Results 11 to 20 of about 53,953 (346)
X-Raying the Birth of Binary Neutron Stars and Neutron Star–Black Hole Binaries [PDF]
The Astrophysical Journal, 2022 Abstract We consider fallback accretion after an ultrastripped supernova (USSN) that accompanies formation of a binary neutron star (BNS) or a neutron star–black hole binary (NS–BH). The fallback matter initially accretes directly to the nascent NS, while it starts to accrete to the circumbinary disk, typically 0.1–1 day after the onset ...
Kazumi Kashiyama, Ryo Sawada, Yudai Suwa
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Ultracompact X-ray binaries with He star companions [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT Ultracompact X-ray binaries (UCXBs) are low-mass X-ray binaries with hydrogen-deficient mass donors and ultrashort orbital periods. They have been suggested to be the potential Laser Interferometer Space Antenna (LISA) sources in the low-frequency region. Several channels for the formation of UCXBs have been proposed so far.
Bo Wang +7 more
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Magnetic Fields of Neutron Stars in X-Ray Binaries [PDF]
Space Science Reviews, 2014 16 pages, 9 figures, invited topical review, to be published in The Strongest Magnetic Fields in the Universe (Space Sciences Series of ISSI, Springer), Space Science Reviews ...
M. Revnivtsev, S. Mereghetti
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Be stars in X-ray binary systems [PDF]
International Astronomical Union Colloquium, 2000 AbstractThis paper will review the status of our observations and understanding of Be stars in X-ray binary systems. In virtually all cases the binary partner to the Be star is a neutron star. The circumstellar disk provides the accretion fuel and hence stimulates the X-ray emission, whilst the neutron star provides a valuable probe of the environment ...
M. J. Coe
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Low-Mass X-Ray Binaries with Strange Quark Stars [PDF]
Publications of the Astronomical Society of the Pacific, 2012 Strange quark stars (SSs) may originate from accreting neutron stars (NSs) in low-mass X-ray binaries (LMXBs). Assuming that conversion of NS matter to SSs occurs when the core density of accreting NS reaches to the density of quark deconfinement, $\sim 5 _0$, where $ _0\sim 2.7\times 10^{14}$g cm$^{-3}$ is nuclear saturation density, we investigate
Chunhua Zhu +3 more
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The Binary X-Ray Stars – the Observational Picture [PDF]
Symposium - International Astronomical Union, 1975 When X-ray sources in the galaxy were discovered in 1962 (Giacconi et al., 1962) it was only possible to speculate on their nature, which centered on supernova and cosmic-ray phenomena since these were the only very energetic events known. In particular, the discovery of an X-ray source associated with the Crab Nebula led to the idea that the emission ...
Herbert Gursky, Ethan Schreier
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Multiwavelength Characterization of the High-mass X-Ray Binary Population of M33
The Astrophysical Journal, 2023 We present multiwavelength characterization of 65 high-mass X-ray binary (HMXB) candidates in M33. We use the Chandra ACIS survey of M33 (ChASeM33) catalog to select hard X-ray point sources that are spatially coincident with UV-bright point-source ...
Margaret Lazzarini +14 more
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UPPER BOUNDS ON r-MODE AMPLITUDES FROM OBSERVATIONS OF LOW-MASS X-RAY BINARY NEUTRON STARS [PDF]
, 2013 We present upper limits on the amplitude of r-mode oscillations and gravitational-radiation-induced spin-down rates in low-mass X-ray binary neutron stars, under the assumption that the quiescent neutron star luminosity is powered by dissipation from a ...
S. Mahmoodifar, T. Strohmayer
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Bowen Fluorescence from Companion Stars in X-Ray Binaries [PDF]
International Astronomical Union Colloquium, 2004 AbstractThis paper will review a new technique of detecting companion stars in LMXBs and X-ray transients in outburst using the Bowen fluorescence NIII lines at 4634-4640. These lines are very efficiently reprocessed in the atmospheres of the companion stars and, thereby, provide estimates of the K2 velocities and mass functions.
Casares, J +5 more
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The clumpy absorber in the high-mass X-ray binary Vela X-1 [PDF]
, 2017 Bright and eclipsing, the high-mass X-ray binary Vela X-1 offers a unique opportunity to study accretion onto a neutron star from clumpy winds of O/B stars and to disentangle the complex accretion geometry of these systems.
V. Grinberg +18 more
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