Results 21 to 30 of about 403,855 (253)
The evolution of ultracompact X-ray binaries [PDF]
Astronomy & Astrophysics, 2012 18 pages, 13 figures.
Gijs Nelemans +5 more
openaire +6 more sources
The Astrophysical Journal, 2023 Observations of the high-mass gamma-ray binary LS 2883/PSR B1259–63 with the Chandra X-ray Observatory during the 2011–2014 and 2014–2017 binary cycles have shown X-ray-emitting clumps, presumably ejected from the binary during periastron passages. These
Jeremy Hare +3 more
doaj +1 more source
NuSTAR Observations of X-ray Binaries [PDF]
Proceedings of 10th INTEGRAL Workshop: A Synergistic View of the High-Energy Sky — PoS(Integral2014), 2015 From the proceedings of the 10th INTEGRAL ...
Tomsick, John A. +11 more
openaire +6 more sources
The eclipsing X-ray pulsar X-7 in M33 [PDF]
, 1998 Using our extensive ROSAT X-ray observations of M33, we confirm a 3.45 day eclipse period for the Einstein source X-7 (Larson & Schulman, 1997) and discover evidence for a 0.31-s pulse period.
Brazier +25 more
core +3 more sources
Deep Search for Gamma-Ray Emission from the Accreting X-Ray Pulsar 1A 0535+262
The Astrophysical Journal, 2023 Binary systems are a well-established subclass of gamma-ray sources. The high mass X-ray binary pulsar 1A 0535+262 has been considered to be a possible gamma-ray emitter for a long time, although former gamma-ray searches using the Fermi Large Area ...
X. Hou +4 more
doaj +1 more source
Spectral Transitions in X-Ray Binaries [PDF]
Progress of Theoretical Physics Supplement, 2004 We systematically analyzed about a terabyte of data from Galactic binary systems to characterize how these spectra change as a function of mass accretion rate. With this volume of data we are able to identify the differences in behaviour of black holes and neutron stars, implying that black holes really do have an event horizon.
Done, Chris, Gierliński, Marek
openaire +5 more sources
Integral Fluxes of Neutrinos and Gamma-Rays Emitted from Neighboring X-ray Binaries
Universe, 2023 Astrophysical plasma ejections (jets) are formed and powered by black holes that accrete material from their companion star in binary systems. Black hole X-ray binary systems constitute potential powerful galactic and extragalactic neutrino and gamma-ray
Odysseas Kosmas +2 more
doaj +1 more source
Probing the X-ray Variability of X-ray Binaries [PDF]
Symposium - International Astronomical Union, 2003 Kilohertz quasi-periodic oscillations (kHz QPOs) has been regarded as representing the Keplerian frequency at the inner disk edge in the neutron star X-ray binaries. The so-called “parallel tracks” on the plot of the kHz QPO frequency vs. X-ray flux in neutron star X-ray binaries, on the other hand, show the correlation between the kHz QPO frequency ...
openaire +4 more sources
Ultra-compact (X-ray) binaries [PDF]
New Astronomy Reviews, 2010 To appear in proceedings of "A life with stars" a conference in honour of Ed van den Heuvel's 60th birthday, New Ast ...
P.G. Jonker +3 more
openaire +4 more sources
Constraint on the Accretion of NGC 6946 X-1 Using Broadband X-Ray Data
The Astrophysical Journal, 2023 We analyze broadband X-ray data of NGC 6946 X-1 and probe plausible accretion scenarios in this ULX. NGC 6946 X-1 is a persistent soft source with broadband continuum spectra described by two thermal disk components. The cool accretion disk temperature T
Tanuman Ghosh, Vikram Rana
doaj +1 more source