Results 21 to 30 of about 2,293,053 (380)
Optical precursors to X‐ray binary outbursts [PDF]
Disc instability models predict that for X-ray binaries in quiescence, there should be a brightening of the optical flux prior to an X-ray outburst.
D. Russell+21 more
semanticscholar +1 more source
Beam Pattern Evolution of Accreting X-Ray Pulsar 1A 0535+262 during Its 2020 Giant Outburst
We report on pulse profile decomposition analysis of bright transient X-ray pulsar 1A 0535+262 using broadband Insight-HXMT observations during a giant outburst of the source in 2020.
Y. F. Hu+9 more
doaj +1 more source
Detection of Reflection Features in the Neutron Star Low-mass X-Ray Binary Serpens X-1 with NICER [PDF]
We present Neutron Star Interior Composition Explorer (NICER) observations of the neutron star (NS) low-mass X-ray binary Serpens X-1 during the early mission phase in 2017.
R. Ludlam+21 more
semanticscholar +1 more source
The ultracompact nature of the black hole candidate X-ray binary 47 Tuc X9 [PDF]
47 Tuc X9 is a low-mass X-ray binary (LMXB) in the globular cluster 47 Tucanae, and was previously thought to be a cataclysmic variable. However, Miller-Jones et al.
A. Bahramian+11 more
semanticscholar +1 more source
Do X-ray binary spectral state transition luminosities vary? [PDF]
We tabulate the luminosities of the soft-to-hard state transitions of all X-ray binaries for which there exist good X-ray flux measurements at the time of the transition, good distance estimates, and good mass estimates for the compact star. We show that
T. Maccarone
semanticscholar +1 more source
23 pages, 1 figure, to appear in Nucl. Phys. A; updated to include discussion of astro-ph/0511247 which appeared after submission to NPA (v2)
K. E. Rehm, Hendrik Schatz
openaire +2 more sources
Be–X-ray binaries and candidates [PDF]
We present a compilative catalogue of Be/X-ray binaries and candidates in the Galaxy and in the Large and Small Magellanic Clouds. This catalogue contains 130 sources and provides information on names and spectral types of optical components, distances, spin characteristics of neutron stars, and on orbital and X-ray properties of binary systems.
N. V. Raguzova, Sergei Popov
openaire +3 more sources
Partial Accretion in the Propeller Stage of Low-mass X-Ray Binary Aql X–1 [PDF]
Aql X–1 is one of the most prolific low-mass X-ray binary transients (LMXBTs) showing outbursts almost annually. We present the results of our spectral analyses of Rossi X-Ray Timing Explorer/proportional counter-array observations of the 2000 and 2011 ...
C. Gungor+3 more
semanticscholar +1 more source
Why Do Black--Hole X-ray Binaries Tend to Be Transient? [PDF]
Black hole X-ray binaries are transient probably because their discs are subject to the same thermal-viscous instability which is present in dwarf nova binary systems.
Lasota, Jean-Pierre
core +3 more sources
X-ray observations of Be/X-ray binaries in the SMC [PDF]
10 pages, 7 figures, accepted for publication in A& ...
Wolfgang Pietsch, Frank Haberl
openaire +3 more sources