Results 91 to 100 of about 7,219,823 (215)

Optical Spectroscopy of Type Ib/c Supernovae

, 2001
Accepted for publication in the March issue of AJ.
Matheson, Thomas, Filippenko, Alexei V., Li, Weidong, Leonard, Douglas C., Shields, Joseph C.   +4 more
openaire   +2 more sources

Type Ib and Ic supernovae: Models and spectra

, 1996
In 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.
Woosley, S.E. (California Univ., Santa Cruz, CA (United States). Board of Studies in Astronomy and Astrophysics, Eastman, R.G. (Lawrence Livermore National Lab. (LLNL), CA (United States)), Max-Planck-Institut fuer Astrophysik, Garching (Germany), Max-Planck-Institut fuer Astrophysik, Garching (Germany))   +3 more
core  

Optical Spectra of Thermonuclear Supernovae in the Local and Distant Universe [PDF]

, 2005
This thesis is devoted to the study of optical spectra of thermonuclear supernovae, known as ``Type Ia'' supernovae (SN Ia). These violent stellar explosions, visible across a large fraction of the observable universe, are used to measure distances on ...
Blondin, Stephane
core   +1 more source

Spectropolarimetric Evolution Reveals Dual-axis Ejecta in the Atypical Magnetar-powered SN 2012au

The Astrophysical Journal
We present six epochs of optical spectropolarimetric observations of the unique and slow-evolving Type Ib supernova (SN) 2012au, between 0 and 295 day post- R -band maximum.
Sabrina DeSoto, Jennifer L. Hoffman, G. Grant Williams, Christopher Bilinski, Douglas C. Leonard, Peter A. Milne, Christopher Pickens, Manisha Shrestha, Nathan Smith, Paul S. Smith   +9 more
doaj   +1 more source

Probing Presupernova Mass Loss in Double-peaked Type Ibc Supernovae from the Zwicky Transient Facility

The Astrophysical Journal
Eruptive mass loss of massive stars prior to supernova (SN) explosion is key to understanding their evolution and end fate. An observational signature of pre-SN mass loss is the detection of an early, short-lived peak prior to the radioactive-powered ...
Kaustav K. Das, Mansi M. Kasliwal, Jesper Sollerman, Christoffer Fremling, I. Irani, Shing-Chi Leung, Sheng Yang, Samantha Wu, Jim Fuller, Shreya Anand, Igor Andreoni, C. Barbarino, Thomas G. Brink, Kishalay De, Alison Dugas, Steven L. Groom, George Helou, K-Ryan Hinds, Anna Y. Q. Ho, Viraj Karambelkar, S. R. Kulkarni, Daniel A. Perley, Josiah Purdum, Nicolas Regnault, Steve Schulze, Yashvi Sharma, Tawny Sit, Niharika Sravan, Gokul P. Srinivasaragavan, Robert Stein, Kirsty Taggart, Leonardo Tartaglia, Anastasios Tzanidakis, Avery Wold, Lin Yan, Yuhan Yao, Jeffry Zolkower   +36 more
doaj   +1 more source

SN 2023zaw: The Low-energy Explosion of an Ultrastripped Star

The Astrophysical Journal Letters
Most stripped-envelope supernova progenitors are thought to be formed through binary interaction, losing hydrogen and/or helium from their outer layers. Ultrastripped supernovae are an emerging class of transient that are expected to be produced through ...
T. Moore, J. H. Gillanders, M. Nicholl, M. E. Huber, S. J. Smartt, S. Srivastav, H. F. Stevance, T.-W. Chen, K. C. Chambers, J. P. Anderson, M. D. Fulton, S. R. Oates, C. Angus, G. Pignata, N. Erasmus, H. Gao, J. Herman, C.-C. Lin, T. Lowe, E. A. Magnier, P. Minguez, C.-C. Ngeow, X. Sheng, S. A. Sim, K. W. Smith, R. Wainscoat, S. Yang, D. R. Young, K.-J. Zeng   +28 more
doaj   +1 more source

Nonthermal excitation of helium in type Ib supernovae

The Astrophysical Journal, 1991
The presence of strong He I absorption troughs in the optical spectra of type Ib SNs is attributed to non-thermal excitation. As for analogous in the premaximum spectra of SN 1987A, the early importance of nonthermal excitation in the Ib's is fundamentally due to a large-scale instability that mixes 56 Ni out into their envelopes shortly after the ...
openaire   +1 more source

Observational constraints on the progenitor metallicities of core-collapse supernovae [PDF]

, 2010
Artículo de publicación ISIWe present constraints on the progenitor metallicities of core-collapse supernovae. To date, nearly all metallicity constraints have been inferred from indirect methods such as metallicity gradients in host galaxies ...
James, P. A., Anderson, Joseph P., M. Hamuy, Hamuy Wackenhut, Mario, R. A. Covarrubias, J. P. Anderson, Habergham, S. M., P. A. James, S. M. Habergham, Covarrubias, R. A.   +9 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

Near-infrared and Optical Observations of SN 2024rbc: The First Early Detection of CO and Dust in a Type Ib Supernova

The Astrophysical Journal
We present optical and near-infrared (NIR) observations of the Type Ib supernova (SN) 2024rbc. Emission from the first CO overtone, resting on a dust continuum at 2.3−2.4 μ m, was observed at 62 days postexplosion. The CO band heads are not resolved, and
Ryan Hwangbo, Jeonghee Rho, Aravind P. Ravi, Seong Hyun Park, Harim Jin, Sung-Chul Yoon, T. R. Geballe, Ryan Foley, Kirsty Taggart, Kyle W. Davis, Kishore C. Patra, S. Tinyanont, Jesper Sollerman, Steve Schulze, Natalie LeBaron, Chang Liu, Charles D. Kilpatrick, David O. Jones, C. Tanner Murphey   +18 more
doaj   +1 more source