Results 21 to 30 of about 8,476 (264)

Observations of X-ray Burst Sources [PDF]

open access: yesSymposium - 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.
openaire   +1 more source

Early optical observations of seven gamma-ray bursts in comparison to their gamma X-ray characteristics in the MSU MASTER Global Robotic Telescopes Net

open access: yesГеодинамика и тектонофизика, 2019
Seven gamma-ray bursts – GRB 130907A, GRB 140311B, GRB 140129B, GRB 160227A, GRB 120404A, GRB 110801A, and GRB 120811C were observed by the MSU MASTER (Mobile Astronomical System of TElescope Robots) Global Network.
V. M. Lipunov   +31 more
doaj   +1 more source

A Model for Bursting X-Ray Sources [PDF]

open access: yesHighlights of Astronomy, 1977
A model given by Henriksen and Chia (1972) for short duty cycle X-ray flare sources has been extended by Henriksen (1976), and applied to the recently discovered X-ray bursters. We use their notation here unless otherwise indicated. The model envisages a rapidly rotating magnetic white dwarf or neutron star located in a dense stream or cloud of gas ...
openaire   +1 more source

The evolution of X-ray bursts in the ‘Bursting Pulsar’ GRO J1744–28 [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2018
Accepted to MNRAS Aug 17 ...
J M C Court   +10 more
openaire   +5 more sources

Solar hard X-ray bursts [PDF]

open access: yesSolar Physics, 1985
The major results from SMM are presented as they relate to our understanding of the energy release and particle transportation processes that lead to the high-energy X-ray aspects of solar flares. Evidence is reviewed for a 152–158 day periodicity in various aspects of solar activity including the rate of occurrence of hard X-ray and gamma-ray flares ...
openaire   +1 more source

Search for thermonuclear burst oscillations in the Swift/BAT data set

open access: yesFrontiers in Astronomy and Space Sciences
This study comprehensively analyzes type I X-ray bursts observed by Swift/BAT from 2005 to April 2024 to search for X-ray burst oscillations (XBOs) in neutron star low-mass X-ray binaries.
Qing-Xin Li   +5 more
doaj   +1 more source

The Game of Life on a Magnetar Crust: From Gamma-Ray Flares to FRBs

open access: yesThe Astrophysical Journal Letters, 2023
This Letter presents a model to unify the diverse range of magnetar activity, through the building and release of elastic stress from the crust. A cellular automaton drives both local and global yielding of the crust, leading to braiding of coronal loops
S. K. Lander
doaj   +1 more source

Hydrogen-triggered X-Ray Bursts from SAX J1808.4−3658? The Onset of Nuclear Burning

open access: yesThe Astrophysical Journal, 2023
We present a study of weak, thermonuclear X-ray bursts from the accreting millisecond X-ray pulsar SAX J1808.4−3658. We focus on a burst observed with the Neutron Star Interior Composition Explorer on 2019 August 9, and describe a similar burst observed ...
Sierra Casten   +2 more
doaj   +1 more source

X-Ray Bursting Neutron Stars [PDF]

open access: yesSymposium - International Astronomical Union, 1987
The maximum peak luminosity of the X-ray bursts from a burster is most likely interpreted as the Eddington luminosity of a helium-rich envelope surrounding a neutron star. If this interpretation is true, we can obtain a relation between the mass and the radius of the neutron star in terms of the maximum effective temperature of bursts.
openaire   +1 more source

Monster Radiative Shocks in the Perturbed Magnetospheres of Neutron Stars

open access: yesThe Astrophysical Journal, 2023
Magnetospheres of neutron stars can be perturbed by star quakes, interaction in a binary system, or sudden collapse of the star. The perturbations are typically in the kilohertz band and excite magnetohydrodynamic waves.
Andrei M. Beloborodov
doaj   +1 more source

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