progress of electronic, computer and digital technologies, information and telecommunication technologies, theory and practice of antenna and receiving systems design, which introduction enriched the hardware and methodological ideology of construction and usage of the UTR-2, URAN, and GURT radio telescopes, have been used. Findings: The worldwide most

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35

Halpern, Elkan F., and Pari V. Pandharipande. "Behind the Numbers: Sensitivity Analysis in Cost-Effectiveness Modeling." Radiology 284, no. 2 (2017): 310–12. http://dx.doi.org/10.1148/radiol.2017170242.

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36

Marom, Edith M., Sarah Sarvis, James E. Herndon, and Edward F. Patz. "T1 Lung Cancers: Sensitivity of Diagnosis with Fluorodeoxyglucose PET." Radiology 223, no. 2 (2002): 453–59. http://dx.doi.org/10.1148/radiol.2232011131.

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37

Benaglia, Paula, Santiago del Palacio, Christopher Hales, and Marcelo E. Colazo. "High-sensitivity radio study of the non-thermal stellar bow shock EB27." Monthly Notices of the Royal Astronomical Society 503, no. 2 (2021): 2514–22. http://dx.doi.org/10.1093/mnras/stab662.

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ABSTRACT We present a deep radio-polarimetric observation of the stellar bow shock EB27 associated with the massive star BD+43○3654. This is the only stellar bow shock confirmed to have non-thermal radio emission. We used the Jansky Very Large Array in S band (2–4 GHz) to test whether this synchrotron emission is polarized. The unprecedented sensitivity achieved allowed us to map even the fainter regions of the bow shock, revealing that the more diffuse emission is steeper and the bow shock brighter than previously reported. No linear polarization is detected in the bow shock above 0.5 per cen

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38

Johnston, Kenneth J., Ralph L. Fiedler, and Richard S. Simon. "Monitoring source variability with the Fast All Sky Telescope." International Astronomical Union Colloquium 131 (1991): 445–48. http://dx.doi.org/10.1017/s0252921100013816.

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AbstractThe proposed Fast All Sky Telescope (FAST) is an interferometer which is intended to monitor the northern four-fifths of the celestial sphere every two days at 8.1 GHz and daily at 2.7 GHz. The design goal is to have a rms sensitivity of 10 mJy/beam at both frequencies. The array is planned to comprise 20 3-meter diameter antennas with a maximum baseline of 0.7 km. FAST will provide a valuable database that may be used to study time variability in a sensitivity limited sample of radio sources. This will significantly impact on the understanding of active Galactic and extragalactic radi

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39

Cotton, W. D., J. J. Condon, Q. F. Yin, R. A. Perley, and J. J. Broderick. "The NRAO VLA D-Array Sky Survey (NVSS)." Symposium - International Astronomical Union 175 (1996): 503–6. http://dx.doi.org/10.1017/s0074180900081651.

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Early large scale radio surveys of the sky were made with instruments with poor imaging quality and were limited to measuring positions and brightnesses of discrete sources. In recent decades radio interferometric arrays have dramatically increased their speed, sensitivity and ability to image the sky and several large scale radio surveys are currently being made with imaging instruments. One of these surveys is discussed in this paper.

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40

van Leeuwen, Joeri, Wim Hermsen, Jason Hessels, et al. "“An X-Raydio Switcheroo” – The detection of correlated mode changes in radio and X-ray." Proceedings of the International Astronomical Union 8, S291 (2012): 321. http://dx.doi.org/10.1017/s1743921312023976.

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AbstractWe present high-sensitivity XMM/LOFAR observations that show for the first time that mode switching extends from radio to X-ray. In pulsar B0943+10, the known changes in radio profile and drift rate are confidently tied to simultaneous changes in X-ray emission.In mode switching, seen in many pulsars, profile and subpulse-drift behavior change almost instantaneously. The mechanism for these drastic changes, or for the bi-stable emission behavior, is not understood; while even for the basic emission mechanism different families of theories (e.g. vacuum gap, or space-charge limited flow

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41

Kellermann, K. I. "VLBI in the 1990s." Publications of the Astronomical Society of Australia 8, no. 04 (1990): 327–29. http://dx.doi.org/10.1017/s1323358000023651.

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Abstract Radio telescopes in more than 20 different countries on five continents are being used for VLBI observations of galactic and extragalactic radio sources, as well for applications to geodesy and geophysics. New radio telescopes and networks of radio telescopes dedicated to VLBI which are being built in the United States, the U.S.S.R., Italy, China, Poland, the U.K. as well as in Australia will greatly improve the sensitivity, resolution, image quality, and frequency coverage of the existing networks. The Mk II VLBI recording system, which is based on consumer type Video Tape Recorders,

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42

Glasmachers, A. "Active miniature radio frequency field probe." Advances in Radio Science 1 (May 5, 2003): 161–64. http://dx.doi.org/10.5194/ars-1-161-2003.

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Abstract. For the measuring of the electromagnetic interference (e.g. on men) of RF fields produced by mobile communication equipment field probes are required with high spatial resolution and high sensitivity. Available passive probes show good results with respect to bandwidth and low field distortion, but do not provide the required sensitivity and dynamic range. A significant limitation for active miniature probes is the power supply problem, because batteries cannot be used. Therefore the effect of high impedance connection lines is examined by a numerical field simulation. Different appr

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43

Paul, Surajit, Prateek Gupta, Sameer Salunkhe, et al. "uGMRT detection of cluster radio emission in low-mass Planck Sunyaev–Zel’dovich clusters." Monthly Notices of the Royal Astronomical Society 506, no. 4 (2021): 5389–97. http://dx.doi.org/10.1093/mnras/stab1965.

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ABSTRACT Low-mass (M500 &lt; 5 × 1014 M⊙) galaxy clusters have been largely unexplored in radio observations, because of the inadequate sensitivity of existing telescopes. However, the upgraded Giant Metrewave Radio Telescope (uGMRT) and the Low Frequency ARray (LoFAR), with unprecedented sensitivity at low frequencies, have paved the way to study less massive clusters more closely than before. We have started the first large-scale programme to systematically search for diffuse radio emission from low-mass galaxy clusters, chosen from the Planck Sunyaev–Zel’dovich cluster catalogue. We rep

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44

Melnik, V. N., A. A. Konovalenko, V. V. Dorovskyy, A. Lecacheux, H. O. Rucker, and M. V. Shevchuk. "EXPLORATION OF THE SOLAR DECAMETER RADIO EMISSION WITH THE UTR-2 RADIO TELESCOPE." Radio physics and radio astronomy 26, no. 1 (2021): 74–89. http://dx.doi.org/10.15407/rpra26.01.074.

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Purpose: The overview of the scientifi c papers devoted to the study of the solar decameter radio emission with the world’s largest UTR-2 radio telescope (Ukraine) published for the last 50 years. Design/methodology/approach: The study and analysis of the scientifi c papers on both sporadic and quiet (thermal) radiation of the Sun recorded with the UTR-2 radio telescope at the decameter wavelength range. Findings: The most signifi cant observational and theoretical results of the solar radio emission studies obtained at the Institute of Radio Astronomy of the National Academy of Sciences of Uk

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45

Wong, G. F., M. D. Filipovic, E. J. Crawford, et al. "New 20-cm radio-continuum study of the small Magellanic cloud: Part I. Images." Serbian Astronomical Journal, no. 182 (2011): 43–52. http://dx.doi.org/10.2298/saj1182043w.

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We present and discuss new high-sensitivity and resolution radiocontinuum images of the Small Magellanic Cloud (SMC) at ?=20 cm (?=1.4 GHz). The new images were created by merging 20-cm radio-continuum archival data, from the Australian Telescope Compact Array and the Parkes radio-telescope. Our images span from ?10"to ?150" in resolution and sensitivity of r.m.s.?0.5 mJy/beam. These images will be used in future studies of the SMC?s intrinsic sources and its overall extended structure.

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46

Pierce, J. C. S., C. N. Tadhunter, and R. Morganti. "The radio properties of high-excitation radio galaxies with intermediate radio powers." Monthly Notices of the Royal Astronomical Society 494, no. 2 (2020): 2053–67. http://dx.doi.org/10.1093/mnras/staa531.

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ABSTRACT In the past decade, high-sensitivity radio surveys have revealed that the local radio active galactic nucleus population is dominated by moderate-to-low power sources with emission that is compact on galaxy scales. High-excitation radio galaxies (HERGs) with intermediate radio powers (22.5 &lt; log (L1.4 GHz) &lt; 25.0 W Hz−1) form an important sub-group of this population, since there is strong evidence that they also drive multiphase outflows on the scales of galaxy bulges. Here, we present high-resolution Very Large Array observations at 1.5, 4.5, and 7.5 GHz of a sample of

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47

Torne, Pablo. "Pulsar observations at millimetre wavelengths." Proceedings of the International Astronomical Union 13, S337 (2017): 92–95. http://dx.doi.org/10.1017/s1743921317009085.

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AbstractDetecting and studying pulsars above a few GHz in the radio band is challenging due to the typical faintness of pulsar radio emission, their steep spectra, and the lack of observatories with sufficient sensitivity operating at high frequency ranges. Despite the difficulty, the observations of pulsars at high radio frequencies are valuable because they can help us to understand the radio emission process, complete a census of the Galactic pulsar population, and possibly discover the elusive population in the Galactic Centre, where low-frequency observations have problems due to the stro

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Martinez Aviles, G., M. Johnston-Hollitt, C. Ferrari, et al. "ATCA observations of the MACS-Planck Radio Halo Cluster Project." Astronomy & Astrophysics 611 (March 2018): A94. http://dx.doi.org/10.1051/0004-6361/201731521.

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Aim. A fraction of galaxy clusters host diffuse radio sources whose origins are investigated through multi-wavelength studies of cluster samples. We investigate the presence of diffuse radio emission in a sample of seven galaxy clusters in the largely unexplored intermediate redshift range (0.3 < z < 0.44). Methods. In search of diffuse emission, deep radio imaging of the clusters are presented from wide band (1.1–3.1 GHz), full resolution (~5 arcsec) observations with the Australia Telescope Compact Array (ATCA). The visibilities were also imaged at lower resolution after point source m

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Brunetti, G., G. Setti, and A. Comastri. "On the X-Ray Emission from the Powerful Radio galaxies." Symposium - International Astronomical Union 175 (1996): 407–8. http://dx.doi.org/10.1017/s0074180900081262.

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There is a growing evidence that radio loud quasars and powerful FR II radio galaxies belong to the same population. While X-ray observations of low redshift radio galaxies generally support the unified scheme relating the FR II radio galaxies to the radio quasars, nevertheless detailed studies of the X-ray properties of distant radio galaxies are made difficult due to both the low sensitivity of X-ray-satellites and to the emission of the hot intracluster gas in which they are normally embedded. We point out that significant fluxes of X-rays are produced in the strong radio galaxies by the In

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Genders, Tessa S. S., Sandra Spronk, Theo Stijnen, Ewout W. Steyerberg, Emmanuel Lesaffre, and M. G. Myriam Hunink. "Methods for Calculating Sensitivity and Specificity of Clustered Data: A Tutorial." Radiology 265, no. 3 (2012): 910–16. http://dx.doi.org/10.1148/radiol.12120509.

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