Results 41 to 50 of about 403,855 (253)

X-ray Emission from the Binary Central Stars of the Planetary Nebulae HFG 1, DS 1, and LoTr 5

, 2010
Close binary systems undergoing mass transfer or common envelope interactions can account for the morphological properties of some planetary nebulae. The search for close binary companions in planetary nebulae is hindered by the difficulty of detecting ...
Arnaud, Bohm, Bruch, Cargill, Chu, Churazov, De Marco, Drake, Frank, Frew, Grauer, Groth, Guerrero, Heckathorn, Heckathorn, Hilditch, Jasniewicz, Jeffries, Joel H. Kastner, Jordan, Kastner, Kastner, Kuczawska, Marsh, Mathioudakis, Montez, Motch, Muerset, Muerset, O'Dwyer, Orsola De Marco, Paczynski, Press, Ricker, Rodolfo Montez, Sanz-Forcada, Serber, Snowden, Soker, Stassun, Strassmeier, Thevenin, Weisskopf, You-Hua Chu   +43 more
core   +1 more source

Viscous timescale in high mass X-ray binaries [PDF]

, 2011
Context: Low mass X-ray binaries were found to have very low frequency breaks in their power density spectra below which the power density spectra are nearly in white noise structure and at higher frequencies they approximately follow the $P_\nu \propto \
A. Baykal, B. İçdem, Baykal, Baykal, Begelman, Blondin, Blondin, Boynton, Chakrabarty, Cherepashchuk, Clark, Conti, Deeter, Eggleton, Hong, Jones, Kaper, Koh, Lyubarskii, Miyamoto, Orosz, Paczynski, Papaloizou, Quaintrell, Revnivtsev, Revnivtsev, Ruhlen, Sadakane, Sato, Shakura, van der Meer, Wojdowski   +31 more
core   +2 more sources

X-Ray Binary Systems [PDF]

Symposium - International Astronomical Union, 1980
X-ray emission has now been detected from a large number and variety of binary systems. A brief survey of the properties of these binary systems is given, primarily from an optical standpoint.
openaire   +2 more sources

Pulsed Iron Line Emission from the First Galactic Ultraluminous X-Ray Pulsar Swift J0243.6+6124

The Astrophysical Journal
We report the phase-resolved spectral results of the first Galactic pulsating ultraluminous X-ray source (PULX) Swift J0243.6+6124, modeling its 2017–2018 outburst peak using data collected by the Hard X-ray Modulation Telescope (Insight-HXMT). The broad
Y. X. Xiao, Y. J. Xu, M. Y. Ge, F. J. Lu, S. N. Zhang, S. Zhang, L. Tao, J. L. Qu, P. J. Wang, L. D. Kong, Y. L. Tuo, Y. You, S. J. Zhao, J. Q. Peng, Y. F. Du, Y. H. Zhang, W. T. Ye   +16 more
doaj   +1 more source

Evidence for a Black Hole Spin–Orbit Misalignment in the X-Ray Binary Cyg X-1

The Astrophysical Journal Letters, 2023
Recently, the accretion geometry of the black hole X-ray binary Cyg X-1 was probed with the X-ray polarization. The position angle of the X-ray-emitting flow was found to be aligned with the position angle of the radio jet in the plane of the sky. At the
Andrzej A. Zdziarski, Alexandra Veledina, Michał Szanecki, David A. Green, Joe S. Bright, David R. A. Williams   +5 more
doaj   +1 more source

Swift J053041.9-665426, a new Be/X-ray binary pulsar in the Large Magellanic Cloud [PDF]

, 2013
We observed the newly discovered X-ray source Swift J053041.9-665426 in the X-ray and optical regime to confirm its proposed nature as a high mass X-ray binary.
Bartlett, E. S., Coe, M. J., Haberl, F., Maggi, P., Pietsch, W., Sturm, R., Vasilopoulos, G.   +6 more
core   +1 more source

GIANT OUTBURSTS IN Be/X-RAY BINARIES [PDF]

The Astrophysical Journal, 2014
Accepted for publication in ApJ ...
Rebecca G. Martin, Chris Nixon, Philip J. Armitage, Stephen H. Lubow, Daniel J. Price   +4 more
openaire   +4 more sources

Astroparticles from X-Ray Binary Coronae

The Astrophysical Journal Letters
The recent observation of high-energy neutrinos from the Galactic plane implies an abundant population of hadronic cosmic-ray sources in the Milky Way.
K. Fang, Francis Halzen, Sebastian Heinz, John S. Gallagher   +3 more
doaj   +1 more source

Neutron Stars in X-ray Binaries and their Environments

, 2017
Neutron stars in X-ray binary systems are fascinating objects that display a wide range of timing and spectral phenomena in the X-rays. Not only parameters of the neutron stars, like magnetic field strength and spin period evolve in their active binary ...
Paul, Biswajit
core   +1 more source

CCD Observations of X-Ray Binaries [PDF]

International Astronomical Union Colloquium, 1987
AbstractDuring two observation periods in 1984 and 1985 we monitored the faint optical counterparts of seven X-ray binaries with a CCD camera attached to the Cassegrain-focus of the 2.2 m telescope at Calar Alto , Spain. The observation periods were 1984, September 25–27 , and 1985, August 8–15.The transient sources 4U0042+32 and 4U0115+63 showed no ...
M. Gottwald, Uwe Graser, Helmut Steinle, Wolfgang Pietsch   +3 more
openaire   +3 more sources