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Related papers: Evolution of the X-ray Luminosity in Young HII Gal…

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The Chandra Deep Field-South and North surveys (CDFs) provide unique windows into the cosmic history of X-ray emission from normal (non-active) galaxies. Scaling relations of normal galaxy X-ray luminosity (L_X) with star formation rate…

We use deep Chandra imaging to measure the distribution of X-ray luminosities (L_X) for samples of star-forming galaxies as a function of stellar mass and redshift, using a Bayesian method to push below the nominal X-ray detection limits.…

Astrophysics of Galaxies · Physics 2017-01-25 J. Aird , A. L. Coil , A. Georgakakis

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 existence or otherwise of X-ray luminous star-forming galaxies has been an open question since the era of the Einstein satellite. Various authors have claimed the discovery of X-ray luminous star-forming galaxies but in many cases more…

Astrophysics · Physics 2016-08-30 A. Zezas , A. Alonso-Herrero , M. J. Ward

The X-ray emission properties from the hot thermalized plasma that results from the collisions of individual stellar winds and supernovae ejecta within rich and compact star clusters are discussed. We propose a simple analytical way of…

We have modeled the displacement of luminous X-ray binaries from star clusters in star-burst galaxies with an evolutionary population synthesis code developed by Hurley et al. (2000, 2002). In agreement with Kaaret et al. (2004), we find…

High Energy Astrophysical Phenomena · Physics 2015-05-18 Zhao-Yu Zuo , Xiang-Dong Li

The origin of nebular HeII emission, which is frequently observed in low-metallicity (O/H) star-forming galaxies, remains largely an unsolved question. Using the observed anticorrelation of the integrated X-ray luminosity per unit of star…

Astrophysics of Galaxies · Physics 2019-02-28 D. Schaerer , T. Fragos , Y. Izotov

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

As part of an ongoing series of deep GMRT surveys we have observed the Spitzer extragalactic First Look Survey field, producing the deepest wide-field 610-MHz survey published to date. We reach an rms noise of 30 microJy/beam before primary…

Astrophysics · Physics 2008-06-12 Timothy Garn , Dominic Ford , Paul Alexander , David A. Green , Julia M. Riley

The relationship between star formation and infrared emission in galaxies will be investigated. If galaxies were simple objects and young stars were completely covered with dust, then all the absorbed light of the young stars would be…

Astrophysics · Physics 2023-03-08 Nikolaos D. Kylafis , Angelos Misiriotis

Star-forming regions have been the targets of X-ray observations since the dawn of satellite X-ray astronomy. The increase in sensitivity and/or spatial resolution offered by XMM-Newton and Chandra allows a dramatic improvement, both…

Astrophysics · Physics 2007-05-23 T. Montmerle , N. Grosso , E. D. Feigelson , L. Townsley

We compile a new sample of 115 nearby, non-Seyfert galaxies spanning a wide range of star formation activities, from starburst to nearly dormant, based on ultraviolet (UV) observations with various satellites. We combine these observations…

Astrophysics · Physics 2009-11-10 X. Kong , S. Charlot , J. Brinchmann , S. M. Fall

The evolution of magnetic fields in galaxies is still an open problem in astrophysics. In nearby galaxies the far-infrared-radio correlation indicates the coupling between magnetic fields and star formation. The correlation arises from the…

Astrophysics of Galaxies · Physics 2015-06-19 Jennifer Schober , Dominik R. G. Schleicher , Ralf S. Klessen

Nuclear hard X-ray luminosities (Lx,nuc) for a sample of 112 early type galaxies within a distance of 67 Mpc are used to investigate their relationship with the central galactic black hole mass Mbh, the inner galactic structure (using the…

Astrophysics of Galaxies · Physics 2015-05-19 S. Pellegrini

Infrared (IR) luminosity of galaxies originating from dust emission can be used as an indicator of the star formation rate (SFR). Inoue et al. (2000, IHK) have derived a formula for the conversion from IR luminosity to SFR by using the…

Astrophysics · Physics 2009-11-10 Hiroyuki Hirashita , Veronique Buat , Akio K. Inoue

Using X-ray monitoring observations with the ASM on board the RXTE and the BAT on board the Swift, we are able to study the spectral state transitions occurred in about 20 bright persistent and transient black hole and neutron star…

High Energy Astrophysical Phenomena · Physics 2015-05-13 Wenfei Yu , Zhen Yan

This white paper is motivated by open questions in star formation, which can be uniquely addressed by high resolution X-ray imaging and require an X-ray observatory with large collecting area along good spectral resolution. A complete…

Magnetically confined winds of early-type stars are expected to be sources of bright and hard X-rays. To clarify the systematics of the observed X-ray properties, we have analyzed a large series of Chandra and XMM observations,…

Solar and Stellar Astrophysics · Physics 2016-03-09 Yael Naze , Veronique Petit , Melanie Rinbrand , David Cohen , Stan Owocki , Asif ud-Doula , Gregg A Wade

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

Aims. We aim to describe the pre-main sequence and main-sequence evolution of X-ray and extreme-ultaviolet radiation of a solar mass star based on its rotational evolution starting with a realistic range of initial rotation rates. Methods.…

Solar and Stellar Astrophysics · Physics 2015-05-27 Lin Tu , Colin P. Johnstone , Manuel Güdel , Helmut Lammer