Results 121 to 130 of about 6,416,221 (303)
On the nature of photospheric oscillations in strong X-ray bursts
The Astrophysical Journal, 1994 A possible sound origin for the photospheric oscillations in the X--ray bursting sources 1608-522 and 2127+119 is suggested. It is shown that standing sound waves in an expanding spherical envelope can have periods very close to the observed ones. The quite large ratio, $\sim$ 10, of the periods in the two sources is explained in terms of different ...
LAPIDUS I. +2 more
openaire +3 more sources
Advanced Science, EarlyView.By overcoming the fixed‐path limitations of conventional machine learning, a heterogeneous graph neural network fundamentally reconstructs material data representation. Integrating variable processing sequences with intrinsic elemental features, this framework enables exploratory optimization across high‐dimensional spaces.
Jie Yin +12 more
wiley +1 more source
X-ray bursts from GRS 1915+105 observed with IXAE
, 1999 The light curves of the galactic superluminal X-ray transient source GRS1915+105 observed with the pointed proportional counters (PPC) of Indian X-ray Astronomy Experiment (IXAE)on board IRS-P3 have revealed the presence of four types of intense X-ray ...
Kasturirangan, K. +6 more
core
A Burst Chasing X-ray Polarimeter [PDF]
, 2007 This viewgraph presentation reviews the rationale, design, and importance of an X-Ray Polarimeter. There is a brief discussion of Gamma Ray Bursts, followed by a review of the theories of Gamma-Ray Bursts Polarization.
Hill, Joanne
core
, 2012 This thesis presents observational and theoretical studies of the Gamma-ray bursts. Gamma-ray bursts are thought to be associated with events of violent gravitational collapse either at the end of the evolution of massive stars or after merging of ...
Savchenko, Volodymyr
core +1 more source
Early multi-wavelength emission from gamma-ray bursts : from gamma-ray to X-ray
, 2006 The study of the early high-energy emission from both long and short gamma-ray bursts (GRBs) has been revolutionized by the Swift mission. The rapid response of Swift shows that the non-thermal x-ray emission transitions smoothly from the prompt phase ...
Michael R. Goad (7580096) +3 more
core +4 more sources
Harnessing Phase Separation for the Development of High‐Performance Hydrogels
Advanced Science, EarlyView.ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao +3 more
wiley +1 more source
Hard X-ray imaging from Explorer [PDF]
, 1981 Coded aperture X-ray detectors were applied to obtain large increases in sensitivity as well as angular resolution. A hard X-ray coded aperture detector concept is described which enables very high sensitivity studies persistent hard X-ray sources and ...
Grindlay, J. E., Murray, S. S.
core
Dark Gamma-Ray Bursts in the Swift Era
, 2009 We propose a new method for the classification of optically dark gamma‐ray bursts (GRBs), based on the X‐ray and optical‐to‐X‐ray spectral indices of GRB afterglows, and utilizing the spectral capabilities of Swift.
Rol, E. +18 more
core +1 more source
Advanced Science, EarlyView.Local stress concentration disrupts metabolic homeostasis and induces inflammation in the nucleus pulposus (NP), thereby accelerating intervertebral disc degeneration (IDD). A biomimetic HA/ChS hydrogel millimeter sphere (ChS@HM) is developed to enable synergistic stress dispersion and sustained hydration lubrication.
Ang Li +4 more
wiley +1 more source