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Statistical Properties of X-ray Flares in Gamma-ray Bursts
Universe, 2022 X-ray flares are frequently detected in the X-ray afterglow light curves and are highly correlated with the prompt emission of gamma-ray bursts (GRBs). We compile a comprehensive sample of X-ray flares up to 2021 April, comprising 697 flares. We classify
Yong-Rui Shi +4 more
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The Astrophysical Journal, 2023 We present temporal and time-resolved spectral analyses of all the thermonuclear X-ray bursts observed from the neutron star low-mass X-ray binary 4U 1728−34 with NICER from 2017 June to 2019 September.
Z. Funda Bostancı +14 more
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X-Ray Bursts of Nuclear Origin [PDF]
Highlights of Astronomy, 1977 The fate of nuclear energy carried by matter accreted onto a neutron star was considered e.g. by Rosenbluth et al. (1973). They examined pycnonuclear reactions on an originally cold star, and found that the whole star is thereby heated up to 106−107 °K. The thermonuclear reactions that can be ignited then, have been studied by Hansen and Van Horn (1975)
L. Maraschi, A. Cavaliere
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Investigating Time Variability of X-Ray Absorption in Swift GRBs
The Astrophysical Journal, 2023 The existence of excess absorption in the X-ray spectra of GRBs is well known, but the primary location of the absorbing material is still uncertain. To gain more knowledge about this, we have performed a time-resolved analysis of the X-ray spectra of ...
Vlasta Valan +2 more
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Accretion rates in X-ray bursting sources [PDF]
The Astrophysical Journal, 1994 21 pages ...
LAPIDUS I. +2 more
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The Astrophysical Journal, 2023 The Space-based multiband astronomical Variableonboard computing resources. This Object Monitor (SVOM) is a Sino–French space mission targeting high-energy transient astrophysical objects such as gamma-ray bursts.
Shaymaa Hussein +5 more
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Detection of X-Ray Bursts in Astronomical Time Series: The Burst of GRO J1744-28 as an Example
The Astrophysical Journal, 2023 To automatically, accurately, and quickly detect local changes in time-series data continuously emitted by X-ray sources, an autoencoder-based unsupervised learning anomaly detection method is proposed.
Hongyang Zhao +4 more
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X-ray burst ignition location on the surface of accreting X-ray pulsars: can bursts preferentially ignite at the hotspot? [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT Hotspots on the surface of accreting neutron stars have been directly observed via pulsations in the light curves of X-ray pulsars. They are thought to occur due to magnetic channelling of the accreted fuel to the neutron star magnetic poles.
A J Goodwin +4 more
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The Thermonuclear X-Ray Bursts of 4U 1730–22 [PDF]
The Astrophysical Journal, 2022 Abstract We present observations of the historic transient 4U 1730–22 as observed with the Neutron Star Interior Composition Explorer (NICER). After remaining in quiescence since its 1972 discovery, this X-ray binary showed renewed outburst activity in 2021 and 2022.
Peter Bult +13 more
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Observations of X-ray Burst Sources [PDF]
Symposium - International Astronomical Union, 1987 Recent observational results on X-ray bursts and burst sources are reviewed. Two distinct types of bursts, Type I and Type II bursts, are discussed in relation to the mass and radius of neutron stars and to the problems of unusual mass accretion in some burst sources.
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