Results 71 to 80 of about 52,761 (334)
Disk Instability in Wide Neutron Star Low‐Mass X‐Ray Binaries [PDF]
The Astrophysical Journal, 1998 Conditions for disk instability in low-mass X-ray binaries (LMXBs) have been recently considered with X-ray irradiation of the disk included. Conservative evolution was generally assumed, which, however, fails in wide LMXBs with a neutron star primary (NLMXBs).
X.-D. Li, Zhen-Ru Wang
openaire +1 more source
Insight-HXMT Detections of Hard X-Ray Tails in Scorpius X-1
The Astrophysical Journal, 2023 Using the observations of the high-energy detector of the Hard X-ray Modulation Telescope (Insight-HXMT) for Scorpius X-1 from 2017 to 2020, we search for hard X-ray tails in the X-ray spectra in ∼30–200 keV. The hard X-ray tails are found throughout the
G. Q. Ding +17 more
doaj +1 more source
Bursts, eclipses, dips and a refined position for the luminous low-mass X-ray binary in the globular cluster Terzan 6 [PDF]
, 2003 GRS 1747-312 is a bright transient X-ray source in the globular cluster Terzan 6 with quasi-periodic outbursts approximately every 4.5 months. We carried out 2-60 keV target-of-opportunity observations during eight outbursts with the Proportional Counter
J. Zand +12 more
semanticscholar +1 more source
A Light Redback Companion of PSR J1622–0315 and Irradiation Power in Spider Systems
The Astrophysical Journal, 2023 We report optical observations of the millisecond pulsar binary system PSR J1622–0315 with the Lulin 1 m telescope in Taiwan and the Lijiang 2.4 m telescope in China between 2019 and 2021.
Y. X. Jane Yap +2 more
doaj +1 more source
THE CASE FOR A LOW MASS BLACK HOLE IN THE LOW MASS X-RAY BINARY V1408 AQUILAE (= 4U 1957+115) [PDF]
, 2015 There are few confirmed black holes with a mass of less ∼ 4 M ⊙ ?> and no neutron stars with masses greater than ∼ 2 M ⊙ ?> , creating a gap in the observed distribution of compact star masses.
S. Gomez, P. Mason, E. L. Robinson
semanticscholar +1 more source
Excitation of Neutron Star f-mode in Low Mass X-ray Binaries [PDF]
Journal of Physics: Conference Series, 2006 Neutron Stars (NSs) present a host of pulsation modes. Only a few of them, however, is of relevance from the gravitational wave (GW) point of view. Among the various possible modes the pulsation energy is mostly stored in the f-mode in which the fluid parameters undergo the largest changes.
Odylio D. Aguiar +2 more
openaire +2 more sources
Advanced Engineering Materials, EarlyView.This study designs Ta–Mo–Cr–Ti–Al refractory high‐entropy alloys with a disordered body‐centered‐cubic A2 crystal structure aiming for improved ductility, lower density, and oxidation resistance. Four alloy compositions are identified by thermodynamic calculations.
Kateryna Khanchych +7 more
wiley +1 more source
Timing Spectroscopy of Quasi-Periodic Oscillations in the Low-Mass X-Ray Neutron Star Binaries [PDF]
The Astrophysical Journal, 1999 12 pages, 4 figures, accepted by ApJ ...
TITARCHUK, Lev +2 more
openaire +4 more sources
Advanced Engineering Materials, EarlyView.In this work, the grain boundary diffusion process is optimized to maximize heavy rare earth utilization by strategic magnetic hardening of areas in the magnet such as corners or edges that are highly susceptible to demagnetization, as demonstrated by finite element magnetostatics simulation on an internal permanent magnet, synchronous traction motor ...
Abdullatif Durgun +7 more
wiley +1 more source
Investigating the Ultracompact X-Ray Binary Candidate SLX 1735-269 with NICER and NuSTAR
The Astrophysical JournalWe present two simultaneous NICER and NuSTAR observations of the ultracompact X-ray binary (UCXB) candidate SLX 1735−269 while the source was in two different spectral states. Using various reflection modeling techniques, we find that xillverCO , a model
D. L. Moutard +10 more
doaj +1 more source