Results 131 to 140 of about 13,120 (212)

The hydrogen-free circumstellar interaction in the Type Ib supernova 2021efd: A clue to the mechanism of the helium-layer stripping

Astronomy & Astrophysics
Context. Stripped-envelope supernovae (SESNe), including Type IIb, Ib, and Ic supernovae (SNe), originate from the explosions of massive stars whose outer envelopes have been largely removed during their lifetimes.
Pyykkinen N., Nagao T., Kuncarayakti H., Stritzinger M. D., Kangas T., Maeda K., Chen P., Sollerman J., Burns C., Bose S., Folatelli G., Ferrari L., Morrell N., Reguitti A., Salmaso I., Mattila S., Gal-Yam A., Fremling C., Anand S., Kasliwal M. M., Gutiérrez C. P., Galbany L., Hoogendam W., Schulze S., Ashall C., Medler K., Pfeffer C. M., Lundqvist P., Rusholme B., Adler J.   +29 more
doaj   +1 more source

An Archival Optical Counterpart Search for Extragalactic Fast X-Ray Transients Discovered by Einstein Probe

The Astrophysical Journal
Extragalactic fast X-ray transients (eFXTs) represent a rapidly growing class of high-energy phenomena, whose physical origins remain poorly understood. With its wide-field, sensitive all-sky monitoring, the Einstein Probe (EP) has greatly increased the ...
Run-Duo Liang, Wen-Xiong Li, Liang-Duan Liu, Ken W. Smith, Stephen J. Smartt, Qin-Yu Wu, Niu Li, Arne Rau, Ling-Zhi Wang, Armin Rest, Ning-Chen Sun, Franz E. Bauer, Ezequiel Treister, Jia-Sheng Huang, Jennifer Chacón, Seán J. Brennan, Matt Nicholl, Ting-Wan Chen, Amar Aryan, Sheng Yang, Albert K.H. Kong, Sofia Rest, Qi-Nan Wang, James H. Gillanders, Dong-Yue Li, An Li, Jun Yang, Qing-Chang Zhao, Hui Sun, Yun-Fei Xu, Zhi-Xing Ling, Thomas J. L. de Boer, Ken C. Chambers, Chien-Cheng Lin, Thomas B. Lowe, Eugene A. Magnier, Richard J. Wainscoat, J. Quirola-Vásquez, Xiao-Feng Wang, Samaporn Tinyanont, Jing-Wei Hu, He-Yang Liu, Hua-Qing Cheng, Hao-Wei Peng, Chen Zhang, Dong-Hua Zhao, Mao-Hai Huang, Yong Chen, Shu-Mei Jia, Cheng-Kui Li, Ju Guan, Chen-Zhou Cui, Yuan Liu, Weimin Yuan   +53 more
doaj   +1 more source

The Kangaroo’s First Hop: The Early Fast Cooling Phase of EP250108a/SN 2025kg

The Astrophysical Journal Letters
Fast X-ray transients are a rare and poorly understood population of events. Previously difficult to detect in real time, the launch of the Einstein Probe with its Wide-field X-ray Telescope has led to a rapid expansionof the sample and allowed the ...
Rob A. J. Eyles-Ferris, Peter G. Jonker, Andrew J. Levan, Daniele Bjørn Malesani, Nikhil Sarin, Christopher L. Fryer, Jillian C. Rastinejad, Eric Burns, Nial R. Tanvir, Paul T. O’Brien, Wen-fai Fong, Ilya Mandel, Benjamin P. Gompertz, Charles D. Kilpatrick, Steven Bloemen, Joe S. Bright, Francesco Carotenuto, Gregory Corcoran, Laura Cotter, Paul J. Groot, Luca Izzo, Tanmoy Laskar, Antonio Martin-Carrillo, Jesse Palmerio, Maria E. Ravasio, Jan van Roestel, Andrea Saccardi, Rhaana L. C. Starling, Aishwarya Linesh Thakur, Susanna D. Vergani, Paul M. Vreeswijk, Franz E. Bauer, Sergio Campana, Jennifer A. Chacón, Ashley A. Chrimes, Stefano Covino, Joyce N. D. van Dalen, Valerio D’Elia, Massimiliano De Pasquale, Nusrin Habeeb, Dieter H. Hartmann, Agnes P. C. van Hoof, Páll Jakobsson, Yashaswi Julakanti, Giorgos Leloudas, Daniel Mata Sánchez, Christopher J. Nixon, Daniëlle L. A. Pieterse, Giovanna Pugliese, Jonathan Quirola-Vásquez, Ben C. Rayson, Ruben Salvaterra, Ben Schneider, Manuel A. P. Torres, Tayyaba Zafar   +54 more
doaj   +1 more source

Hydrogen-rich to stripped-envelope: observational continuity and biases in CCSNe

Frontiers in Astronomy and Space Sciences
Although historically classified into discrete subclasses, there is growing evidence that indicates that core-collapse supernovae (CCSNe) categories often overlap, reflecting continuous variations in progenitor structure, mass-loss history, and ...
Anjasha Gangopadhyay, Priscila J. Pessi, Priscila J. Pessi   +2 more
doaj   +1 more source

Supernovae and transients with circumstellar interaction. [PDF]

R Soc Open Sci, 2020
Fraser M.
europepmc   +1 more source

A radio-detected type Ia supernova with helium-rich circumstellar material. [PDF]

Nature, 2023
Kool EC, Johansson J, Sollerman J, Moldón J, Moriya TJ, Mattila S, Schulze S, Chomiuk L, Pérez-Torres M, Harris C, Lundqvist P, Graham M, Yang S, Perley DA, Strotjohann NL, Fremling C, Gal-Yam A, Lezmy J, Maguire K, Omand C, Smith M, Andreoni I, Bellm EC, Bloom JS, De K, Groom SL, Kasliwal MM, Masci FJ, Medford MS, Park S, Purdum J, Reynolds TM, Riddle R, Robert E, Ryder SD, Sharma Y, Stern D.   +36 more
europepmc   +1 more source

EP240414a: Off-axis View of a Jet-cocoon System from an Expanded Progenitor Star

The Astrophysical Journal
When a relativistic jet is launched following the core collapse of a star, its interaction with the stellar envelope leads to the formation of a hot cocoon, which produces various viewing-angle-dependent observational phenomena following the breakout ...
Jian-He Zheng, Jin-Ping Zhu, Wenbin Lu, Bing Zhang   +3 more
doaj   +1 more source

Survival of presolar p-nuclide carriers in the nebula revealed by stepwise leaching of Allende refractory inclusions. [PDF]

Sci Adv, 2021
Charlier BLA, Tissot FLH, Vollstaedt H, Dauphas N, Wilson CJN, Marquez RT.   +5 more
europepmc   +1 more source

From Supernova to Remnant: Tracking the Evolution of the Oldest Known X-Ray Supernovae. [PDF]

Astrophys J, 2020
Ramakrishnan V, Dwarkadas VV.
europepmc   +1 more source

Rapid identification of lensed type Ia supernovae with color-magnitude selection

The Open Journal of Astrophysics
Strongly lensed type Ia supernovae (SNe Ia) provide a unique cosmological probe to address the Hubble tension problem in cosmology. In addition to the sensitivity of the time delays to the value of the Hubble constant, the transient and standard candle ...
Prajakta Mane, Anupreeta More, Surhud More   +2 more
doaj   +1 more source