Results 1 to 10 of about 1,363 (263)
Binary stars are responsible for many unusual astrophysical phenomena, including some important explosive cosmic events. The stability criteria for rapid mass transfer and common-envelope evolution are fundamental to binary star evolution. They determine
Hongwei Ge +8 more
doaj +6 more sources
On Neutron Star Natal Kicks in High-mass X-Ray Binaries: Insights from Population Synthesis
The motion of neutron stars (NSs) in the Galaxy is largely dependent on natal kicks received by the NSs during supernova explosions. Thus, the measured peculiar velocities of NS high-mass X-ray binaries (HMXBs) provide valuable clues to natal kicks ...
Xiangyu Ivy Wang, Xiang-Dong Li
doaj +3 more sources
A TESS search for donor-star pulsations in high-mass X-ray binaries [PDF]
ABSTRACT Ground-based optical photometry of the counterparts of high-mass X-ray binaries (HMXBs) has revealed the presence of periodic modulations on time-scales of ∼0.3–0.5 d. More recent space-based observations (CoRoT and TESS) of OB and Be stars have shown that pulsations caused by p and g modes are common in early-type stars.
Gavin Ramsay +2 more
openaire +4 more sources
The evolution and masses of the neutron star and donor star in the high mass X-ray binary OAO 1657-415 [PDF]
We report near-infrared radial velocity measurements of the recently identified donor star in the high mass X-ray binary system OAO 1657-415 obtained in the H band using ISAAC on the VLT. Cross-correlation methods were employed to construct a radial velocity curve with a semi-amplitude of $22.1 \pm 3.5$ km s$^{-1}$.
Mason, A. B. +7 more
openaire +7 more sources
X-ray emission from star-forming galaxies - I. High-mass X-ray binaries [PDF]
23 pages, 14 figures, 5 tables, MNRAS - Accepted 2011 September ...
Mineo, S., Gilfanov, M., Sunyaev, R.
openaire +4 more sources
Spectral Energy Distributions of Southern Binary X-Ray Sources
The rapid variability of X-ray binaries (XRBs) produces a wide range of X-ray states that are linked to activity across the electromagnetic spectrum. It is particularly challenging to study a sample of sources large enough to include all types in their ...
John M. Dickey +7 more
doaj +1 more source
High-Mass X-Ray Binaries and OB Runaway Stars [PDF]
AbstractHigh-mass X-ray binaries (HMXBs) represent an important phase in the evolution of massive binary systems and provide fundamental information on the properties of the OB-star primaries and their compact secondaries (neutron star, black hole). Recent observations indicate that the neutron stars in some of these systems (Vela X-1, 4U 1700-37) are ...
Kaper, L. +2 more
openaire +2 more sources
Clumpy Wind Studies and the Nondetection of a Cyclotron Line in OAO 1657–415
Winds of massive stars are suspected to be inhomogeneous (or clumpy), which biases the measures of their mass-loss rates. In high-mass X-ray binaries (HMXBs), the compact object can be used as an orbiting X-ray point source to probe the wind and ...
Pragati Pradhan +13 more
doaj +1 more source
The High Mass X-ray binaries in star-forming galaxies [PDF]
AbstractThe high mass X-ray binaries (HMXBs) provide an exciting framework to investigate the evolution of massive stars and the processes behind binary evolution. HMXBs have shown to be good tracers of recent star formation in galaxies and might be important feedback sources at early stages of the Universe.
Artale, Celeste M. +3 more
openaire +2 more sources
MASSES OF NEUTRON STARS IN HIGH-MASS X-RAY BINARIES WITH OPTICAL ASTROMETRY [PDF]
Determining the type of matter that is inside a neutron star (NS) has been a long-standing goal of astrophysics. Despite this, most of the NS equations of state (EOS) that predict maximum masses in the range 1.4-2.8 solar masses are still viable. Most of the precise NS mass measurements that have been made to date show values close to 1.4 solar masses,
Tomsick, John A. +1 more
openaire +2 more sources

