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The Chandra X-ray Observatory has completed a remarkable twenty years in orbit. A large part of the science program of Chandra during this time has involved the study of stars and their planetary systems. This primer aims to give the reader…

High Energy Astrophysical Phenomena · Physics 2020-04-29 Jeremy J. Drake

Pulsar astronomy is currently enjoying one of the most productive phases in its history. In this review, I outline some of the basic observational aspects and summarise some of the latest results of searches for pulsars in the disk of our…

Astrophysics · Physics 2007-05-23 D. R. Lorimer

Space Weather is the study of the conditions in the solar wind that can affect life on the surface of the Earth, particularly the increasingly technologically sophisticated devices that are part of modern life. Solar radio observations are…

Solar and Stellar Astrophysics · Physics 2024-05-03 Stephen M. White

The modern methods of measurement of the solar diameter and oblateness are reviewed. Either ground-based or balloon-borne and satellite measurements are considered. The importance of solar astrometry for General Relativity is emphasized,…

Solar and Stellar Astrophysics · Physics 2015-05-28 Costantino Sigismondi

Neutron stars are a remarkable marriage of Einstein's theory of general relativity with nuclear physics. Their interiors harbor extreme matter that cannot be probed in the laboratory. At such high densities and pressures, their cores may…

General Relativity and Quantum Cosmology · Physics 2022-02-10 Nicolas Yunes , M. Coleman Miller , Kent Yagi

Next-generation radio surveys are about to transform radio astronomy by discovering and studying tens of millions of previously unknown radio sources. These surveys will provide new insights to understand the evolution of galaxies,…

Astrophysics of Galaxies · Physics 2017-09-18 Ray P Norris

Magnetic waves are a relevant component in the dynamics of the solar atmosphere. Their significance has increased because of their potential as a remote diagnostic tool and their presumed contribution to plasma heating processes. We discuss…

Solar and Stellar Astrophysics · Physics 2023-07-19 I. Arregui

In the last decades Near-Earth Objects (NEOs) have become very important targets to study, since they can give us clues to the formation, evolution and composition of the Solar System. In addition, they may represent either a threat to…

Earth and Planetary Astrophysics · Physics 2014-09-24 S. Ieva , E. Dotto , D. Perna , M. A. Barucci , F. Bernardi , S. Fornasier , F. De Luise , E. Perozzi , A. Rossi , J. R. Brucato

In this paper we present the "Small Bodies: Near and Far" Infrared Database, an easy-to-use tool intended to facilitate the modeling of thermal emission of small Solar System bodies. Our database collects thermal emission measurements of…

Instrumentation and Methods for Astrophysics · Physics 2020-03-11 Róbert Szakáts , Thomas Müller , Víctor Alí-Lagoa , Gábor Marton , Anikó Farkas-Takács , Evelin Bányai , Csaba Kiss

The combination of visible and thermal data from the ground and astrophysics space missions is key to improving the scientific understanding of near-Earth, main-belt, trojans, centaurs, and trans-Neptunian objects. To get full information…

The radio continuum emission from the Galaxy has a rich mix of thermal and non-thermal emission. This very richness makes their interpretation challenging since the low radio opacity means that a radio image represents the sum of all…

Instrumentation and Methods for Astrophysics · Physics 2011-06-17 S. Bhatnagar , U. Rau , D. A. Green , M. P. Rupen

The quest for other habitable worlds and the search for life among them are major goals of modern astronomy. One way to make progress towards these goals is to obtain high-quality spectra of a large number of exoplanets over a broad range…

Traditional neutrino detectors are built deep underground to reduce backgrounds. The neutrino solar orbiting laboratory ($\nu$SOL) collaboration has been developing a concept to improve neutrino measurement not with a larger detector…

Solar and Stellar Astrophysics · Physics 2025-02-07 Jonathan Folkerts

The time-variable electromagnetic sky has been well-explored at a wide range of wavelengths. Numerous high-energy space missions take advantage of the dark Gamma-ray and X-ray sky and utilize very wide field detectors to provide almost…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 I. Sagiv , A. Gal-Yam , E. O. Ofek , E. Waxman , O. Aharonson , E. Nakar , D. Maoz , B. Trakhtenbrot , S. R. Kulkarni , E. S. Phinney , J. Topaz , C. Beichman , J. Murthy , S. P. Worden

The planned NASA Habitable Worlds Observatory (HWO) flagship mission aims to image and spectroscopically characterise 25 Earth-size planets in the habitable zones of their stars. However, one giant planet in the habitable zone can ruin your…

Solar plasma as a cause of radio signal delay has been playing an important role in solar and planetary science. Early experiments studying the distribution of electrons near the Sun from spacecraft ranging measurements were designed so…

Space Physics · Physics 2022-07-05 Dan Aksim , Dmitry Pavlov

Astronomical objects that change rapidly give us insight into extreme environments, allowing us to identify new phenomena, test fundamental physics, and probe the Universe on all scales. Transient and variable radio sources range from the…

Solar and Stellar Astrophysics · Physics 2026-01-27 Tara Murphy , David L. Kaplan

Detecting gravitational waves above 100 kHz would constitute a major discovery, as any observable signal would have to arise from new physics within the late universe. Although many technologies have been identified to explore this…

High Energy Physics - Phenomenology · Physics 2026-01-19 Asher Berlin , Dawid Brzeminski , Erwin H. Tanin

Determining the energy spectrum of an electron population can give key insights into the underlying physics of a radio source; however, the lack of high resolution, broad-bandwidth observations has left many ambiguities in our understanding…

Astrophysics of Galaxies · Physics 2014-05-01 J. J. Harwood , M. J. Hardcastle , J. H. Croston , A. Stroe , R. Morganti , E. Orru

The paper discusses the optimal conguration of one or more ring lasers to be used for measuring the general relativistic effects of the rotation of the earth, as manifested on the surface of the planet. The analysis is focused on devices…

General Relativity and Quantum Cosmology · Physics 2017-02-16 Angelo Tartaglia , Angela Di Virgilio , Jacopo Belfi , Nicolò Beverini , Matteo Luca Ruggiero