Cosmology and the X-ray source counts
نویسندگان
چکیده
منابع مشابه
Probing Cosmology with the X-ray Forest
There is a growing consensus that in the present universe most baryons reside in galaxy clusters and groups in the form of highly ionized gas at temperatures of 10 ∼ 10 K. The H-like and He-like ions of the heavy elements can produce absorption features the so-called “X-ray Forest” in the X-ray spectrum of a background quasar. We investigate the distribution of the X-ray absorption lines produc...
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An analysis of the spatial fluctuations in 15 deep ASCA SIS0 images has been conducted in order to probe the 2-10 keV X-ray source counts down to a flux limit ∼ 2× 10erg cm s. Special care has been taken in modelling the fluctuations in terms of the sensitivity maps of every one of the 16 regions (5.6× 5.6 arcmin each) in which the SIS0 has been divided, by means of raytracing simulations with ...
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An analysis of the spatial uctuations in 15 deep ASCA SIS0 images has been conducted in order to probe the 2-10 keV X-ray source counts down to a ux limit 2 10 ?14 erg cm ?2 s ?1. Special care has been taken in modelling the uctuations in terms of the sensitivity maps of every one of the 16 regions (5:6 5:6 arcmin 2 each) in which the SIS0 has been divided, by means of raytracing simulations wi...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1979
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/186.4.867