Search for intermittent X-ray pulsations from neutron stars in low-mass X-ray binaries [PDF]
AbstractWe present the results of our extensive binary orbital motion corrected pulsation search for 13 low-mass X-ray binaries. These selected sources exhibit burst oscillations in X-rays with frequencies ranging from 45 to 1 122 Hz and have a binary orbital period varying from 2.1 to 18.9 h.
Yunus Emre Bahar +2 more
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Low-Mass X-Ray Binaries with Strange Quark Stars [PDF]
Strange quark stars (SSs) may originate from accreting neutron stars (NSs) in low-mass X-ray binaries (LMXBs). Assuming that conversion of NS matter to SSs occurs when the core density of accreting NS reaches to the density of quark deconfinement, $\sim 5 _0$, where $ _0\sim 2.7\times 10^{14}$g cm$^{-3}$ is nuclear saturation density, we investigate
Chunhua Zhu +3 more
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Accreting Neutron Stars in Low-Mass X-Ray Binary Systems [PDF]
22 pages, 7 figures, updated list of sources and references, to appear in "Short-period Binary Stars: Observation, Analyses, and Results", eds. E.F. Milone, D.A. Leahy, and D. Hobill (Dordrecht: Springer, http://www.springerlink.com)
Frederick K. Lamb, Stratos Boutloukos
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Magnetic Inclination Evolution of Accreting Neutron Stars in Intermediate/Low-mass X-Ray Binaries [PDF]
The magnetic inclination angle χ , namely the angle between the spin and magnetic axes of a neutron star, plays a vital role in its observational characteristics. However, there are few systematic investigations of its long-term evolution, especially for
Hao-ran Yang, Xiang-dong Li
doaj +4 more sources
The secondary stars in cataclysmic variables and low-mass X-ray binaries [PDF]
We critically re-examine the available data on the spectral types, masses and radii of the secondary stars in cataclysmic variables (CVs) and low-mass X-ray binaries (LMXBs), using the new catalogue of Ritter & Kolb (1998) as a starting point. We find there are 55 reliable spectral type determinations and only 14 reliable mass determinations of CV ...
D. Smith, V. S. Dhillon
+7 more sources
Compact Stars in low-mass X-ray binaries [PDF]
We propose a model for compact stars in low-mass X-ray binaries(LMXBs) namely KS 1731-260, EXO 1745-248 and 4U 1608-52. Here we investigate the physical phenomena of a compact star in the LMXBs. Using our model, we have calculated central density, surface density, mass(M) and red-shift for the above mentioned compact stars, which is very much ...
Sk. Monowar Hossein +3 more
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Quiescent thermal emission from neutron stars in low-mass X-ray binaries [PDF]
Context. We monitored the quiescent thermal emission from neutron stars in low-mass X-ray binaries after active periods of intense activity in X-rays (outbursts). Aims. The theoretical modeling of the thermal relaxation of the neutron star crust may be used to establish constraints on the crust composition and transport properties, depending on the ...
A. Turlione, D. N. Aguilera, J. A. Pons
+6 more sources
Polarization properties of weakly magnetized neutron stars in low-mass X-ray binaries [PDF]
ABSTRACT X-ray polarimetry missions like Imaging X-ray Polarimetry Explorer will be able to measure for the first time the polarization properties of accreting, weakly magnetized neutron stars in low-mass X-ray binaries. In this work, we present simulations of the expected X-ray polarized signal, including the coronal emission for ...
Andrea Gnarini +7 more
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Rapid X-ray variability of neutron stars in low-mass binary systems [PDF]
The dramatic discovery with the Rossi X-Ray Timing Explorer satellite of remarkably coherent $\sim$300--1200 Hz oscillations in the X-ray brightness of some sixteen neutron stars in low-mass binary systems has spurred theoretical modeling of these oscillations and investigation of their implications for the neutron stars and accretion flows in these ...
Frederick K. Lamb +2 more
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Accretion Disk Boundary Layers around Neutron Stars: X‐Ray Production in Low‐Mass X‐Ray Binaries [PDF]
We present solutions for the structure of the boundary layer where the accretion disk meets the neutron star, which is expected to be the dominant source of high-energy radiation in low-mass X-ray binaries which contain weakly magnetized accreting neutron stars.
Robert Popham, Rashid Sunyaev
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