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X-ray photons, because of their long mean-free paths, can easily escape the galactic environments where they are produced, and interact at long distances with the inter-galactic medium, potentially having a significant contribution to the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 Tassos Fragos , Bret D. Lehmer , Smadar Naoz , Andreas Zezas , Antara R. Basu-Zych

We use simple energetic arguments to estimate the contribution of massive X-ray binaries and supernova remnants to the cosmic X-ray background (XRB) at energies in excess of 2 keV. Recent surveys have shown that AGN probably account for…

Astrophysics · Physics 2009-10-31 Priyamvada Natarajan , Omar Almaini

X-ray appearance of normal galaxies is mainly determined by X-ray binaries powered by accretion onto a neutron star or a stellar mass black hole. Their populations scale with the star-formation rate and stellar mass of the host galaxy and…

High Energy Astrophysical Phenomena · Physics 2023-04-28 Marat Gilfanov , Giuseppina Fabbiano , Bret Lehmer , Andreas Zezas

The first population of X-ray binaries (XRBs) is expected to affect the thermal and ionization states of the gas in the early Universe. Although these X-ray sources are predicted to have important implications for high-redshift observable…

High Energy Astrophysical Phenomena · Physics 2023-03-29 Nina S. Sartorio , A. Fialkov , T. Hartwig , G. M. Mirouh , R. G. Izzard , M. Magg , R. S. Klessen , S. C. O. Glover , L. Chen , Y. Tarumi , D. D. Hendriks

Feedback to the interstellar medium (ISM) from ionising radiation, stellar winds and supernovae is central to regulating star formation in galaxies. Due to their low mass ($M_{*} < 10^{9}$\,M$_\odot$), dwarf galaxies are particularly…

Astrophysics of Galaxies · Physics 2022-05-17 Michelle L. M. Collins , Justin I. Read

The high mass X-ray binaries (HMXBs) provide an exciting framework to investigate the evolution of massive stars and the processes behind binary evolution. HMXBs have shown to be good tracers of recent star formation in galaxies and might…

High Energy Astrophysical Phenomena · Physics 2020-02-19 M. Celeste Artale , Nicola Giacobbo , Michela Mapelli , Paolo Esposito

Recent work suggests that the first generation of stars, the so-called Population III (Pop III), could have formed primarily in binaries or as members of small multiple systems. Here we investigate the impact of X-ray feedback from…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-11 Myoungwon Jeon , Andreas H. Pawlik , Volker Bromm , Milos Milosavljevic

Based on a homogeneous set of X-ray, infrared and ultraviolet observations from Chandra, Spitzer, GALEX and 2MASS archives, we study populations of high-mass X-ray binaries (HMXBs) in a sample of 29 nearby star-forming galaxies and their…

High Energy Astrophysical Phenomena · Physics 2015-05-28 S. Mineo , M. Gilfanov , R. Sunyaev

We use high-resolution cosmological simulations to compare the effect of bursty star formation histories on dwarf galaxy structure for two different subgrid supernovae (SNe) feedback models in dwarf galaxies with stellar masses from $5000…

Simulations of galaxy formation are mostly unable to resolve the energy-conserving phase of individual supernova events, having to resort to subgrid models to distribute the energy and momentum resulting from stellar feedback. However, the…

We introduce a method for obtaining the X-ray luminosity function (XLF) and the binary-period distribution of populations of high-mass X-ray binaries (HMXBs) in the stellar fields (i.e. outside globular clusters) of normal galaxies. We…

High Energy Astrophysical Phenomena · Physics 2015-06-03 Harshal Bhadkamkar , Pranab Ghosh

This chapter discusses the implications of X-ray binaries on our knowledge of Type Ibc and Type II supernovae. X-ray binaries contain accreting neutron stars and stellar--mass black holes which are the end points of massive star evolution.…

High Energy Astrophysical Phenomena · Physics 2018-04-25 Jorge Casares , Peter G. Jonker , Garik Israelian

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

The population-wide properties and demographics of extragalactic X-ray binaries (XRBs) correlate with the star formation rates (SFRs), stellar masses ($M_{\star}$), and environmental factors (such as metallicity, $Z$) of their host galaxy.…

High Energy Astrophysical Phenomena · Physics 2024-05-01 Breanna A. Binder , Rosalie Williams , Jacob Payne , Michael Eracleous , Alexander Belles , Benjamin F. Williams

The star formation (SF) can be regarded as an engine powering the light emission of spiral galaxies at several wavelengths. SF activity also plays a significant role in the evolution of galaxies. In this thesis we focus on the X-ray…

Astrophysics · Physics 2009-09-29 Piero Ranalli

High-mass X-ray binaries (HMXBs) might have contributed a non-negligible fraction of the energy feedback to the interstellar and intergalactic media at high redshift, becoming important sources for the heating and ionization history of the…

Astrophysics of Galaxies · Physics 2015-06-24 V. M. Douna , L. J. Pellizza , I. F. Mirabel , S. E. Pedrosa

Radiative feedback (RFB) from stars plays a key role in galaxies, but remains poorly-understood. We explore this using high-resolution, multi-frequency radiation-hydrodynamics (RHD) simulations from the Feedback In Realistic Environments…

High mass X-ray binaries (HMXBs) may have had a significant impact on the heating of the intergalactic medium in the early universe. Study of HMXBs in nearby, low metallicity galaxies that are local analogues to early galaxies can help us…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Philip Kaaret

We investigate the impact of time-resolved `gradual' stellar feedback processes in high redshift dwarf spheroidal galaxies. Here `gradual' feedback refers to individual stellar feedback events which deposit energy over a period of time. We…

Astrophysics of Galaxies · Physics 2019-09-02 L. Garratt-Smithson , G. A. Wynn , C. Power , C. J. Nixon

X-ray luminosity ($L_X$) originating from high-mass X-ray binaries (HMXBs) is tightly correlated with the host galaxy's star-formation rate (SFR). We explore this connection at sub-galactic scales spanning ${\sim}$7 dex in SFR and ${\sim}$8…

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