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Related papers: Modeling the Redshift Evolution of the Normal Gala…

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We use the number counts of X-ray selected normal galaxies to explore their evolution by combining the most recent wide-angle shallow and pencil-beam deep samples available. The differential X-ray number counts, dN/dS, for early and…

Astrophysics · Physics 2009-11-11 A. Georgakakis , I. Georgantopoulos , A. Akylas , A. Zezas , P. Tzanavaris

Properties of high redshift clusters are a fundamental source of information for cosmology. It has been shown by Oukbir and Blanchard (1997) that the combined knowledge of the redshift distribution of X-ray clusters of galaxies and the…

Astrophysics · Physics 2011-05-23 R. Sadat , A. Blanchard , J. Oukbir

We study the luminosity function (LF), the comoving rate and the detection rate of Long Gamma-Ray Burst (LGRBs) to high redshift, using galaxy catalogues constructed by combining high-resolution N-body simulations with semi-analytic models…

High Energy Astrophysical Phenomena · Physics 2015-05-19 M. A. Campisi , L. -X. Li , P. Jakobsson

We present detailed constraints on the metallicity dependence of the high mass X-ray binary (HMXB) X-ray luminosity function (XLF). We analyze ~5 Ms of Chandra data for 55 actively star-forming galaxies at D < 30 Mpc with gas-phase…

(abridged) A detailed comparison is performed of the LFs compiled at infrared, radio and optical wavelengths and converted into XLFs using available relations with the XLF directly estimated in the 0.5--2 keV energy band from X-ray surveys…

Astrophysics · Physics 2007-05-23 Piero Ranalli , Andrea Comastri , Giancarlo Setti

We investigate the relation between total X-ray emission from star-forming galaxies and their star formation activity. Using nearby late-type galaxies and ULIRGs from Paper I and star-forming galaxies from Chandra Deep Fields, we construct…

High Energy Astrophysical Phenomena · Physics 2015-06-05 S. Mineo , M. Gilfanov , B. D. Lehmer , G. E. Morrison , R. Sunyaev

We compute the luminosity function (LF) and the formation rate of long gamma ray bursts (GRBs) by fitting the observed differential peak flux distribution obtained by the BATSE experiment in two different scenarios: i) the GRB luminosity…

Astrophysics · Physics 2015-05-13 R. Salvaterra , C. Guidorzi , S. Campana , G. Chincarini , G. Tagliaferri

Gamma-ray bursts (GRBs) by virtue of their high luminosities can be detected up to very high redshifts and therefore can be excellent probes of the early universe. This task is hampered by the fact that most of their characteristics have a…

High Energy Astrophysical Phenomena · Physics 2015-06-11 Vahe' Petrosian , Ellie Kitanidis , Daniel Kocevski

The X-ray background (XRB) is produced by a large number of faint sources distributed over a wide range of redshifts. The XRB carries information on the spatial distribution and evolution of these sources. The goals of the paper are: 1. to…

Astrophysics · Physics 2009-11-13 Andrzej M. Soltan

Gamma Ray Bursts (GRBs) and galaxies at high redshift represent complementary probes of the star formation history of the Universe. In fact, both the GRB rate and the galaxy luminosity density are connected to the underlying star formation.…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 M. Trenti , R. Perna , S. Tacchella

Using an updated population synthesis code initially developed by Hurley et al. we modeled the synthetic X-ray binary (XRB) populations for direct comparison with the universal, featureless X-ray luminosity function (XLF) of high mass X-ray…

High Energy Astrophysical Phenomena · Physics 2015-06-17 Zhao-Yu Zuo , Xiang-Dong Li , Qiu-Sheng Gu

Gamma-ray bursts (GRBs) are powerful probes of the high-redshift universe. However, the proportion of collapsar GRBs among long GRBs and their event rate relative to the star formation rate (SFR) remain contentious issues. We assume that…

High Energy Astrophysical Phenomena · Physics 2025-05-02 Yan-Kun Qu , Zhong-Xiao Man , Shuang-Xi Yi , Yu-Peng Yang

Based on recent X-ray observations of the Milky Way, Magellanic Clouds and nearby starburst galaxies we study population of high mass X-ray binaries, their connection with ultra-luminous X-ray sources and relation to the star formation.…

Astrophysics · Physics 2009-11-10 M. Gilfanov , H. -J. Grimm , R. Sunyaev

Long gamma-ray bursts (LGRBs) are typically thought to result from the collapse of massive stars. Nonetheless, recent observations of gamma-ray bursts (GRBs) 211211A and 230307A, coupled with the low-redshift excess of LGRB event rates…

High Energy Astrophysical Phenomena · Physics 2025-05-12 Yan-Kun Qu , Zhong-Xiao Man , Zhi-Bin Zhang

We continue exploring our understanding of the collective properties of X-ray binaries in the stellar fields (i.e., outside globular clusters) of normal galaxies, introduced in Paper I of this series, where we considered high-mass X-ray…

High Energy Astrophysical Phenomena · Physics 2015-06-12 Harshal Bhadkamkar , Pranab Ghosh

Assuming a naive star formation history, we construct the synthetic X-ray source populations for comparison with the X-ray luminosity function (XLF) of the interacting galaxies NGC 4038/4039 using a population synthesis code. We have…

Astrophysics · Physics 2007-05-23 Xi-Wei Liu , Xiang-Dong Li

We investigate claims that recent deep X-ray surveys are detecting starbursts at cosmologically interesting redshifts (z=0-1). We combine X-ray data from the 2Ms CDF-North with multi-wavelength observations from GOODS to build the SEDs (UV,…

Astrophysics · Physics 2008-11-26 A. Georgakakis , M. Rowan-Robinson , T. S. R. Babbedge , I. Georgantopoulos

We present theoretical models for the formation and evolution of populations of low-mass X-ray binaries (LMXB) in the two elliptical galaxies NGC 3379 and NGC 4278. The models are calculated with the recently updated StarTrack code…

We determine the evolution of the galaxy luminosity function (LF) as a function of spectral type using the Autofib redshift survey, a compendium of over 1700 galaxy redshifts in various magnitude-limited samples spanning b_J=11.5-24.0. To…

Astrophysics · Physics 2015-06-24 Jeremy Heyl , Matthew Colless , Richard S. Ellis , Tom Broadhurst

We present an analysis of the evolution of 8625 Luminous Red Galaxies between z = 0.4 and z = 0.8 in the 2dF and SDSS LRG and QSO (2SLAQ) survey. The LRGs are split into redshift bins and the evolution of both the luminosity and stellar…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Manda Banerji , Ignacio Ferreras , Filipe B. Abdalla , Paul Hewett , Ofer Lahav