Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: X-Ray Probes of Cosmic Star-Formation History   We discuss the imprints left by a cosmological evolution of the star
formation rate (SFR) on the evolution of X-ray luminosities Lx of normal
galaxies, using the scheme proposed by White and Ghosh (1998, WG98), wherein
the evolution of Lx of a galaxy is driven by the evolution of its X-ray binary
population. As indicated in WG98, the profile of Lx with redshift can both
serve as a diagnostic probe of the SFR profile and constrain evolutionary
models for X-ray binaries. We report here the first calculation of the expected
evolution of X-ray luminosities of galaxies, updating the WG98 work by using a
suite of more recently developed SFR profiles that span the currently plausible
range. The first Chandra deep imaging results on Lx are beginning to probe the
SFR profile of bright spirals: the early results are consistent with
predictions based on current SFR models. Using these new SFR profiles, the
resolution of the ``birthrate problem'' of low-mass X-ray binaries (LMXBs) and
recycled, millisecond pulsars (WG98) in terms of an evolving global SFR is more
complete. We discuss the possible impact of the variations in the SFR profile
of individual galaxies and galaxy-types.

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The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin
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The categories of this paper are: eess
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The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
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The categories of this paper are: alg-geom
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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-ex