Results 31 to 40 of about 497,978 (250)

A NICER Viewing Angle on the Accretion Stream of Vela X-1

The Astrophysical Journal, 2023
Vela X-1 is the archetypal eclipsing high-mass X-ray binary, composed of a neutron star (NS) accreting the B-star wind. It was observed by nearly all X-ray observatories, often multiple times, featuring a rich spectrum of variable emission lines. However,
Roi Rahin, Ehud Behar
doaj   +1 more source

NuSTAR observations and broadband spectral energy distribution modeling of the millisecond pulsar binary PSR J1023+0038 [PDF]

, 2014
We report the first hard X-ray (3-79 keV) observations of the millisecond pulsar (MSP) binary PSR J1023+0038 using NuSTAR. This system has been shown transiting between a low-mass X-ray binary (LMXB) state and a rotation-powered MSP state.
Cheng, K. S., Hui, C. Y., Jin, Ruolan, Kong, A. K. H., Li, K. L., Takata, J., Tam, P. H. T.   +6 more
core   +3 more sources

The eclipsing massive X-ray binary M33 X-7: New X-ray observations and optical identification [PDF]

, 2003
The eclipsing X-ray binary M33 X-7 was in the field of view during several observations of our XMM-Newton M33 survey and in the archival Chanfdra observation 1730 which cover a large part of the 3.45 d orbital period. We detect emission of M33 X-7 during
Alard, Alard, B. J. Mochejska, Buccheri, Cui, Deul, Dickey, Dubus, Eggleton, F. Haberl, G. Trinchieri, Gordon, Haberl, Haberl, Humphreys, Jansen, Kaluzny, Larson, Liu, Long, M. Ehle, Macri, Markert, Mochejska, Mochejska, Mochejska, Newton, Paczynski, Parmar, Peres, Pietsch, Predehl, Schulman, Schulman, Strüder, Tjemkes, Trinchieri, Trinchieri, Turner, van den Bergh, W. Pietsch, Weisskopf, White, Z. Misanovic   +43 more
core   +2 more sources

High-Mass X-ray Binaries

, 2023
Invited chapter for Handbook of X-ray and Gamma-ray Astrophysics, 44 pages of text, 11 pages of references, 18 figures, 1 ...
Fornasini, Francesca M, Antoniou, Vallia, Dubus, Guillaume   +2 more
openaire   +3 more sources

NuSTAR Hard X-ray Observation of the Gamma-ray Binary Candidate HESS J1832-093 [PDF]

, 2017
We present a hard X-ray observation of the TeV gamma-ray binary candidate HESS J1832-093 coincident with supernova remnant (SNR) G22.7-0.2 using the Nuclear Spectroscopic Telescope Array (NuSTAR). Non-thermal X-ray emission from XMMU J183245-0921539, the
Boggs, Steven E., Christensen, Finn E., Craig, William W., Garvin, Amani M., Gotthelf, E. V., Hailey, Charles J., Harrison, Fiona A., Hong, Jaesub, Hord, Ben J., Mori, Kaya, Rahoui, Farid, Stern, Daniel, Tomsick, John A., Wilhelmi, Emma de Ona, Zhang, Shuo, Zhang, William W.   +15 more
core   +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, P.G. Jonker, P.G. Jonker, Gijs Nelemans   +3 more
openaire   +4 more sources

A ROSAT Survey of Contact Binary Stars

, 2005
Contact binary stars are common variable stars which are all believed to emit relatively large fluxes of x-rays. In this work we combine a large new sample of contact binary stars derived from the ROTSE-I telescope with x-ray data from the ROSAT All-Sky ...
Hunsch M., M. T. Geske, McGale P. A., S. J. Gettel, T. A. McKay, Voges W.   +5 more
core   +1 more source

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, David, de Vaucouleurs, Dubus, E. Kuulkers, Eggleton, G. Dubus, Humphreys, K. S. Long, Larson, Leahy, Long, Long, Markert, P. A. Charles, P. J. Hakala, Peres, Schulman, Schulman, Schulman, Trinchieri, Trümper, van den Bergh, van der Klis, van Paradijs, White   +25 more
core   +3 more sources

A global study of X-ray binaries [PDF]

Proceedings of VII Microquasar Workshop: Microquasars and Beyond — PoS(MQW7), 2009
We present preliminary results on a global study of X-ray binaries using 14 Ms of data from the Rossi X-ray Timing Explorer satellite. Our initial study on GX 339-4 is recapped as an introduction to the methods used. We use a consistent analysis scheme for all objects, with three different spectral models to fit the powerlaw and disc components.
Robert Dunn, Rob Fender, Elmar Körding, Clement Cabanac, Tomaso Belloni   +4 more
openaire   +4 more sources

The Swift Deep Galactic Plane Survey (DGPS) Phase I Catalog

The Astrophysical Journal Supplement Series, 2023
The Swift Deep Galactic Plane Survey (DGPS) is a Swift Key Project consisting of 380 tiled pointings covering ∼40 deg ^2 of the Galactic plane between longitude 10 < ∣ l ∣ < 30 deg and latitude ∣ b ∣ < 0.5 deg. Each pointing has a 5 ks exposure, yielding
B. O’Connor, C. Kouveliotou, P. A. Evans, N. Gorgone, A. J. van Kooten, S. Gagnon, H. Yang, M. G. Baring, E. Bellm, P. Beniamini, J. Brink, D. A. H. Buckley, S. B. Cenko, O. D. Egbo, E. Göğüş, J. Granot, C. Hailey, J. Hare, F. Harrison, D. Hartmann, A. J. van der Horst, D. Huppenkothen, L. Kaper, O. Kargaltsev, J. A. Kennea, K. Mukai, P. O. Slane, D. Stern, E. Troja, Z. Wadiasingh, R. A. M. J. Wijers, P. Woudt, G. Younes   +32 more
doaj   +1 more source