Results 1 to 10 of about 33,018 (264)
The X-ray background and the deep X-ray surveys [PDF]
Advances in Space Research, 2004 10 pages, 4 figures. Invited review talk, to appear in New X-ray Results from Clusters of Galaxies and Black Holes (Oct 2002; Houston, TX), eds. C. Done, E.M. Puchnarewicz, M.J.
Roberto Gilli
exaly +3 more sources
Deep Extragalactic X-Ray Surveys
Annual Review of Astronomy and Astrophysics, 2005 ▪ Abstract Deep surveys of the cosmic X-ray background are reviewed in the context of observational progress enabled by the Chandra X-Ray Observatory and the X-Ray Multi-Mirror Mission-Newton. The sources found by deep surveys are described along with their redshift and luminosity distributions, and the effectiveness of such surveys at selecting ...
W N Brandt
exaly +4 more sources
Surveys of the Cosmic X-Ray Background
, 2022 We provide a highly concise overview of what X-ray surveys and their multiwavelength follow-up have revealed about the nature of the cosmic X-ray background (CXRB) and its constituent sources. We first describe early global studies of the CXRB, the development of imaging CXRB surveys, and the resolved CXRB fraction.
Guang Yang, Brandt W N
exaly +3 more sources
X-ray Redshifts for Obscured Active Galactic Nuclei with AXIS Deep and Intermediate Surveys
UniverseThis study presents the capabilities of the AXIS telescope in estimating redshifts from X-ray spectra alone (X-ray redshifts, XZs). Through extensive simulations, we establish that AXIS observations enable reliable XZ estimates for more than 5500 ...
Alessandro Peca +4 more
doaj +3 more sources
The Long-term Monitoring Results of Insight-HXMT in the First 4 yr Galactic Plane Scanning Survey
The Astrophysical Journal Supplement Series, 2023 The first X-ray source catalog of the Insight-HXMT Galactic Plane (∣ b ∣ < 10°) Scanning Survey (GPSS) is presented based on the data accumulated from 2017 June to 2021 August. The 4 yr limit sensitivities at main energy bands can reach 8.2 × 10 ^−12 erg
Chen Wang +9 more
doaj +1 more source
Astronomische Nachrichten, 2003 AbstractWe review highlights of the results obtained from recent Galactic X‐ray survey observations, in particular ASCA Galactic center and plane surveys and our Chandra deep survey on the (l, b) ≈ (28°.5, 0°.0) region. Strong hard X‐ray diffuse components are observed from Galactic ridge, center and bulge, and they have both thermal and non‐thermal ...
Ebisawa, K. +4 more
openaire +2 more sources
BASS. XXII. The BASS DR2 AGN Catalog and Data
The Astrophysical Journal Supplement Series, 2022 We present the active galactic nucleus (AGN) catalog and optical spectroscopy for the second data release of the Swift BAT AGN Spectroscopic Survey (BASS DR2).
Michael J. Koss +34 more
doaj +1 more source
The Swift Deep Galactic Plane Survey (DGPS) Phase I Catalog
The Astrophysical Journal Supplement Series, 2023 The Swift Deep Galactic Plane Survey (DGPS) is a Swift Key Project consisting of 380 tiled pointings covering ∼40 deg ^2 of the Galactic plane between longitude 10 < ∣ l ∣ < 30 deg and latitude ∣ b ∣ < 0.5 deg. Each pointing has a 5 ks exposure, yielding
B. O’Connor +32 more
doaj +1 more source
BAT X‐Ray Survey. I. Methodology and X‐Ray Identification [PDF]
The Astrophysical Journal, 2008 35 pages, 10 figures, Accepted for publication in ApJ.
Ajello, M. +5 more
openaire +4 more sources
The Astrophysical Journal, 2023 Modern X-ray telescopes have detected hundreds of thousands of X-ray sources in the universe. However, current methods to classify these sources using the X-ray data themselves suffer problems—detailed X-ray spectroscopy of individual sources is too time
Pavan R. Hebbar, Craig O. Heinke
doaj +1 more source