Results 101 to 110 of about 727,871 (227)

SN2010jp (PTF10aaxi): A Jet-Driven Type II Supernova [PDF]

open access: yes, 2011
We present photometry and spectroscopy of the peculiar TypeII supernova (SN) 2010jp, also named PTF10aaxi. The light curve exhibits a linear decline with a relatively low peak absolute magnitude of only -15.9, and a low radioactive decay luminosity at ...
Arcavi, Iair   +20 more
core   +2 more sources

Multiple Shells in Supernova 2023ixf Support the Jittering Jets Explosion Mechanism

open access: yesThe Astrophysical Journal Letters
Examining the photospheric time evolution of the core-collapse supernova (CCSN) SN 2023ixf from the literature, we identify two (possibly three) evolutionary time periods with constant expansion velocities, which we attribute to two (or three) ejecta ...
Noam Soker, Kobi Shiran
doaj   +1 more source

Circumstellar Na I and Ca II lines in type IIP supernovae and SN 1998S

open access: yes, 2008
We study a possibility of detection of circumstellar absorption lines of Na I D$_{1,2}$ and Ca II H,K in spectra of type IIP supernovae at the photospheric epoch.
A. Fassia   +29 more
core   +1 more source

Optical Spectroscopy of Type Ia Supernovae by the Carnegie Supernova Projects I and II

open access: yesThe Astrophysical Journal
We present the second and final release of optical spectroscopy of Type Ia supernovae (SNe Ia) obtained during the first and second phases of the Carnegie Supernova Project (CSP-I and CSP-II).
N. Morrell   +59 more
doaj   +1 more source

Detection of Supernova Neutrinos [PDF]

open access: yes, 2004
Matter effects on neutrino oscillations in both, a supernova and the Earth, change the observed supernova neutrino spectra. We calculate the expected number of supernova neutrino interactions for ICARUS, SK and SNO detectors as a function of the distance
Bekman, B., Holeczek, J., Kisiel, J.
core   +2 more sources

Classifications of the Host Galaxies of Supernovae

open access: yes, 2002
Classifications on the DDO system are given for the host galaxies of 177 supernovae (SNe) that have been discovered since 1997 during the course of the Lick Observatory Supernova Search with the Katzman Automatic Imaging Telescope.
Alexei V. Filippenko   +5 more
core   +2 more sources

Binary Interaction Can Yield a Diversity of Circumstellar Media around Type II Supernova Progenitors

open access: yesThe Astrophysical Journal
Recent observations of supernovae (SNe) have indicated that a fraction of massive stars possess dense circumstellar medium (CSM) at the moment of their core collapses.
Tomoki Matsuoka, Ryo Sawada
doaj   +1 more source

Magnetorotational Explosions of Core-Collapse Supernovae

open access: yesActa Polytechnica CTU Proceedings, 2014
Core-collapse supernovae are accompanied by formation of neutron stars. The gravitation energy is transformed into the energy of the explosion, observed as SN II, SN Ib,c type supernovae.
Gennady S. Bisnovatyi-Kogan   +2 more
doaj   +1 more source

Early-time Spitzer observations of the type II-Plateau supernova, 2004dj

open access: yes, 2005
We present mid-infrared observations with the Spitzer Space Telescope of the nearby type II-P supernova, SN 2004dj, at epochs of 89 to 129 days. We have obtained the first mid-IR spectra of any supernova apart from SN 1987A.
Halenka J.   +8 more
core   +1 more source

Early and Extensive Ultraviolet through Near Infrared Observations of the Intermediate-luminosity Type Iax Supernovae 2024pxl

open access: yesThe Astrophysical Journal
We present ultraviolet (UV) through near-infrared (NIR) photometric and spectroscopic observations of the nearby SN 2024pxl, the third Type Ia supernova (SN Ia) in NGC 6384.
W. B. Hoogendam   +14 more
doaj   +1 more source

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