Results 91 to 100 of about 213,100 (298)

GRB Progenitor Classification from Gamma-Ray Burst Prompt and Afterglow Observations

The Astrophysical Journal
Using an established classification technique, we leverage standard observations and analyses to predict the progenitors of gamma-ray bursts (GRBs). This technique, utilizing support vector machine statistics, provides a more nuanced prediction than the ...
P. Nuessle, J. L. Racusin, N. E. White
doaj   +1 more source

The Long and the Short of Gamma-Ray Bursts [PDF]

Astrophys.J. 471 (1996) 915, 1995
We report evidence from the 3B Catalogue that long ($T_{90} > 10$ s) and short ($T_{90} < 10$ s) gamma-ray bursts represent distinct source populations. Their spatial distributions are significantly different, with long bursts having $\langle V/V_{max} \rangle = 0.282 \pm 0.014$ but short bursts having $\langle V/V_{max} \rangle = 0.385 \pm 0.019 ...
arxiv   +1 more source

Physical Processes Shaping Gamma-Ray Burst X-Ray Afterglow Light Curves: Theoretical Implications from the Swift X-Ray Telescope Observations [PDF]

, 2005
With the successful launch of the Swift Gamma-Ray Burst Explorer, a rich trove of early X-ray afterglow data has been collected by its onboard X-Ray Telescope (XRT).
Bing Zhang, Yizhong Fan, Yizhong Fan, J. Dyks, S. Kobayashi, S. Kobayashi, P. Mészáros, D. Burrows, J. Nousek, N. Gehrels   +9 more
semanticscholar   +1 more source

Fermi-LAT Observations of the Gamma-Ray Burst GRB 130427A [PDF]

Science, 2013
Bright Lights Gamma-ray bursts (GRBs), bright flashes of gamma-ray light, are thought to be associated with the collapse of massive stars. GRB 130427A was detected on 27 April 2013, and it had the longest gamma-ray duration and one of the largest ...
M. Ackermann, M. Ajello, K. Asano, W. Atwood, M. Axelsson, L. Baldini, J. Ballet, G. Barbiellini, M. Baring, D. Bastieri, K. Bechtol, R. Bellazzini, E. Bissaldi, E. Bonamente, J. Bregeon, M. Brigida, P. Bruel, R. Buehler, J. Burgess, S. Buson, G. Caliandro, R. Cameron, P. Caraveo, C. Cecchi, V. Chaplin, E. Charles, A. Chekhtman, C. C. Cheung, J. Chiang, G. Chiaro, S. Ciprini, R. Claus, W. Cleveland, J. Cohen-Tanugi, A. Collazzi, L. Cominsky, V. Connaughton, J. Conrad, S. Cutini, F. D’Ammando, A. De Angelis, M. Deklotz, F. de Palma, C. Dermer, R. Desiante, A. Diekmann, L. Di Venere, P. Drell, A. Drlica-Wagner, C. Favuzzi, S. Fegan, E. Ferrara, J. Finke, G. Fitzpatrick, W. Focke, A. Franckowiak, Y. Fukazawa, S. Funk, P. Fusco, F. Gargano, N. Gehrels, S. Germani, M. Gibby, N. Giglietto, M. Giles, F. Giordano, M. Giroletti, G. Godfrey, J. Granot, I. Grenier, J. Grove, D. Gruber, S. Guiriec, D. Hadasch, Y. Hanabata, A. Harding, M. Hayashida, E. Hays, D. Horan, R. Hughes, Y. Inoue, T. Jogler, G. Jóhannesson, W. Johnson, T. Kawano, J. Knödlseder, D. Kocevski, M. Kuss, J. Lande, S. Larsson, L. Latronico, F. Longo, F. Loparco, M. Lovellette, P. Lubrano, M. Mayer, M. Mazziotta, J. Mcenery, P. Michelson, T. Mizuno, A. Moiseev, M. Monzani, E. Moretti, A. Morselli, I. Moskalenko, S. Murgia, R. Nemmen, É. Nuss, M. Ohno, T. Ohsugi, A. Okumura, N. Omodei, M. Orienti, D. Paneque, V. Pelassa, J. Perkins, M. Pesce-Rollins, V. Petrosian, F. Piron, G. Pivato, T. Porter, J. Racusin, S. Rainò, R. Rando, M. Razzano, S. Razzaque, A. Reimer, O. Reimer, S. Ritz, M. Roth, F. Ryde, A. Sartori, P. Parkinson, J. Scargle, A. Schulz, C. Sgro’, E. Siskind, E. Sonbaş, G. Spandre, P. Spinelli, H. Tajima, H. Takahashi, J. Thayer, J. Thayer, D. Thompson, L. Tibaldo, M. Tinivella, D. Torres, G. Tosti, E. Troja, T. Usher, J. Vandenbroucke, V. Vasileiou, G. Vianello, V. Vitale, B. Winer, K. Wood, R. Yamazaki, G. Younes, H.-F. Yu, S. Zhu, P. N. Bhat, M. Briggs, D. Byrne, S. Foley, A. Goldstein, P. Jenke, R. Kippen, C. Kouveliotou, S. McBreen, C. Meegan, W. Paciesas, R. Preece, A. Rau, D. Tierney, A. J. van der Horst, A. von Kienlin, C. Wilson-Hodge, S. Xiong, G. Cusumano, V. La Parola, J. Cummings   +181 more
semanticscholar   +1 more source

Leveraging Grain Boundary Effects for Nanostructured Electrode Layers in Symmetric Solid Oxide Fuel Cells

Advanced Materials Interfaces, EarlyView.
Nanocrystalline thin‐films of lanthanum chromite exhibit extraordinary properties of fast oxygen kinetics. These properties are due to the peculiar chemistry of grain boundaries and can be harnessed for fabricating symmetric electrochemical devices with self‐healing properties. Abstract While grain boundary engineering is attracting great interest as a
Federico Baiutti, Francesco Chiabrera, Marlene Anzengruber, Kosova Kreka, Juande Sirvent, Lluis Yedra, Fjorelo Buzi, Macej Oskar Liedke, Andrea Cavallaro, Albert Carmona Zuazo, Sonia Estradé, Maik Butterling, Eric Hirschmann, Andreas Wagner, Ainara Aguadero, Francisca Peiró, Albert Tarancon   +16 more
wiley   +1 more source

Afterglow Polarization from Off-axis Gamma-Ray Burst Jets

The Astrophysical Journal, 2023
As we further our studies on gamma-ray bursts (GRBs), via both theoretical models and observational tools, more and more options begin to open for exploration of its physical properties.
A. C. Caligula do E. S. Pedreira, N. Fraija, A. Galvan-Gamez, B. Betancourt Kamenetskaia, P. Veres, M. G. Dainotti, S. Dichiara, R. L. Becerra   +7 more
doaj   +1 more source

Cosmological effects on the observed flux and fluence distributions of gamma-ray bursts: Are the most distant bursts in general the faintest ones? [PDF]

, 2011
Several claims have been put forward that an essential fraction of long-duration BATSE gamma-ray bursts should lie at redshifts larger than 5. This point-of-view follows from the natural assumption that fainter objects should, on average, lie at larger redshifts.
arxiv   +1 more source

Progress and Application of Multifunctional Hydrogel in Radioactive Skin Injury

Advanced Materials Interfaces, EarlyView.
This review examines healing challenges in radiation‐wound injuries, where ionizing radiation impairs immune and tissue repair processes. Hydrogels, with their biocompatibility, antimicrobial properties, and drug delivery capabilities, present a transformative solution. It compares hydrogel efficacy in radiation‐induced versus common wounds, highlights
Xinyue Cui, Jingyi Wang, Xinyi Xu, Xiqian Cao, Yingtang Zhou, Jiaming Guo   +5 more
wiley   +1 more source

Connecting protein and mRNA burst distributions for stochastic models of gene expression [PDF]

, 2011
The intrinsic stochasticity of gene expression can lead to large variability in protein levels for genetically identical cells. Such variability in protein levels can arise from infrequent synthesis of mRNAs which in turn give rise to bursts of protein expression. Protein expression occurring in bursts has indeed been observed experimentally and recent
arxiv   +1 more source

HXMT identification of a non-thermal X-ray burst from SGR J1935+2154 and with FRB 200428

Nature Astronomy, 2020
Fast radio bursts (FRBs) are short pulses observed in the radio band from cosmological distances1. One class of models invokes soft gamma-ray repeaters (SGRs), or magnetars, as the sources of FRBs2.
C. K. Li, L. Lin, S. Xiong, M. Ge, X. Li, T. Li, F. Lu, S. Zhang, Y. Tuo, Y. Nang, B. Zhang, S. Xiao, Y. Chen, L. Song, Y. Xu, C. Liu, S. Jia, X. Cao, J. Qu, S. Zhang, Y. Gu, J. Liao, X. Zhao, Y. Tan, J. Nie, H. Zhao, S. Zheng, Y. Zheng, Q. Luo, C. Cai, B. Li, W. Xue, Q. Bu, Z. Chang, G. Chen, L. Chen, T. Chen, Y. Chen, Y. Chen, W. Cui, W. Cui, J. Deng, Y. Dong, Y. Du, M. Fu, G. Gao, H. Gao, M. Gao, Y. Gu, J. Guan, C. Guo, D. Han, Y. Huang, J. Huo, L. Jiang, W. Jiang, J. Jin, Y. Jin, L. Kong, G. Li, M. Li, W. Li, X. Li, X. Li, Y. Li, Z. Li, X. Liang, B. Liu, G. Liu, H. Liu, X. Liu, Y. Liu, B. Lu, X. Lu, T. Luo, X. Ma, B. Meng, G. Ou, N. Sai, R. Shang, X. Song, L. Sun, L. Tao, C. Wang, G. Wang, J. Wang, W. Wang, Y. Wang, X. Wen, B. Wu, B. Wu, M. Wu, G. Xiao, H. Xu, J. Yang, S. Yang, Y. J. Yang, Yi-Jung Yang, Q. Yi, Q. Yin, Y. You, A. Zhang, C. Zhang, F. Zhang, H. Zhang, J. Zhang, T. Zhang, W. Zhang, W. Zhang, W. Zhang, Yehui Zhang, Yue Zhang, Y. Zhang, Yehui Zhang, Z. Zhang, Zhi Zhang, Z. Zhang, D. Zhou, J. Zhou, Y. Zhu, Y. Zhu, R. Zhuang   +121 more
semanticscholar   +1 more source