Results 251 to 260 of about 7,431,143 (302)

Piloting the feasibility of a population-based joint TB-HIV survey in KwaZulu-Natal Province, South Africa, 2019. [PDF]

open access: yesPLOS Glob Public Health
Murangandi P   +14 more
europepmc   +1 more source

Surveys of the Cosmic X-Ray Background [PDF]

open access: yes, 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.
Niel Brandt
exaly   +4 more sources

Deep Extragalactic X-Ray Surveys

open access: yesAnnual 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 ...
G Hasinger, W N Brandt
exaly   +4 more sources

The X-Ray Background and the Deep X-Ray Surveys [PDF]

open access: yesAdvances 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

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