Results 21 to 30 of about 8,164 (262)
Oscillations during thermonuclear x-ray bursts [PDF]
Advances 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
Frontiers in Astronomy and Space SciencesThis 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
The 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]
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.
openaire +1 more source
Impulsive solar X-ray bursts [PDF]
The 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
The 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
Estimation of plasma parameters of X-pinch with time-resolved x-ray spectroscopy
Matter and Radiation at Extremes, 2023 We estimate the parameters of a Cu plasma generated by an X-pinch by comparing experimentally measured x-rays with synthetic data. A filtered absolute extreme ultraviolet diode array is used to measure time-resolved x-ray spectra with a spectral ...
Seunggi Ham +6 more
doaj +1 more source
Burst Detector X-Ray IIR [PDF]
, 1998 The Burst Detector X-Ray (BDX) instrument for the Block IIR series of Global Positioning System satellites is described. The BDX instrument can locate and characterize exoatmospheric nuclear detonations by using four sensors consisting of sets of filters over silicon diodes to detect x rays of various energies from the burst.
Higbie, P. R. +4 more
openaire +2 more sources
MAXI observations of long X-ray bursts [PDF]
Publications of the Astronomical Society of Japan, 2016 Abstract We report nine long X-ray bursts from neutron stars, detected with the Monitor of All-sky X-ray Image (MAXI). Some of these bursts lasted for hours, and hence are qualified as superbursts, which are prolonged thermonuclear flashes on neutron stars and are relatively rare events.
Serino, Motoko +7 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.A combinatorial library of dual‐functional antiviral oligomers incorporating N‐halamine and quaternary ammonium functionalities is developed for long‐lasting antiviral activity. The lead materials exhibit rapid and durable antiviral activity against SARS‐CoV‐2 variants and influenza H1N1, with 4 to 5 log reduction in viral copies at 5 mg mL−1 ...
Eid Nassar‐Marjiya +14 more
wiley +1 more source