Results 71 to 80 of about 2,162,814 (284)
Cosmography by gamma ray bursts [PDF]
Astronomy & Astrophysics, 2008 Summary: Aims. Relations connecting gamma ray burst quantities can be used to constrain cosmographic parameters of the Hubble law at medium-high redshifts. Methods. We consider a sample of 27 gamma ray bursts to construct the luminosity distance to redshift relation and derive the values of the parameters \(q_{0}, j_{0}\), and \(s_{0}\).
CAPOZZIELLO, SALVATORE, L. Izzo
openaire +3 more sources
Advanced Science, EarlyView.A nano‐confined radical anion acts as a photothermal immunogenic amplifier. Kinetically stabilized nanoparticles couple high near‐infrared‐II (NIR‐II) photothermal efficacy with glutathione (GSH) depletion to boost reactive oxygen species (ROS) and immunogenic cell death (ICD).
Mengxin Mu +9 more
wiley +1 more source
The Redshift Distribution of Einstein Probe Transients Supports Their Relation to Gamma-Ray Bursts
The Astrophysical Journal LettersThe launch of the Einstein Probe unleashed a new era of high-energy transient discovery in the largely unexplored soft X-ray band. The Einstein Probe has detected a significant number of fast X-ray transients that display no gamma-ray emission ...
Brendan O’Connor +11 more
doaj +1 more source
Gamma-ray Bursts and Afterglow [PDF]
Symposium - International Astronomical Union, 2000 The origin of GRBs has been a mystery for almost 30 years. Their sources emit a huge amount of energy on short time scales, and the process involves extreme relativistic motion with a bulk Lorentz factor of at least a few hundred. In the last two years, “afterglow” emission in X-ray, optical, IR, and radio was detected. The afterglow can be measured up
openaire +3 more sources
On the difference between the short and long gamma-ray bursts [PDF]
, 2003 We argue that the distributions of both the intrinsic fluence and the intrinsic duration of the gamma-ray emission in gamma-ray bursts from the BATSE sample are well represented by log-normal distributions, in which the intrinsic dispersion is much ...
Bagoly, Zsolt +19 more
core +1 more source
Advanced Science, EarlyView.A DLN dataset was built to analyze MABS composition versus in vitro/in vivo osteogenesis and angiogenesis. An MLP neural network, taking BG morphological parameters as input, extracts bioactive features from these datasets. A rabbit tibial defect model then validates 4D‐printed MABS for adaptability and bone regeneration in critical defects.
Xiongjie Liang +12 more
wiley +1 more source
The nature of “dark” gamma-ray bursts [PDF]
Astronomy & Astrophysics, 2010 9 pages, 6 figs, A&A (accepted)
J. Greiner +16 more
openaire +6 more sources
Advanced Science, EarlyView.A NIR‐II light‐activatable thermoelectric nanoreactor converts surface‐bound Cu2+ into bioactive Cu+ via directed electron flow. This spatiotemporally controlled reduction triggers potent cuproptosis and immunogenic cell death, eradicating primary tumors and, together with aPD‐1 therapy, suppressing metastases while establishing durable immune memory ...
Boyu Yuan +10 more
wiley +1 more source
Time-averaging Polarimetric and Spectral Properties of Gamma-Ray Bursts
The Astrophysical Journal Supplement SeriesThe composition and radiation mechanism of gamma-ray bursts (GRBs) within jets continue to be hotly debated. Investigating the joint polarimetric and spectral properties is crucial for understanding the composition and radiation mechanism of GRBs ...
Liang Li, Soroush Shakeri
doaj +1 more source
Cosmology with gamma-ray bursts
Astronomical and Astrophysical Transactions, 2022 Gamma-ray bursts constitute one of the most fascinating and relevant phenomena in modern science, with strong implications for several fields of astrophysics, cosmology and fundamental physics. In this short review, I focus on the prospective key-role of GRBs for cosmology. Indeed, the huge luminosity, the redshift distribution extending at least up
openaire +2 more sources