Results 21 to 30 of about 14,620 (167)
Astronomy & AstrophysicsContext. The F-, G-, K-, and M-type stars are the most abundant stellar population in the Milky Way and are expected to contribute to its diffuse X-ray emission.
Zheng Xueying +17 more
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Clumpy Wind Studies and the Nondetection of a Cyclotron Line in OAO 1657–415
The Astrophysical Journal, 2023 Winds of massive stars are suspected to be inhomogeneous (or clumpy), which biases the measures of their mass-loss rates. In high-mass X-ray binaries (HMXBs), the compact object can be used as an orbiting X-ray point source to probe the wind and ...
Pragati Pradhan +13 more
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Catalog of X-Ray Detected Be Stars (XDBS)
Research Notes of the AAS, 2022 Abstract We present a catalog of X-ray Detected Be Stars (XDBS) with 161 Be stars from the Be Star Spectra (BeSS) database having X-ray counterparts in the Chandra Source Catalog v2.0, XMM-Newton 4XMM-DR11 Catalog, or Swift 2SXPS Catalog.
Caden Gobat +4 more
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Probing neutron star physics using accreting neutron stars
EPJ Web of Conferences, 2010 We give an obervational overview of the accreting neutron stars systems as probes of neutron star physics. In particular we focus on the results obtained from the periodic timing of accreting millisecond X-ray pulsars in outburst and from the ...
Patruno A.
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X-Ray Emission of Massive Stars and Their Winds
, 2022 Invited chapter of the Handbook of X-ray and Gamma-ray ...
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The Astrophysical Journal, 2023 Gamma-ray binary systems, a subclass of high-mass X-ray binaries, show nonthermal emissions from radio to TeV. While efficient electron acceleration is considered to take place in them, the nature of the acceleration mechanism and the physical ...
Hiroki Yoneda +7 more
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The Astrophysical Journal Supplement Series, 2023 We introduce the New-ANGELS program, an XMM-Newton survey of a ∼7.2 deg ^2 area around M31, which aims to study the X-ray populations in the M31 disk and the X-ray-emitting hot gas in the inner halo of M31 up to 30 kpc. In this first paper, we report the
Rui Huang +8 more
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The Astrophysical Journal, 1969 Scorpius X-1 X ray star model based on relativistic electron distribution due to magnetic field fluctuations, considering role of Alfven ...
Oscar P. Manley, Stainslaw Olbert
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Neutron Stars as X-ray Sources
Nature, 1964 DURING the rocket flight reported in the preceding communication, Bowyer et al. found two celestial X-ray sources with diameters less than 5°. One was located in the northern part of Scorpius in a region of faint stars but devoid of visible nebulosity and radio objects, while the other was coincident with the Crab Nebula, the well-known source of ...
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Origin and Composition of the Galactic Diffuse X-Ray Emission Spectra by Unresolved X-Ray Sources
The Astrophysical JournalGalactic diffuse X-ray emission (GDXE) can be spatially segmented into Galactic center X-ray emission (GCXE), Galactic ridge X-ray emission (GRXE), and Galactic bulge X-ray emission (GBXE).
Katsuji Koyama, Masayoshi Nobukawa
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