Astrophysical X-ray sources are astronomical objects with physical properties which result in the emission of X-rays. Several types of astrophysical objects...

X-ray sources abound around us. They include the following: Natural X-ray sources: Astrophysical X-ray source, as viewed in X-ray astronomy X-ray background...

of X-rays from a discrete cosmic X-ray source. The high-energy focusing telescope (HEFT) is a balloon-borne experiment to image astrophysical sources in...

Cygnus X-1 (abbreviated Cyg X-1) is a galactic X-ray source in the constellation Cygnus and was the first such source widely accepted to be a black hole...

In astronomy and astrophysics, an ultraluminous X-ray source (ULX) is less luminous than an active galactic nucleus but more consistently luminous than...

compact X-ray emitting accretor. Low-mass X-ray binaries (LMXBs) Soft X-ray transients (SXTs) Symbiotic X-ray binaries Super soft X-ray sources or Super...

luminous supersoft X-ray source (SSXS, or SSS) is an astronomical source that emits only low energy (i.e., soft) X-rays. Soft X-rays have energies in the...

nucleus Astrometry Electromagnetic radiation Radio astronomy Astrophysical X-ray source Koupelis, Theo; Karl F. Kuhn (2007). In Quest of the Universe...

the remnant at all wavelengths. An X-ray source designated Cepheus X-1 (or Cep X-1) was detected by the Uhuru X-ray observatory at 4U 0022+63. Earlier...

In astronomy, Calvera (also known as 1RXS J141256.0+792204) is an X-ray source in the constellation Ursa Minor, identified in 2007 as an isolated neutron...

16017.x. S2CID 3176299. Prochaska, J.X.; et al. (2006). "The Galaxy Hosts and Large-Scale Environments of Short-Hard Gamma-Ray Bursts". Astrophysical Journal...

connection to known radio source PKS 1459−41. This is located near the star Beta Lupi, displaying a 30 arcmin circular shell. X-ray and optical emission from...

Characteristic X-rays are emitted when outer-shell electrons fill a vacancy in the inner shell of an atom, releasing X-rays in a pattern that is "characteristic"...

high-sensitivity X-ray survey using the Einstein Observatory and the discrete source contribution to the extragalactic X-ray background". The Astrophysical Journal...

light, astrophysical jets become relativistic jets as they show effects from special relativity. The formation and powering of astrophysical jets are...

Hyper-Luminous X-ray source 1, commonly known as HLX-1, is an intermediate-mass black hole candidate located in the lenticular galaxy ESO 243-49 about...

Be/X-ray binaries (BeXRBs or BeXBs) are a class of high-mass X-ray binaries that consist of a Be star and a neutron star. The neutron star is usually...

NASA on July 23, 1999. Chandra is sensitive to X-ray sources 100 times fainter than any previous X-ray telescope, enabled by the high angular resolution...

extreme astrophysical environments, as observed by the H.E.S.S. Observatory. Ongoing research aims to expand our understanding of gamma-ray sources, such...

event. In X-ray astronomy many sources have been discovered by placing an X-ray detector above the Earth's atmosphere. Often, the first X-ray source discovered...

magnetic field in universe directly detected by X-ray space observatory". phys.org. "Ultra-bright X-ray source awakens near a galaxy not so far away". ras...

X-ray pulsars or accretion-powered pulsars are a class of astronomical objects that are X-ray sources displaying strict periodic variations in X-ray intensity...

Cygnus X-3 is a high-mass X-ray binary (HMXB), one of the stronger binary X-ray sources in the sky. It is often considered to be a microquasar, and it...

Scorpius X-1 is an X-ray source located roughly 9000 light years away in the constellation Scorpius. Scorpius X-1 was the first extrasolar X-ray source discovered...

Centaurus X-3 (4U 1118–60) is an X-ray pulsar with a period of 4.84 seconds. It was the first X-ray pulsar to be discovered, and the third X-ray source to be...

factor of 10 or greater) that peak in the X-ray region of the electromagnetic spectrum. These astrophysical systems are composed of an accreting neutron...

shorter than those of X-rays. With frequencies above 30 exahertz (3×1019 Hz) and wavelengths less than 10 picometers (1×10−11 m), gamma ray photons have the...

active galaxies, quasars can be strong X-ray sources. Radio-loud quasars can also produce X-rays and gamma rays by inverse Compton scattering of lower-energy...

J. W.; Sommers, P. (1995). "In search of a source for the 320 EeV Fly's Eye cosmic ray". The Astrophysical Journal. 441 (1): 151–161. arXiv:astro-ph/9410069...

Seward, F. D; Swift, C. D (Oct 1967). "X-Ray Intensities and Spectra from Several Cosmic Sources". The Astrophysical Journal. 150 (10): 57–65. Bibcode:1967ApJ...