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searching for X-ray background 22 found (44 total)

HD 74772 (638 words) [view diff] exact match in snippet view article find links to article

Vela. It is positioned near the Vela SNR, which gives it an intense X-ray background. The star is of apparent visual magnitude 4.05, and hence is visible

Steady-state model (3,560 words) [view diff] no match in snippet view article find links to article

In cosmology, the steady-state model or steady state theory is an alternative to the Big Bang theory. In the steady-state model, the density of matter

OSO 3 (542 words) [view diff] exact match in snippet view article find links to article

extensive hard X-ray observations of solar flares, the cosmic diffuse X-ray background, and multiple observations of Scorpius X-1, the first observation of

Advanced Satellite for Cosmology and Astrophysics (745 words) [view diff] exact match in snippet view article find links to article

identifying the sources whose combined emission makes up the cosmic X-ray background. It performed over 3000 observations, and produced over 1000 publications

History of X-ray astronomy (7,174 words) [view diff] exact match in snippet view article find links to article

spectra of the diffuse soft X-ray background. DXS obtained the first-ever high resolution spectra of the diffuse soft X-ray background in the energy band from

NGC 4725 (1,157 words) [view diff] exact match in snippet view article find links to article

; Warwick, R. S. (March 1994). "The spectrum of the extragalactic X-ray background below 3 keV". Monthly Notices of the Royal Astronomical Society. 267

RX J1347.5−1145 (977 words) [view diff] case mismatch in snippet view article find links to article

contain point sources and cluster emission. Proper estimation of the X-Ray background in the galaxy cluster is known to be critical for spectral arrays of

Herbert Gursky (496 words) [view diff] exact match in snippet view article find links to article

later Cygnus X-1, his work on clusters of galaxies and the diffuse X-ray background from the Uhuru Satellite and the discovery of X-ray bursters on the

William Liller (1,046 words) [view diff] exact match in snippet view article find links to article

Observatory and the discrete source contribution to the extragalactic X-ray background". The Astrophysical Journal. 234: L1. Bibcode:1979ApJ...234L...1G.

Indian astronomy (7,671 words) [view diff] exact match in snippet view article find links to article

have operated a balloon launch base at Hyderabad where diffuse cosmic X-ray background is studied. ISRO played a role in the discovery of three species of

Lockman Hole (1,111 words) [view diff] exact match in snippet view article find links to article

123 X-ray sources in the Lockman Hole using XMM-Newton. The diffuse X-ray background (XRB) has also been studied in the area. Active galactic nuclei have

Gary A. Wegner (1,024 words) [view diff] exact match in snippet view article find links to article

Efstathiou, G., Allan, D.J., Quenby, J.J. "The origin of the cosmic soft X-ray background: Optical identification of an extremely deep ROSAT survey" (1998) Monthly

Primordial black hole (6,210 words) [view diff] exact match in snippet view article find links to article

the observed spatial correlations in the unresolved gamma-ray and X-ray background radiations could be due to primordial black holes with similar masses

ISRO (18,010 words) [view diff] exact match in snippet view article find links to article

fluxes are low, makes it an ideal location to study diffuse cosmic X-ray background. ISRO played a role in the discovery of three species of bacteria in

Priyamvada Natarajan (928 words) [view diff] exact match in snippet view article find links to article

feedback processes in galaxy formation; stellar contributors to the X-ray background and the evolution of neutral gas with redshift. Binary black holes

NGC 1106 (357 words) [view diff] exact match in snippet view article find links to article

de. Retrieved 2023-12-02. "Compton Thick AGN: The dark side of the X-ray background - A. Comastri". ned.ipac.caltech.edu. Retrieved 2023-12-03. Tanimoto

Ajit Kembhavi (1,167 words) [view diff] exact match in snippet view article find links to article

as a part of his PhD thesis) Quasars: Estimation of quasars to the X-ray background. X-Ray Binaries: Study of the tidal capture formation of globular cluster

X-ray transient (2,602 words) [view diff] exact match in snippet view article find links to article

Her, discovered X-rays from Algol and HZ 43, and surveyed the soft X-ray background (0.1-0.28 kev). Tenma was the second Japanese X-ray astronomy satellite

NGC 4747 (603 words) [view diff] exact match in snippet view article find links to article

; Warwick, R. S. (March 1994). "The spectrum of the extragalactic X-ray background below 3 keV". Monthly Notices of the Royal Astronomical Society. 267

List of astronomy acronyms (13,307 words) [view diff] exact match in snippet view article find links to article

on timescales greater than 8 days CXBR – (celestial object) Cosmic x-ray background radiation CXO – (catalog) Chandra X-ray Observation, a catalog based

Indirect detection of dark matter (3,612 words) [view diff] exact match in snippet view article find links to article

observation of the spectral line at 3.5 keV, as expected, in both the cosmic X-ray background and the Galactic center, but inconsistent with the results from Chandra

PKS 0438-436 (3,525 words) [view diff] exact match in snippet view article find links to article

high-redshift member of a population of quasars which can contribute to the X-ray background above 2 keV, without being detectable by previous imaging missions