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Related papers: On the Spatially Resolved Star-Formation History i…

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We study the relation between high-mass X-ray binary (HMXB) population and recent star formation history (SFH) for the Small Magellanic Cloud (SMC). Using archival optical SMC observations, we have approximated the color-magnitude diagrams…

Astrophysics · Physics 2009-11-13 P. Shtykovskiy , M. Gilfanov

We investigate the star formation history (SFH) as a function of radius in M101 using archival HST/ACS photometry. We derive the SFH from the resolved stellar populations in five 2' wide annuli. Binning the SFH into time frames…

Solar and Stellar Astrophysics · Physics 2015-06-22 Skyler Grammer , Roberta M. Humphreys

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…

X-ray binaries play a significant role in the thermal and ionization history of galaxies. Their X-ray luminosity can shed light on galactic star formation rates and histories. Compact objects are also crucial in the evolution of…

High Energy Astrophysical Phenomena · Physics 2025-08-27 J. C. Bray , E. R. Stanway , J. J. Eldridge

As part of the New-ANGELS program, we systematically investigate the X-ray luminosity functions (XLFs) of 4506 X-ray sources projected within a radius of 2.5 deg centering on M31. We construct XLFs for different regions in the disk and halo…

Astrophysics of Galaxies · Physics 2025-11-11 Rui Huang , Jiang-Tao Li , Wei Cui , Zhijie Qu , Joel N. Bregman , Xiang-Dong Li , Gabriele Ponti , Q. Daniel Wang

We characterize the optical counterparts to the compact X-ray source population within the nearby spiral galaxy M81 using multi-band Hubble Space Telescope (HST) imaging data. By comparing the optical luminosities and colors measured for…

High Energy Astrophysical Phenomena · Physics 2023-04-19 Qiana Hunt , Elena Gallo , Rupali Chandar , Angus Mok , Andrea Prestwich

We present an X-ray binary population synthesis model, and use it to simulate the evolution of X-ray binaries formed in a burst of star formation of duration 20 Myr and star-formation rate 10 M_sun/yr. Our goal is to explain the hard (2-10…

Astrophysics · Physics 2007-05-23 M. S. Sipior , M. Eracleous , S. Sigurdsson

We use VANDELS spectroscopic data overlapping with the $\simeq$7 Ms Chandra Deep Field South survey to extend studies of high-mass X-ray binary systems (XRBs) in 301 normal star-forming galaxies in the redshift range $3 < z < 5.5$. Our…

We report on the X-ray evolution over the last ~9 Gyr of cosmic history (i.e., since z = 1.4) of late-type galaxy populations in the Chandra Deep Field-North and Extended Chandra Deep Field-South (CDF-N and E-CDF-S, respectively; jointly…

Population synthesis models predict that high-mass X-ray binary (HMXB) populations produced in low metallicity environments should be more X-ray luminous, a trend supported by studies of nearby galaxies. This trend may be responsible for…

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…

Astrophysics · Physics 2009-11-07 Pranab Ghosh , Nicholas E. White

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

We present an analysis of $\sim$235 ks of Chandra observations obtained over $\sim$19 years of the nearby dwarf starburst galaxy IC 10 in order to study the X-ray variability and X-ray luminosity function (XLF) of its X-ray binary (XRB)…

High Energy Astrophysical Phenomena · Physics 2025-08-06 Breanna A. Binder , Rosalie Lazarus , Mina Thoresen , Silas Laycock , Sayantan Bhattacharya

Today's sensitive, high-resolution X-ray observations allow the study of populations of X-ray sources, in the luminosity range of Galactic X-ray binaries, in galaxies as distant as 20-30 Mpc. The traditional astronomical tools of…

Astrophysics · Physics 2009-11-13 G. Fabbiano

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

We report on the implications of the peak in the cosmic star-formation rate (SFR) at redshift z ~ 1.5 for the resulting population of low-mass X-ray binaries(LMXB) and for that of their descendants, the millisecond radio pulsars (MRP).…

Astrophysics · Physics 2009-10-30 Nicholas E. White , Pranab Ghosh

The calibrations linking observed luminosities to the star formation rate depend on the assumed stellar population synthesis model, initial mass function, star formation and metal enrichment history, and whether reprocessing by dust and gas…

Astrophysics of Galaxies · Physics 2019-10-23 Stephen M. Wilkins , Christopher C. Lovell , Elizabeth R. Stanway

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…

High redshift galaxies permit the study of the formation and evolution of X-ray binary populations on cosmological timescales, probing a wide range of metallicities and star-formation rates. In this paper, we present results from a large…

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