Results 101 to 110 of about 7,219,823 (215)

Are Wolf-Rayet Stars the Progenitors of Type Ib/Ic Supernovae? [PDF]

Symposium - International Astronomical Union, 1991
I discuss evidence for and against the hypothesis that Type Ib and Type Ic supernovae (SNe) are produced by core collapse in massive, evolved progenitors. A key object is SN 1987K, whose spectroscopic classification changed from Type II to Type Ib/Ic as it aged.
openaire   +1 more source

Spectral dataset of young type Ib supernovae and their time evolution

Due to high-cadence automated surveys, we can now detect and classify supernovae (SNe) within a few days after explosion, if not earlier. Early-time spectra of young SNe directly probe the outermost layers of the ejecta, providing insights into the ...
G. Terreran, M. Modjaz, S. Jha, G. Hosseinzadeh, E. Padilla Gonzalez, N. Yesmin, R. Baer-Way, D. A. Howell, D. Hiramatsu, J. Farah, I. Arcavi, C. McCully, C. Pellegrino, M. Newsome   +13 more
core   +1 more source

Radiative Transfer Modeling of Stripped-envelope Supernovae. I. A Grid for Ejecta Parameter Inference

The Astrophysical Journal
We present 1800 multiwavelength Type Ib/c supernovae light-curve models obtained by running the radiation transport code Sedona and varying the mass distribution, velocity profile, and abundance ejecta profiles of helium star progenitors.
S. Karthik Yadavalli, V. Ashley Villar, Abigail Polin, S. E. Woosley, Maria R. Drout, Miranda Pikus   +5 more
doaj   +1 more source

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

ISEV2025 Abstract Book

Journal of Extracellular Vesicles, Volume 14, Issue S1, October 2025.
wiley   +1 more source

Dust without Na I D Trace: The Case of Highly Attenuated Type Ib SN 2024vjc

The Astrophysical Journal
Understanding dust attenuation toward extragalactic transients is critical for recovering their intrinsic properties and probing the local environments of distant galaxies.
Javier Silva-Farfán, Keiichi Maeda, Andrea Pastorello, Hanindyo Kuncarayakti, Takashi Nagao, Giorgio Valerin, Andrea Reguitti, Dino Pierluigi Fugazza, Giuliano Pignata, Jesper Sollerman, C. Ashall, Tomás E. Müller-Bravo, Joseph P. Anderson, Claudia P. Gutiérrez, Priscila J. Pessi, Erkki Kankare, Niko Pyykkinen, Mariusz Gromadzki, Ting-Wan Chen, Thomas M. Reynolds, Irene Salmaso, Avishay Gal-Yam   +21 more
doaj   +1 more source

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  

INHOMOGENEITIES IN TYPE Ib/c SUPERNOVAE : AN INVERSE COMPTON SCATTERING ORIGIN OF THE X-RAY EMISSION

, 2013
Inhomogeneities in a synchrotron source can severely affect the conclusions drawn from observations regarding the source properties. However, their presence is not always easy to establish, since several other effects can give rise to similar observed ...
Björnsson, Claes-Ingvar,
core   +1 more source

Shock Cooling Emission from Late-time Mass Loss in Low-mass He Star Binaries

The Astrophysical Journal
A subset of hydrogen-poor supernovae (SNe) exhibit signatures of interaction with nearby dense circumstellar material (CSM). These SNe may originate from interacting binary systems, in which the SN progenitor experiences intense mass loss when it ...
Samantha C. Wu, Anthony L. Piro
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