Results 71 to 80 of about 584 (186)
Detached Circumstellar Matter as an Explanation for Slowly-Rising Interacting Type Ibc Supernovae
The Open Journal of AstrophysicsSome hydrogen-poor (Type Ibc) supernovae (SNe) are known to have massive circumstellar matter (CSM) that are well detached from the star. Using the open-source code \texttt{CHIPS}, we construct a grid of models of SN Ibc interacting with detached CSM ...
Yuki Takei, Daichi Tsuna
doaj +1 more source
ON THE GF-VALUES FOR SOME DIATOMIC MOLECULAR SPECTRA
Odessa Astronomical Publications, 2017 In view of rich structure of the energy levels and the variety of transition types which are observable, molecules are the useful tool for investigation of physical parameters of stellar atmospheres, interstellar and circumstellar matter.
L. A. Kuznetsova, A. V. Shavrina
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Galaxies, 2019 Stellar evolution theory is most uncertain for massive stars. For reliable predictions of the evolution of massive stars and their final fate, solid constraints on the physical parameters, and their changes along the evolution and in different ...
Michaela Kraus
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The Astrophysical JournalSome supernovae (SNe) are powered by the collision of the SN ejecta with dense circumstellar matter (CSM). Their emission spectra show characteristic line shapes of combined broad emission and narrow P Cygni lines, which should closely relate to the CSM ...
Ayako T. Ishii +4 more
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Origin of the Strong Sodium Absorption of the Lensed Supernova 2016geu at z = 0.4
The Astrophysical JournalThe origin of strong sodium absorption, which has been observed for a few nearby Type Ia supernovae (SNe Ia), remains elusive. Here we analyze two high-signal-to-noise, intermediate-resolution Very Large Telescope/X-shooter spectra at epochs +18 and +27 ...
Christa Gall +9 more
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A Century of Studies of the Object with the B[e] Phenomenon HD 50138
GalaxiesHD 50138 is a 6.6 mag emission-line B–type star, whose nature is still controversial. It has been thought to be a pre-main-sequence Herbig Be star and an evolved object with the B[e] phenomenon, possibly a mass-transferring binary system. However, it has
Holly Buroughs +10 more
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87th Annual Meeting of the Meteoritical Society 2025: Abstracts
Meteoritics &Planetary Science, Volume 60, Issue S1, Page 30-350, August 2025.
wiley +1 more source
Unravelling the Asphericities in the Explosion and Multifaceted Circumstellar Matter of SN 2023ixf
The Astrophysical JournalWe present a detailed investigation of photometric, spectroscopic, and polarimetric observations of the Type II SN 2023ixf. Earlier studies have provided compelling evidence for a delayed shock breakout from a confined dense circumstellar matter (CSM ...
Avinash Singh +35 more
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AS 314: A Massive Dusty Hypergiant or a Low-Mass Post-Asymptotic Giant Branch Object?
GalaxiesAS 314 (V452 Sct) is a poorly studied early-type emission-line star, which exhibits an infrared excess at wavelengths longer than 10 μm. Its earlier studies have been limited to small amounts of observational data and led to controversial conclusions ...
Aigerim Bakhytkyzy +8 more
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History of two mass loss processes in VY CMa. [PDF]
Proc Int Astron Union, 2023 Quintana-Lacaci G +6 more
europepmc +1 more source