Results 121 to 130 of about 13,120 (212)

86th Annual Meeting of the Meteoritical Society (2024)

Meteoritics &Planetary Science, Volume 59, Issue S1, Page A1-A468, August 2024.
wiley   +1 more source

A Near-infrared Search for Helium in the Superluminous Supernova SN 2024ahr

The Astrophysical Journal
We present a detailed study of SN 2024ahr, a hydrogen-poor superluminous supernova (SLSN-I), for which we determine a redshift of z = 0.0861. SN 2024ahr has a peak absolute magnitude of M _g ≈ M _r ≈ −21 mag, rest-frame rise and decline times (50% of ...
Harsh Kumar, Edo Berger, Peter K. Blanchard, Sebastian Gomez, Daichi Hiramatsu, Moira Andrews, K. Azalee Bostroem, Yize Dong, Joseph Farah, Estefania Padilla Gonzalez, D. Andrew Howell, Curtis McCully, Darshana Mehta, Megan Newsome, Aravind P. Ravi, Giacomo Terreran   +15 more
doaj   +1 more source

Evolution of an electron-positron plasma produced by induced gravitational collapse in binary-driven hypernovae

EPJ Web of Conferences, 2018
The binary-driven hypernova (BdHN) model has been introduced in the past years, to explain a subfamily of gamma-ray bursts (GRBs) with energies Eiso ≥ 1052 erg associated with type Ic supernovae.
Melon Fuksman J. D., Becerra L., L. Bianco C., Karlica M., Kovacevic M., Moradi R., Muccino M., B. Pisani G., Primorac D., A. Rueda J., Ruffini R., Vereshchagin G. V., Wang Y.   +12 more
doaj   +1 more source

The cosmic ray ionization and γ-ray budgets of star-forming galaxies. [PDF]

Mon Not R Astron Soc, 2023
Krumholz MR, Crocker RM, Offner SSR.
europepmc   +1 more source

A Detection of Helium in the Bright Superluminous Supernova SN 2024rmj

The Astrophysical Journal
We present extensive ultraviolet, optical, and near-infrared (NIR) photometric and spectroscopic observations of the nearby hydrogen-poor superluminous supernova (SLSN-I) SN 2024rmj at z = 0.1189.
Harsh Kumar, Edo Berger, Peter K. Blanchard, Daichi Hiramatsu, Sebastian Gomez, Alex Gagliano, Moira Andrews, K. Azalee Bostroem, Joseph Farah, D. Andrew Howell, Curtis McCully   +10 more
doaj   +1 more source

A nearby long gamma-ray burst from a merger of compact objects. [PDF]

Nature, 2022
Troja E, Fryer CL, O'Connor B, Ryan G, Dichiara S, Kumar A, Ito N, Gupta R, Wollaeger RT, Norris JP, Kawai N, Butler NR, Aryan A, Misra K, Hosokawa R, Murata KL, Niwano M, Pandey SB, Kutyrev A, van Eerten HJ, Chase EA, Hu YD, Caballero-Garcia MD, Castro-Tirado AJ.   +23 more
europepmc   +1 more source

Supernova-induced Binary-interaction-powered Supernovae: A Model for SN2022jli

The Astrophysical Journal
We present 3D hydrodynamical modelling of supernova (SN)-induced binary-interaction-powered SNe; a scenario proposed for the peculiar type Ic SN SN2022jli.
Ryosuke Hirai, Philipp Podsiadlowski, Peter Hoeflich, Maxim V. Barkov, Conrad Chan, David Liptai, Shigehiro Nagataki   +6 more
doaj   +1 more source

SN 2023syz and SN 2025cbj: Two Type IIn Supernovae Associated with IceCube High-energy Neutrinos

The Astrophysical Journal
Type IIn supernovae (SNe IIn) are a subclass of core-collapse SNe in which strong interactions occur between the ejecta and dense circumstellar material, creating ideal conditions for the production of high-energy neutrinos.
Ming-Xuan Lu, Yun-Feng Liang, Xiang-Gao Wang, Hao-Qiang Zhang   +3 more
doaj   +1 more source

The Einstein Probe Transient EP240414a: Linking Fast X-Ray Transients, Gamma-Ray Bursts, and Luminous Fast Blue Optical Transients

The Astrophysical Journal Letters
Detections of fast X-ray transients (FXTs) have accrued over the last few decades. However, their origin has remained mysterious. Rapid progress is now being made thanks to timely discoveries and localizations with the Einstein Probe mission.
Joyce N. D. van Dalen, Andrew J. Levan, Peter G. Jonker, Daniele Bjørn Malesani, Luca Izzo, Nikhil Sarin, Jonathan Quirola-Vásquez, Daniel Mata Sánchez, Antonio de Ugarte Postigo, Agnes P. C. van Hoof, Manuel A. P. Torres, Steve Schulze, Stuart P. Littlefair, Ashley Chrimes, Maria E. Ravasio, Franz E. Bauer, Antonio Martin-Carrillo, Morgan Fraser, Alexander J. van der Horst, Pall Jakobsson, Paul O’Brien, Massimiliano De Pasquale, Giovanna Pugliese, Jesper Sollerman, Nial R. Tanvir, Tayyaba Zafar, Joseph P. Anderson, Lluís Galbany, Avishay Gal-Yam, Mariusz Gromadzki, Tomás E. Müller-Bravo, Fabio Ragosta, Jacco H. Terwel   +32 more
doaj   +1 more source

Collapsars as Sites of r-process Nucleosynthesis: Systematic Photometric Near-infrared Follow-up of Type Ic-BL Supernovae

The Astrophysical Journal
One of the open questions following the discovery of GW170817 is whether neutron star (NS) mergers are the only astrophysical sites capable of producing r -process elements.
Shreya Anand, Jennifer Barnes, Sheng Yang, Mansi M. Kasliwal, Michael W. Coughlin, Jesper Sollerman, Kishalay De, Christoffer Fremling, Alessandra Corsi, Anna Y. Q. Ho, Arvind Balasubramanian, Conor Omand, Gokul P. Srinivasaragavan, S. Bradley Cenko, Tomás Ahumada, Igor Andreoni, Aishwarya Dahiwale, Kaustav Kashyap Das, Jacob Jencson, Viraj Karambelkar, Harsh Kumar, Brian D. Metzger, Daniel Perley, Nikhil Sarin, Tassilo Schweyer, Steve Schulze, Yashvi Sharma, Tawny Sit, Robert Stein, Leonardo Tartaglia, Samaporn Tinyanont, Anastasios Tzanidakis, Jan van Roestel, Yuhan Yao, Joshua S. Bloom, David O. Cook, Richard Dekany, Matthew J. Graham, Steven L. Groom, David L. Kaplan, Frank J. Masci, Michael S. Medford, Reed Riddle, Chaoran Zhang   +43 more
doaj   +1 more source