Results 21 to 30 of about 22,514,851 (295)
MASSES OF NEUTRON STARS IN HIGH-MASS X-RAY BINARIES WITH OPTICAL ASTROMETRY [PDF]
The Astrophysical Journal, 2010 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
Early neutron star evolution in high-mass X-ray binaries [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT The application of standard accretion theory to observations of X-ray binaries provides valuable insights into neutron star (NS) properties, such as their spin period and magnetic field. However, most studies concentrate on relatively old systems, where the NS is in its late propeller, accretor, or nearly spin equilibrium phase.
F Haberl +4 more
openaire +5 more sources
Feeding Neutron Stars in High-Mass X-ray Binaries [PDF]
Proceedings of the International Astronomical Union, 2012 AbstractWe suggest that the Be/X-ray binary SXP 1062 and the supergiant fast X-ray transient AX J1841.0-0536 belong to accreting magnetars and anti-magnetars, respectively.
L. Fu, Z. Zhang, X.-D. Li
openaire +1 more source
Evolution of neutron stars in high-mass X-ray binaries [PDF]
Monthly Notices of the Royal Astronomical Society, 1998 We consider the evolution of neutron stars during the X-ray phase of high-mass binaries. Calculationsareperformedassumingacrustal originofthemagneticfield.Astrongwindfrom the companion can significantly influence the magnetic and spin behaviour of a neutron star even during the main-sequence life of the companion.
V. Urpin, D. Konenkov, U. Geppert
openaire +1 more source
The Spin-down Accretion Regime of Galactic Ultraluminous X-Ray Pulsar Swift J0243.6+6124
The Astrophysical Journal, 2023 The relatively high fluxes of the Galactic ultraluminous X-ray pulsar Swift J0243 allow a detailed study of its spin-down regime in the quiescent state for the first time.
Jiren Liu, Long Ji, Mingyu Ge
doaj +1 more source
Constraints to neutron-star kicks in high-mass X-ray binaries withGaiaEDR3
Astronomy & Astrophysics, 2022 Context.All neutron star progenitors in neutron-star high-mass X-ray binaries (NS HMXBs) undergo a supernova event that may lead to a significant natal kick impacting the motion of the whole binary system. The space observatoryGaiaperforms a deep optical survey with exquisite astrometric accuracy, for both position and proper motions, that can be used ...
Francis Fortin +4 more
openaire +4 more sources
Multiwavelength Characterization of the High-mass X-Ray Binary Population of M33
The Astrophysical Journal, 2023 We present multiwavelength characterization of 65 high-mass X-ray binary (HMXB) candidates in M33. We use the Chandra ACIS survey of M33 (ChASeM33) catalog to select hard X-ray point sources that are spatially coincident with UV-bright point-source ...
Margaret Lazzarini +14 more
doaj +1 more source
The masses of the neutron and donor star in the high-mass X-ray binary IGR J18027-2016 [PDF]
Astronomy & Astrophysics, 2011 We report near-infrared observations of the supergiant donor to the eclipsing high mass X-ray binary pulsar IGR J18027-2016. We aim to determine its spectral type and measure its radial velocity curve and hence determine the stellar masses of the components.
Mason, A. B. +4 more
openaire +4 more sources
Simulations of X-ray bursts and superbursts [PDF]
, 2015 Observations of neutron star in binary systems provide powerful constrains on the physics at the surface of neutron stars. During the accretion of matter from the companion star, periodic nuclear explosion are triggered in the outer layers of the neutron
Fehlmann, Sofie
core +1 more source
The Astrophysical Journal, 2023 Gamma-ray binary systems, a subclass of high-mass X-ray binaries, show nonthermal emissions from radio to TeV. While efficient electron acceleration is considered to take place in them, the nature of the acceleration mechanism and the physical ...
Hiroki Yoneda +7 more
doaj +1 more source