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Black hole low-mass X-ray binaries show a variety of variability features, which manifest themselves as narrow peak-like structures superposed on broad noise components in power density spectra in the hard X-ray emission. In this work we…

High Energy Astrophysical Phenomena · Physics 2015-07-10 H. Stiele , W. Yu

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

[abridged] The radio:X-ray correlation for hard and quiescent state black hole X-ray binaries is critically investigated in this paper. New observations of known sources, along with newly discovered ones, have resulted in an increasingly…

High Energy Astrophysical Phenomena · Physics 2015-06-04 Elena Gallo , Brendan Miller , Rob Fender

We present a new technique called "quantile analysis" to classify spectral properties of X-ray sources with limited statistics. The quantile analysis is superior to the conventional approaches such as X-ray hardness ratio or X-ray color…

Astrophysics · Physics 2009-11-10 Jaesub Hong , Eric M. Schlegel , Jonathan E. Grindlay

I review observations of the X-ray spectra of Galactic Black Hole Candidates, and theoretical ideas as to how these can be produced. X-ray reflection should enable different source geometries to be distinguished, but the ionisation…

Astrophysics · Physics 2009-10-31 C. Done

In this chapter, I present the main X-ray observational characteristics of black-hole binaries and low magnetic field neutron-star binaries, concentrating on what can be considered similarities or differences, with particular emphasis on…

High Energy Astrophysical Phenomena · Physics 2018-03-13 Tomaso M. Belloni

Over the past half century, X-ray and radio observations of accreting neutron stars and stellar mass black holes have yielded a rich observational picture with common features including state transitions and jet formation, but also sharp…

High Energy Astrophysical Phenomena · Physics 2020-01-08 Chandra B. Singh , David Garofalo , Kathryn Kennedy

We review the properties of 40 X-ray binaries that contain either a confirmed black hole or a black hole candidate. After discussing briefly the significance of these Galactic black holes to both astronomy and physics, we present basic data…

Astrophysics · Physics 2007-05-23 Jeffrey E. McClintock , Ronald A. Remillard

We present MSX two-color diagrams that can be used to characterize circumstellar environments of sources with good quality MSX colors in terms of IRAS color regions for oxygen-rich stars. With these diagrams we aim to provide a new tool…

Astrophysics of Galaxies · Physics 2014-11-20 Lorant O. Sjouwerman , Stephanie M. Capen , Mark J. Claussen

We review the recent multifrequency studies of galactic black hole binaries, aiming at revealing the underlying emission processes and physical properties in these systems. The optical and infrared observations are important for determining…

Using hard (E>10 keV) X-ray observations with NuSTAR, we are able to differentiate between accretion states, and thus compact object types, of neutron stars and black holes in X-ray binaries (XRBs) in M31, our nearest Milky Way-type…

X-ray sources in spiral galaxies can be approximately classified into bulge and disk populations. The bulge (or hard) sources have X-ray colors which are consistent with Low Mass X-ray Binaries (LMXB) but the the disk sources have softer…

High Energy Astrophysical Phenomena · Physics 2014-11-20 A. H. Prestwich , R. E. Kilgard , F. Primini , J. C. McDowell , A. Zezas

X-ray polarimetry promises to give qualitatively new information about high-energy astrophysical sources, such as binary black hole systems, micro-quasars, active galactic nuclei, and gamma-ray bursts. We designed, built and tested a hard…

We search the literature for reports on the spectral properties of neutron-star low-mass X-ray binaries when they have accretion luminosities between 1E34 and 1E36 ergs/s. We found that in this luminosity range the photon index (obtained…

High Energy Astrophysical Phenomena · Physics 2015-10-14 R. Wijnands , N. Degenaar , M. Armas Padilla , D. Altamirano , Y. Cavecchi , M. Linares , A. Bahramian , C. O. Heinke

Accreting black holes are unique tools to understand the physics under extreme gravity. While black hole X-ray binaries differ vastly in mass from AGN, their accretion and ejection flows are assumed to be essentially similar. Black hole…

High Energy Astrophysical Phenomena · Physics 2019-08-23 V. Grinberg

We revisit a core prediction of the disc instability model (DIM) applied to X-ray binaries. The model predicts the existence of a critical mass transfer rate, which depends on disc size, separating transient and persistent systems. We…

High Energy Astrophysical Phenomena · Physics 2015-06-05 M. Coriat , R. P. Fender , G. Dubus

This paper reviews some of the recent observational results on stellar mass black hole candidates. Over the last decade, much of the progress in this field has been achieved through the study of transient X--ray binary sources which shine…

Astrophysics · Physics 2009-09-25 L. Stella , G. L. Israel , S. Mereghetti , D. Ricci

A review is given on aspects of indirect imaging techniques in X-ray binaries which are used as diagnostics tools for probing the X-ray dominated accretion disc physics. These techniques utilize observed properties such as the emission line…

Astrophysics · Physics 2007-05-23 Emilios T. Harlaftis

The properties of X-ray emission from accreting black holes are reviewed. The contemporary observational picture and current status of theoretical understanding of accretion and formation of X-ray radiation in the vicinity of the compact…

High Energy Astrophysical Phenomena · Physics 2014-11-20 M. Gilfanov

Black hole X-ray binaries show signs of non-thermal emission in the optical/near-infrared range. We analyze the optical/near-infrared SMARTS data on GX339$-$4 over the 2002--2011 period. Using the soft state data, we estimate the…

High Energy Astrophysical Phenomena · Physics 2020-06-26 Ilia A. Kosenkov , Alexandra Veledina , Valery F. Suleimanov , Juri Poutanen