Color–color diagrams as tools for assessment of the variable absorption in high mass X-ray binaries [PDF]
Astronomy & Astrophysics, 2020 High mass X-ray binaries hold the promise of allowing us to understand the structure of the winds of their supermassive companion stars by using the emission from the compact object as a backlight to evaluate the variable absorption in the structured ...
V. Grinberg, M. Nowak, N. Hell
semanticscholar +1 more source
On the binary nature of massive blue hypergiants: high-resolution X-ray spectroscopy suggests that Cyg OB2 12 is a colliding wind binary [PDF]
, 2017 The blue hypergiant Cyg OB2-12 (B3Ia+) is a representative member of the class of very massive stars in a poorly understood evolutionary stage. We obtained its high-resolution X-ray spectrum using Chandra observatory.
Hainich, R. +7 more
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Neutron star masses from hydrodynamical effects in obscured supergiant high mass X-ray binaries [PDF]
Astronomy & Astrophysics, 2012 Context. A population of obscured supergiant high mass X-ray binaries has been discovered by INTEGRAL. X-ray wind tomography of IGR J17252-3616 inferred a slow wind velocity to account for the enhanced obscuration. Aims. The main goal of this study is to understand under which conditions high obscuration could occur. Methods.
A. Manousakis, R. Walter, J. M. Blondin
openaire +1 more source
The high energy X-ray probe (HEX-P): a new window into neutron star accretion
Frontiers in Astronomy and Space Sciences, 2023 Accreting neutron stars (NSs) represent a unique laboratory for probing the physics of accretion in the presence of strong magnetic fields (B ≳ 108 G).
R. M. Ludlam +19 more
doaj +1 more source
The first mm detection of a neutron star high-mass X-ray binary
Monthly Notices of the Royal Astronomical Society: Letters, 2023 ABSTRACT Neutron stars accreting from OB supergiants are often divided between persistently and transiently accreting systems, called supergiant X-ray binaries (SgXBs) and supergiant fast X-ray transients (SFXTs). This dichotomy in accretion behaviour is typically attributed to systematic differences in the massive stellar wind, binary ...
J van den Eijnden +11 more
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Drop in the Hard Pulsed Fraction and a Candidate Cyclotron Line in IGR J16320–4751 Seen by NuSTAR
The Astrophysical Journal, 2023 We report on a timing and spectral analysis of a 50 ks NuSTAR observation of IGR J16320−4751 (= AX J1631.9−4752), a high-mass X-ray binary hosting a slowly rotating neutron star.
A. Bodaghee +12 more
doaj +1 more source
High-mass X-ray binaries as a star formation rate indicator in distant galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 2003 Accepted by MNRAS, 19 ...
Grimm, H., Gilfanov, M., Sunyaev, R.
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Infrared identification of hard X-ray sources in the Galaxy [PDF]
, 2016 The nature of the low- to intermediate-luminosity (LX ∼ 1032–34 erg s−1) source population revealed in hard band (2–10 keV) X-ray surveys of the Galactic plane is poorly understood.
Carrera, Francisco J. +5 more
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High-mass X-ray binaries and recent star formation history of the Small Magellanic Cloud [PDF]
Astronomy Letters, 2007 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 of the stellar population by model stellar populations and, in this way, reconstructed the spatially resolved SFH ...
Shtykovskiy, P., Gilfanov, M.
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Nature of the Extreme Ultraluminous X-ray Sources [PDF]
, 2015 In this proof-of-concept study we demonstrate that in a binary system mass can be transferred toward an accreting compact object at extremely high rate. If the transferred mass is efficiently converted to X-ray luminosity (with disregard of the classical
Belczynski, Krzysztof +3 more
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