Results 131 to 140 of about 257,446 (367)

Long-duration Gamma-Ray Burst Progenitors and Magnetar Formation

The Astrophysical Journal, 2023
Millisecond magnetars produced in the center of dying massive stars are one prominent model to power gamma-ray bursts (GRBs). However, their detailed nature remains a mystery. To explore the effects of the initial mass, rotation rate, wind mass loss, and
Cui-Ying Song, Tong Liu
doaj   +1 more source

Remnants from Gamma-Ray Bursts

, 2000
We model the intermediate time evolution of a "jetted" gamma-ray burst by two blobs of matter colliding with the interstellar medium. We follow the hydrodynamical evolution of this system numerically and calculate the bremsstrahlung and synchrotron ...
Gopal-Krishna, Libersky L. D., Shai Ayal, Tsvi Piran   +3 more
core   +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

Suppressing Metal Dissolution in Multi‐Grained Catalysts Through Intragrain Atomic Ordering for Stable Fuel Cells

Advanced Materials, EarlyView.
This study presents a novel approach room‐temperature ultrasound assisted atomic ordering method using to fabricate multi‐grained NiPt nanoalloys with an intermetallic Ni3Pt5 phase. The resulting catalyst exhibits state‐of‐the‐art durability and activity in all operational condition of proton exchange membrane fuel cells. Structural and electrochemical
Eungjun Lee, Haneul Jin, Hyesung Jo, Myeong‐Geun Kim, Jae Hyun Park, Jieun Baik, Jong Seok Park, Jue‐Hyuk Jang, Seung‐Hoon Kim, Dong Wook Lee, Jihyun Choi, Jong Kyeong Ryu, Daeil Choi, Juyoung Kim, Sang Moon Kim, Yung‐Eun Sung, Kug‐Seung Lee, Docheon Ahn, Yongsoo Yang, Dong Won Chun, Sung Jong Yoo   +20 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

Mechanically Robust and Ion‐Conductive Polyampholyte Elastomers via Dimeric Ionic Bonding

Advanced Materials, EarlyView.
This study introduces a new class of polyampholyte ionic elastomers balancing both high mechanical strength and ionic conductivity by utilizing a novel precipitation method to create ionic dimers. The resulting elastomers exhibited strong mechanical performance and excellent ion mobility, making them ideal for applications in flexible electronics ...
Taebin Kim, Kyeong‐Seok Oh, SeJung Oh, Jong Gun Jung, Gwanho Kim, Woojoong Kim, Yeonji Kim, Jiwon Kim, Hyunseo Kang, Sang‐Young Lee, Cheolmin Park   +10 more
wiley   +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

Recent Advances in Reactive Microdroplets for Clean Water and Energy

Advanced Materials, EarlyView.
Reactive microdroplets enable precise and sustainable chemistry at small scales. This review explores their role as confined reactors and dynamic interfaces for synthesizing functional materials, fuels, and microdevices. It offers a critical perspective on how droplet‐based platforms can drive next‐generation technologies in clean energy, environmental
Qiuyun Lu, Boubakar Sanogo, Tanay Kumar, Ben Bin Xu, Xuehua Zhang   +4 more
wiley   +1 more source

The BATSE Gamma-Ray Burst Spectral Catalog. I. High Time Resolution Spectroscopy of Bright Bursts Using High Energy Resolution Data [PDF]

, 1999
This is the first in a series of gamma-ray burst spectroscopy catalogs from the Burst and Transient Source Experiment (BATSE) on the Compton Gamma Ray Observatory, each covering a different aspect of burst phenomenology.
R. Preece, M. Briggs, R. Mallozzi, G. Pendleton, W. Paciesas, D. Band   +5 more
semanticscholar   +1 more source