Results 21 to 30 of about 97,243 (246)

Reanalysis of the X-Ray-burst-associated FRB 200428 with Insight-HXMT Observations

open access: yesThe Astrophysical Journal, 2023
A double-peak X-ray burst from the Galactic magnetar SGR J1935+2154 was discovered to be associated with the two radio pulses of FRB 200428 separated by 28.97 ± 0.02 ms.
M. Y. Ge   +17 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

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

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

Oscillations during thermonuclear x-ray bursts [PDF]

open access: yesAdvances in Space Research, 2001
10 pages, 5 figures, accepted for publication in Advances in Space Research; invited talk at the 33rd COSPAR Scientific Assembly, Warsaw, Poland, July ...
openaire   +2 more sources

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

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

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

Impulsive solar X-ray bursts [PDF]

open access: yesThe Astrophysical Journal, 1978
A set of 22 simple, impulsive solar flares, identified in the OSO-5 hard X-ray data, were analyzed together with coincident microwave and meterwave radio observations. The rise times and fall times of the X-ray bursts are found to be highly correlated and effectively equal, strongly suggesting a flare energizing mechanism that is reversible.
C. J. Crannell   +4 more
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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