Results 111 to 120 of about 497,978 (250)
Stellar X-ray Binary Populations in Elliptical Galaxies [PDF]
arXiv, 2001 Chandra's high angular resolution can resolve emission from stellar X-ray binaries out of the diffuse X-ray emission from gaseous atmospheres within elliptical galaxies. Variations in the X-ray binary populations (per unit galaxian optical luminosity) are correlated with variations in the specific frequency of globular clusters in ellipticals.
arxiv
Observation of soft X-rays from cosmic sources [PDF]
A binary X-ray source, an extended extragalactic X-ray source and several nearby stars were surveyed for X-ray emission. The energy spectrum and time structure of X-ray flux from the binary source, Her X-l, was investigated in the range from 0.15 to 6 ...
Acton, L. W., Catura, R. C.
core +1 more source
X-ray detection of the substellar twin 2MASS J11011926-7732383 AB
, 2007 2MASS J11011926-7732383 AB (hereafter 2M1101AB), located in the Cha I star forming region, is a rare wide-separation brown dwarf binary. XMM-Newton and Chandra observations of 2M1101AB have allowed us to examine the influence of physical parameters (mass,
Anders +38 more
core +1 more source
On the X-ray properties of V Sge and its relation to the supersoft X-ray binaries [PDF]
arXiv, 1998 We investigate the ROSAT X-ray properties of V Sge, which has been proposed to be related to supersoft X-ray binaries. During optical bright states, V Sge is a faint hard X-ray source, while during optical faint states (V >=12 mag), V Sge is a `supersoft' X-ray source.
arxiv
The Astrophysical JournalBlack hole (BH) X-ray binaries (XRBs) are ideal targets to study the connection between accretion inflow and jet outflow. Here we present quasi-simultaneous, multiwavelength observations of the Galactic BH system MAXI J1820+070, throughout its 2018–2019 ...
Constanza Echiburú-Trujillo +37 more
doaj +1 more source
Discovery of the first accretion-powered millisecond X-ray pulsar [PDF]
arXiv, 1998 The precise origins of the millisecond radio pulsars, discovered in the early 1980s, remain uncertain until this day. They plausibly evolve from accreting low magnetic-field neutron stars in X-ray binary systems. If so, these stars should spin at millisecond rates.
arxiv
Investigating the Ultracompact X-Ray Binary Candidate SLX 1735-269 with NICER and NuSTAR
The Astrophysical JournalWe present two simultaneous NICER and NuSTAR observations of the ultracompact X-ray binary (UCXB) candidate SLX 1735−269 while the source was in two different spectral states. Using various reflection modeling techniques, we find that xillverCO , a model
D. L. Moutard +10 more
doaj +1 more source
X-Ray Views of Galactic Accreting Pulsars in High-Mass X-Ray Binaries [PDF]
Accreting X-ray pulsars, located in X-ray binaries, are neutron stars with magnetic fields as strong as $B\sim10^{12\text{--}13}$ G. This review offers a concise overview of the accretion and radiation processes of X-ray pulsars and summarizes their rich observational features, particularly focusing on complex and variable temporal phenomena, spectral ...
arxiv +1 more source
Linking burst-only X-ray binary sources to faint X-ray transients
, 2009 Burst-only sources are X-ray sources showing up only during short bursts but with no persistent emission (at least with the monitoring instrument which led to their discovery).
Bildsten +28 more
core +1 more source
A Preliminary X-Ray Study of Binary Alloys of Platinum with Cobalt, Molybdenum and Tungsten [PDF]
, 1941 Ralph Hultgren, R.I. Jaffee
openalex +1 more source