Results 11 to 20 of about 2,221 (210)
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
openaire +7 more sources
A Model for Bursting X-Ray Sources [PDF]
Highlights 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
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
The evolution of X-ray bursts in the ‘Bursting Pulsar’ GRO J1744–28 [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 Accepted to MNRAS Aug 17 ...
J M C Court +10 more
openaire +5 more sources
Solar 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
X-Ray Bursting Neutron Stars [PDF]
Symposium - 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
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
Spectra of the Expansion Stage of X‐Ray Bursts [PDF]
The Astrophysical Journal, 2002 31 pages, 4 figures, accepted by the Astrophysical ...
Shaposhnikov, Nickolai, Titarchuk, Lev
openaire +2 more sources
Advanced Functional Materials, EarlyView.A swelling‐programmed micropatterned hydrogel guides adherent cells through a controlled transition from cell–matrix anchoring to cadherin‐mediated cell–cell compaction, enabling rapid assembly of high‐viability spheroids with defined size and morphology.
Han Gyeol Nam +8 more
wiley +1 more source
Advanced Functional Materials, EarlyView.A shape‐memory microneedle system enables reproductive hormone therapy through a single transdermal insertion. The X‐shaped device sustains follicle‐stimulating hormone release for three days, and mild heating restores the O shape to trigger burst human chorionic gonadotropin release.
Sungwoo Cho +8 more
wiley +1 more source