Results 81 to 90 of about 1,042,797 (116)
Constraints on the mass and radius of neutron stars from X-ray observations [PDF]
arXiv, 2015 This article gives a very brief introduction about measuring the mass and radius of neutron star from X-ray observations. The masses and radii of neutron stars can be determined from photospheric radius expansion bursts in low-mass X-ray binaries, X-ray pulse profile modeling in accreting X-ray pulsars, gravitational redshift measurement in low-mass X ...
arxiv
On the Apparent Lack of Be X-ray Binaries with Black Holes [PDF]
, 2009 In the Galaxy there are 64 Be X-ray binaries known to-date. Out of those, 42 host a neutron star, and for the reminder the nature of a companion is not known. None, so far, is known to host a black hole. There seems to be no apparent mechanism that would prevent formation or detection of Be stars with black holes.
arxiv +1 more source
High energy behaviour of Neutron Star Low Mass X-ray binary systems seen by INTEGRAL [PDF]
Proceedings of The Extreme sky: Sampling the Universe above 10 keV — PoS(extremesky2009), 2010 We report on the study of the high energy emission of Neutron Stars in Low Mass X-ray Binary systems performed with INTEGRAL. The X and Gamma behaviour of a selected sample of atoll sources has been monitored through the study of light curves in different energy bands, the construction of hardness-intesity diagrams, and extra ction of spectra to ...
Antonella Tarana +2 more
openaire +2 more sources
On the kinematics of the neutron star low mass X-ray binary Cen X-4 [PDF]
, 2005 We present the first determination of the proper motion of the neutron star low mass X-ray binary Cen X-4 measured from relative astrometry of the secondary star using optical images at different epochs.
J. Hern'andez +5 more
semanticscholar +1 more source
OAO1657-415 : A `Missing Link' in High Mass X-ray Binaries? [PDF]
arXiv, 2000 OAO1657-415 is only the seventh eclipsing X-ray pulsar known and therefore has the potential to yield only the seventh mass of a neutron star in an X-ray binary. Here we report photometric and spectroscopic observations of candidates for the optical counterpart to the system and identify a B6V or B5III star as a possible companion to the neutron star ...
arxiv
Does High-density or Mass Help Star Clusters Produce X-Ray Binaries in Star-forming Galaxies?
The Astrophysical Journal, 2019 Abstract It is now widely accepted that many X-ray binaries (XRBs) form in compact star clusters. Therefore, it follows that there may be a link between the properties of star clusters and the production of XRBs. We study the masses and densities of compact clusters with different ages found in the merging Antennae galaxies and in the ...
P. Johns Mulia, R. Chandar, B. Rangelov
openaire +2 more sources
THE AGES OF HIGH-MASS X-RAY BINARIES IN NGC 2403 AND NGC 300 [PDF]
, 2013 We have examined resolved stellar photometry from HST imaging surrounding 18 high-mass X-ray binary (HMXB) candidates in NGC 300 and NGC 2403 as determined from combined Chandra/HST analysis.
B. Williams +4 more
semanticscholar +1 more source
Probing the X-ray Variability of X-ray Binaries [PDF]
arXiv, 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 ...
arxiv
High-Mass X-Ray Binaries and OB Runaway Stars [PDF]
, 2004 L. Kaper, A. van der Meer, A. Tijani
openalex +1 more source
Neutron Stars and Black Holes in X-Ray Binaries [PDF]
arXiv, 1998 Galactic accretion driven stellar X-ray sources can be divided into groups in different ways. An important division, which covers almost all known X-ray binaries, can be made according to the mass of the donor star: high-mass X-ray binaries and low-mass X-ray binaries. Another distinction (partially overlapping with the previous one) can be made on the
arxiv