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Relevant bibliographies by topics / Solar energy photometry

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Academic literature on the topic 'Solar energy photometry'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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Journal articles on the topic "Solar energy photometry"

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Sobotka, M., M. Vázquez, M. Sánchez Cuberes, J. A. Bonet, and A. Hanslmeier. "Infrared Photometry of Solar Active Regions." International Astronomical Union Colloquium 179 (2000): 289–92. http://dx.doi.org/10.1017/s0252921100064691.

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AbstractSimultaneous time series of broad-band images of two active regions close to the disk center were acquired at the maximum (0.80μm) and minimum (1.55μm) continuum opacities. Dark faculae are detected in images obtained as weighted intensity differences between both wavelength bands. The elements of quiet regions can be clearly distinguished from those of faculae and pores in scatter plots of brightness temperatures. There is a smooth transition between faculae and pores in the scatter plots. These facts are interpreted in terms of the balance between the inhibition of convective energy

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Glushneva, I. N., E. A. Markova, and A. V. Kharitonov. "Energy Distribution, Photometry and Physical Characteristics of the Sun and Solar Analogs." Highlights of Astronomy 7 (1986): 853–61. http://dx.doi.org/10.1017/s1539299600007383.

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AbstractColor indices of solar analogs in the Vilnius seven-color photometric system are discussed. The physical parameters (effective temperatures, radii and luminosities) for solar analogs with reliable spectrophotometric and photometric data were obtained by means of infrared fluxes. The effective temperatures of 16 Cyg A and B, which are considered to be the closest solar analogs are 5854 and 5664 K, respectively. The radii of both stars are in the range of 1 Ro < R < 1.4 Ro and luminosities 1.2Lo < L < 2.1 Lo for 16 Cyg A and Lo < L < 1.7 Lo for 16 Cyg B depending on dif

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Zhi, Hui, Xiaojun Jiang, and Jianfeng Wang. "Multicolour photometry of LEO mega-constellations Starlink and OneWeb." Monthly Notices of the Royal Astronomical Society 530, no. 4 (2024): 5006–15. http://dx.doi.org/10.1093/mnras/stae693.

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ABSTRACT The development of low earth orbit (LEO) mega-constellation fundamentally threatens ground-based optical astronomical observations. To study the photometric properties of the LEO mega-constellations, we used the Xinglong 50 cm telescope to conduct a large-sample, high-precision, and multicolour target-tracking photometry of two typical LEO mega-constellations: Starlink and OneWeb. Over a three-month observation period starting on 2022 January 1, we collected 1447 light curves of 404 satellites in four typical versions: Starlink v1.0, DarkSat, VisorSat, Starlink v1.5, and OneWeb. Accor

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Maehara, Hiroyuki. "Starspot Activity and Superflares on Solar-type Stars." Proceedings of the International Astronomical Union 12, S328 (2016): 22–29. http://dx.doi.org/10.1017/s1743921317003945.

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AbstractRecent high-precision photometry from space (e.g., Kepler) enables us to investigate the nature of “superflares” on solar-type stars. The bolometric energy of superflares detected by Kepler ranges from 1033 erg to 1036 erg which is 10-10,000 times larger than that released by a typical X10 class solar flare. The occurrence frequency (dN/dE) of superflares as a function of flare energy (E) shows the power-law distribution with the power-law index of ~−1.8 for 1034 < E < 1036 erg. Most of superflare stars show quasi-periodic light variations which suggest the presence of large star

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Carry, B. "Solar system science with ESA Euclid." Astronomy & Astrophysics 609 (January 2018): A113. http://dx.doi.org/10.1051/0004-6361/201730386.

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Context. The ESA Euclid mission has been designed to map the geometry of the dark Universe. Scheduled for launch in 2020, it will conduct a six-year visible and near-infrared imaging and spectroscopic survey over 15 000 deg2 down to VAB ~ 24.5. Although the survey will avoid ecliptic latitudes below 15°, the survey pattern in repeated sequences of four broadband filters seems well-adapted to detect and characterize solar system objects (SSOs). Aims. We aim at evaluating the capability of Euclid of discovering SSOs and of measuring their position, apparent magnitude, and spectral energy distrib

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Durbin, M. J., R. L. Beaton, A. J. Monson, B. Swidler, and J. J. Dalcanton. "Empirical 2MASS–WFC3/IR Filter Transformations Across the H-R Diagram from Synthetic Photometry." Astronomical Journal 166, no. 6 (2023): 236. http://dx.doi.org/10.3847/1538-3881/acfaa1.

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Abstract Near-infrared bandpasses on spaceborne observatories diverge from their ground-based counterparts as they are free of atmospheric telluric absorption. Available transformations between respective filter systems in the literature rely on theoretical stellar atmospheres, which are known to have difficulties reproducing the observed spectral energy distributions of cool giants. We present new transformations between the Two Micron All Sky Survey JHK S and Hubble Space Telescope WFC3/IR F110W, F125W, and F160W photometric systems based on synthetic photometry of empirical stellar spectra

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Bernardinelli, Pedro H., Gary M. Bernstein, Nicholas Jindal, et al. "Photometry of Outer Solar System Objects from the Dark Energy Survey. I. Photometric Methods, Light-curve Distributions, and Trans-Neptunian Binaries." Astrophysical Journal Supplement Series 269, no. 1 (2023): 18. http://dx.doi.org/10.3847/1538-4365/acf6bf.

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Abstract We report the methods of and initial scientific inferences from the extraction of precision photometric information for the >800 trans-Neptunian objects (TNOs) discovered in the images of the Dark Energy Survey (DES). Scene-modeling photometry is used to obtain shot-noise-limited flux measures for each exposure of each TNO, with background sources subtracted. Comparison of double-source fits to the pixel data with single-source fits are used to identify and characterize two binary TNO systems. A Markov Chain Monte Carlo method samples the joint likelihood of the intrinsic colors of

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Kim, I. S., N. L. Kroussanova, O. T. Matsuura, et al. "Using color photometry to search for the solar corona “reddening” effect." Radiophysics and Quantum Electronics 39, no. 10 (1996): 862–64. http://dx.doi.org/10.1007/bf02120975.

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Lipunov, Vladimir, Victor Kornilov, Evgeny Gorbovskoy, et al. "Master Robotic Net." Advances in Astronomy 2010 (2010): 1–6. http://dx.doi.org/10.1155/2010/349171.

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The main goal of the MASTER-Net project is to produce a unique fast sky survey with all sky observed over a single night down to a limiting magnitude of 19-20. Such a survey will make it possible to address a number of fundamental problems: search for dark energy via the discovery and photometry of supernovae (including SNIa), search for exoplanets, microlensing effects, discovery of minor bodies in the Solar System, and space-junk monitoring. All MASTER telescopes can be guided by alerts, and we plan to observe prompt optical emission from gamma-ray bursts synchronously in several filters and

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Vasilyev, Valeriy, Timo Reinhold, Alexander I. Shapiro, et al. "Sun-like stars produce superflares roughly once per century." Science 386, no. 6727 (2024): 1301–5. https://doi.org/10.1126/science.adl5441.

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Stellar superflares are energetic outbursts of electromagnetic radiation that are similar to solar flares but release more energy, up to 10 36 erg on main-sequence stars. It is unknown whether the Sun can generate superflares and, if so, how often they might occur. We used photometry from the Kepler space observatory to investigate superflares on other stars with Sun-like fundamental parameters. We identified 2889 superflares on 2527 Sun-like stars, out of 56,450 observed. This detection rate indicates that superflares with energies >10 34 erg occur roughly once per century on stars with Su

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Book chapters on the topic "Solar energy photometry"

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Glushneva, I. N., E. A. Markova, and A. V. Kharitonov. "Energy Distribution, Photometry and Physical Characteristics of the Sun and Solar Analogs." In Highlights of Astronomy. Springer Netherlands, 1986. http://dx.doi.org/10.1007/978-94-010-9376-7_127.

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Alslaihat, Motasem J., Hatem S. Widyan, Mashhoor A. Al-Wardat, Awni M. Kasawneh, Diala M. Taneenah, and Abdullah M. Hussein. "A Comprehensive Study of the Physical and Geometrical Characteristics of the Close Visual Binary System HIP 45571." In Springer Proceedings in Physics. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-3276-3_6.

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Abstract In this paper, we estimated the physical and geometrical characteristics of the visually close binary stellar system Hip 45571, using “Al-Wardat’s method for analyzing binary and multiple stellar systems”. We estimated the physical properties of the components of the system for the four measured parallax given by Gaia and Hipparcos, which gives a dynamical mass sum ranges between 2.43 and 2.52 solar mass using the new orbital parameters following Tokovinin’s dynamical method. The method used is a spectrophotometrical computational technique that employs Kurucz plane-parallel line-blan

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Conference papers on the topic "Solar energy photometry"

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Erdem, A., and O. Öztürk. "New photometric observations of HAT-P-25b and WASP-11b/HAT-P-10b." In SolarPACES 2017: International Conference on Concentrating Solar Power and Chemical Energy Systems. Author(s), 2018. http://dx.doi.org/10.1063/1.5078885.

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Verma, Rubal, Devendra Bonde, Nitin Sehgal, Hrishi Singh, and Jay Sharma. "Self-Operated Solar Side Marker for Commercial Vehicles." In WCX SAE World Congress Experience. SAE International, 2024. http://dx.doi.org/10.4271/2024-01-2463.

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<div class="section abstract"><div class="htmlview paragraph">In response to Federal Motor Vehicle Safety Standard 108, Side Marker lamps were equipped in both passenger and commercial vehicles. Side marker lights are designed to provide clear visibility and vehicle identification from side way to other drivers/passersby vehicles traveling in perpendicular directions. But in case of harness failure/any malfunctioning/improper maintenance post damages etc., the side marker lamp does not illuminate when it is critically required. This causes serious accidents or loss of human beings

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Beltran, L. "ANNUAL DAYLIGHTING PERFORMANCE OF AN INNOVATIVE, EFFICIENT, FULL-SCALE HORIZONTAL LIGHT PIPE." In CIE 2023 Conference. International Commission on Illumination, CIE, 2023. http://dx.doi.org/10.25039/x50.2023.po005.

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This paper introduces an efficient daylighting technology designed to enhance lighting conditions in deep interior spaces of multi-story buildings without increased solar heat gains. This passive horizontal solar light pipe redirects sunlight effectively to distances ranging from 5 m to 10 m from the facade. Photometric measurements conducted over the course of a year demonstrate that the system consistently delivers illuminance levels exceeding 300 lux for 9 hours (9:00-18:00) under clear and partly cloudy skies, and for 4 hours under overcast sky conditions (when the exterior global horizont

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