Results 91 to 100 of about 7,335,139 (174)

Type Ib And Ic Supernovae: Models And Spectra

, 2008
this paper we consider the properties of massive star models for Type Ib and Ic supernovae. There are two ways that a massive star can lose its hydrogen envelope - binary mass exchange and stellar wind. These are not mutually exclusive. A star might lose
R. G. Eastman, S. E. Woosley, Woosley Board   +2 more
core  

Detection of Metal Enrichment by SN 2011jm in NGC 4809

The Astrophysical Journal Letters
Cosmic metals are believed to originate from stellar and supernovae (SNe) nucleosynthesis, dispersed into the interstellar medium (ISM) through stellar winds and supernova explosions.
Yulong Gao, Qiusheng Gu, Ping Zhou, Yong Shi, Xiangdong Li   +4 more
doaj   +1 more source

Type Ibn supernovae from ultra-stripped supernova progenitors

<jats:title>Abstract</jats:title> <jats:p>Ultra-stripped supernovae are core-collapse supernovae from progenitors that lose a significant fraction of mass because of the binary interactions with their compact companion stars.
Müller, Bernhard, Sorokina, Elena I, Ushakova, Marina, Heger, Alexander, Moriya, Takashi J, Blinnikov, Sergei I, Tauris, Thomas M; id_orcid   +6 more
core   +1 more source

Absolute Magnitude Distributions and Light Curves of Stripped-Envelope Supernovae [PDF]

, 2006
The absolute visual magnitudes of three Type IIb, 11 Type Ib, and 13 Type le supernovae (collectively known as stripped-envelope supernovae) are studied by collecting data on the apparent magnitude, distance, and interstellar extinction of each event ...
Branch, D., Richardson, D., Baron, E.
core   +1 more source

Traces of Helium Detected in Type Ic Supernova 2014L

The Astrophysical Journal Letters
The absence of helium features in optical spectra is one of the classification criteria for Type Ic supernovae (SNe Ic). However, it is highly debated whether helium is truly absent in ejecta or spectroscopically undetectable in the optical region.
Jing Lu, Wolfgang E. Kerzendorf, John T. O’Brien, Maryam Modjaz, Jared A. Goldberg, Nutan Chen, Erin Visser, Joshua V. Shields, Andrew G. Fullard   +8 more
doaj   +1 more source

EP260321a/SN 2026gzf: The Faintest Shock Breakout Associated with a Broad-lined Supernova

The Astrophysical Journal Letters
The explosion of a star is first marked by the shock wave breaking out of the stellar surface, producing a burst of ultraviolet and X-ray radiation. These events are observationally rare, despite likely accompanying the majority of supernovae (SNe). Here,
Brendan O’Connor, Xander J. Hall, Malte Busmann, Daniel Gruen, Alberto Floris, Tomás Cabrera, Ziyuan Zhu, Antonella Palmese, Dylan Green, John Banovetz, Julius Gassert, Christopher L. Fryer, Roberto Ricci, Eleonora Troja, Surya Shivaprasad, Gregory R. Zeimann, Ariel J. Amsellem, Stephen Bailey, Segev BenZvi, Simone Dichiara, Hendrik van Eerten, Jeremy Hare, Lei Hu, Christopher M. Irwin, Keerthi Kunnumkai, Konstantin Malanchev, Mitra Maleki, Michael J. Moss, Adam D. Myers, Dheeraj Pasham, Christoph Ries, Geoffrey Ryan, David Schlegel, Michael Schmidt, Silona Wilke, Yu-Han Yang   +35 more
doaj   +1 more source

A statistical study of the environmental age of core-collapse supernovae based on VLT/MUSE integral-field-unit spectroscopy

Astronomy & Astrophysics
Aims. We aim to understand the progenitor channels of core-collapse supernovae (CCSNe) via a statistical study of the ages of their environments. Methods.
Xi Qiang, Sun Ning-Chen, Zhao Yihan, Zapartas Emmanouil, Souropanis Dimitris, Chen Chun, Chen Xiaohan, Rojas-Bravo César, Maund Justyn R., Niu Zexi, Singleton Adam J., Wang Anyu, Wang Zhiyi, Wang Ziyang, Wu Junjie, Liu Jifeng   +15 more
doaj   +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

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

Supernovae and transients with circumstellar interaction. [PDF]

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