Results 51 to 60 of about 596,755 (352)

Extending the Short Gamma-Ray Burst Population from Subthreshold Triggers in Fermi/GBM and GECAM Data and Its Implications

The Astrophysical Journal Letters
Detection of short gamma-ray bursts (SGRBs) is critically important for the research of compact object mergers and multimessenger astrophysics, but a significant part of SGRBs fall below the trigger threshold of GRB detectors, and thus are often missed ...
Ce Cai, Shao-Lin Xiong, Yan-Qiu Zhang, Jin-Peng Zhang, Ping Wang, Yao-Guang Zheng, Shi-Jie Zheng, Shuo Xiao, Hao-Xuan Guo, Jia-Cong Liu, Yang-Zhao Ren, Wen-Jun Tan, Chen-Wei Wang, Yue Wang, Sheng-Lun Xie, Wang-Chen Xue, Zheng-Hang Yu, Peng Zhang, Wen-Long Zhang, Chao Zheng, Jia-Wei Luo, Shuai Zhang, Li-Ming Song, Shuang-Nan Zhang   +23 more
doaj   +1 more source

Prompt gamma-ray methods for industrial process evaluation: A simulation study

Nukleonika, 2022
Radioisotope applications in industrial process inspection and evaluation using gamma-ray emitters provide otherwise unavailable information. Offering alternative gamma-ray sources can support the technology by complementing sources’ availability and ...
Mohammed Mohammed Siddig H., Alhawsawi Abdulsalam, Aljohani M. S., Damoom Mohammed M., Banoqitah Essam M., Elmoujarkach Ezzat   +5 more
doaj   +1 more source

Fermi LAT measurements of diffuse gamma-ray emission: results at the first-year milestone

, 2010
For more than one year the Fermi Large Area Telescope has been surveying the gamma-ray sky from 20 MeV to more than 300 GeV with unprecedented statistics and angular resolution.
Tibaldo, Luigi
core   +1 more source

Short Gamma Ray Bursts as possible electromagnetic counterpart of coalescing binary systems [PDF]

, 2010
Coalescing binary systems, consisting of two collapsed objects, are among the most promising sources of high frequency gravitational waves signals detectable, in principle, by ground-based interferometers.
A. Abramovici, A. Perna, A. Virey, A.M. Soderberg, B. Caron, C. Kouveliotou, C.L. Fryer, D. Eichler, D. Malesani, D.B. Fox, E. Berger, E. Komatsu, E. Nakar, E. Nakar, E.S. Phinney, I. De Martino, J. Abadie, J. Hjorth, J.K. Cannizzo, K. Belczynski, K. Belczynski, M. Burgay, M. De Laurentis, M. Formisano, M. Maggiore, N. Gehrels, P. Mészáros, R. Chapman, R. Narayan, R. Narayan, R.C. Duncan, S. Campana, S. Capozziello, S. Capozziello, S.E. Woosley, T. Bulik, T.J. Galama, V. Kalogera, W.H. Lee   +38 more
core   +1 more source

Structural and functional characterization of chitinase from carnivorous plant Drosera adelae

FEBS Open Bio, EarlyView.
A class I chitinase from the carnivorous plant Drosera adelae was expressed and purified using a yeast system, revealing high enzymatic activity. Structural analyses of the catalytic and chitin‐binding domains identified key tyrosine residues involved in substrate binding, offering insights into the enzyme's adaptation for insect digestion.
Kazunari Yoneda, Yuki Naruse, Yusaku Suizu, Tomohiro Araki, Yoshikazu Hoshi, Haruhiko Sakuraba, Junji Hayashi, Toshihisa Ohshima   +7 more
wiley   +1 more source

The Case of the Missing Very High-energy Gamma-Ray Bursts: A Retrospective Study of Swift Gamma-Ray Bursts with Imaging Atmospheric Cherenkov Telescopes

The Astrophysical Journal
Gamma-ray bursts (GRBs) are particle acceleration sites that can emit photons in the very high-energy (VHE) domain through nonthermal processes. From 2004 until 2018, the current generation of Imaging Atmospheric Cherenkov Telescopes (IACTs) did not ...
H. Ashkar, A. Sangaré, S. Fegan, J. Damascene Mbarubucyeye, E. Ruiz-Velasco, S. J. Zhu   +5 more
doaj   +1 more source

The Fermi Gamma-ray Burst Monitor: Results from the first two years [PDF]

, 2011
In the first two years since the launch of the Fermi Observatory, the Gamma-ray Burst Monitor (GBM) has detected over 500 Gamma-Ray Bursts (GRBs), of which 18 were confidently detected by the Large Area Telescope (LAT) above 100 MeV.
BISSALDI E., on behalf of the Fermi GBM Collaboration   +1 more
core   +2 more sources

Overview of molecular signatures of senescence and associated resources: pros and cons

FEBS Open Bio, EarlyView.
Cells can enter a stress response state termed cellular senescence that is involved in various diseases and aging. Detecting these cells is challenging due to the lack of universal biomarkers. This review presents the current state of senescence identification, from biomarkers to molecular signatures, compares tools and approaches, and highlights ...
Orestis A. Ntintas, Sylvia Vagena, Pavlos Pantelis, Giorgos Theocharous, Russel Petty, Konstantinos Evangelou, Vassilis G. Gorgoulis   +6 more
wiley   +1 more source

Imaging and Spectral Fitting of Bright Gamma-Ray Sources with the COSI Balloon Payload

The Astrophysical Journal
The Compton Spectrometer and Imager balloon payload (COSI-Balloon) is a wide field-of-view Compton gamma-ray telescope that operates in the 0.2–5 MeV bandpass.
Jarred M. Roberts, Steven Boggs, Thomas Siegert, John A. Tomsick, Marco Ajello, Peter von Ballmoos, Jacqueline Beechert, Floriane Cangemi, Savitri Gallego, Pierre Jean, Chris Karwin, Carolyn Kierans, Hadar Lazar, Alex Lowell, Israel Martinez Castellanos, Sean Pike, Clio Sleator, Yong Sheng, Hiroki Yoneda, Andreas Zoglauer   +19 more
doaj   +1 more source

Compton degradation of gamma-ray line emission from radioactive isotopes in the classical nova V2491 Cygni

, 2010
To account for the non-thermal emission from the classical nova V2491 Cygni, we perform a series of numerical calculations of radiative transfer of \gamma-ray photons from the radioactive isotope $^{22}$Na in the matter ejected from a white dwarf.
Coc, Hachisu, Helton, Ibarra, Ibarra, Iliadis, Iyudin, Jose, Kuulkers, Makino, Makino, Munari, Nakano, Sallaska, Starrfield, Sunyaev, Suzuki, Takei, Tomov, Tomov, Wanajo, Weiss   +21 more
core   +1 more source