Results 41 to 50 of about 48,593 (219)

Peculiar Type II Supernovae from Blue Supergiants [PDF]

open access: yes, 2011
The vast majority of Type II supernovae (SNe) are produced by red supergiants (RSGs), but SN 1987A revealed that blue supergiants (BSGs) can produce members of this class as well, albeit with some peculiar properties.
Aldering   +87 more
core   +1 more source

Nlte-Effects in Supernovae Type II Photospheres [PDF]

open access: yesHighlights of Astronomy, 1986
AbstractIn order to provide accurate fluxes of supernovae Type II as needed for the application of the Baade-Wesselink method we have constructed spherical model photospheres for these objects under the assumption that hydrogen and helium are in statistical equilibrium.
P. Höflich, R. Wehrse, G. Shaviv
openaire   +1 more source

A semi-analytical light curve model and its application to type IIP supernovae [PDF]

open access: yes, 2014
The aim of this work is to present a semi-analytical light curve modeling code which can be used for estimating physical properties of core collapse supernovae (SNe) in a quick and efficient way.
Nagy, Andrea P.   +3 more
core   +3 more sources

Dust formation in primordial Type II supernovae [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2001
11 pages, LaTeX, 11 figures, MNRAS ...
Todini, Paolo, Ferrara, Andrea
openaire   +2 more sources

Blue supergiant progenitor models of Type II supernovae [PDF]

open access: yes, 2013
In the present paper we show that within all the uncertainties that govern the process of Roche lobe overflow in Case Br type massive binaries, it can not be excluded that a significant fraction of them merge and become single stars.
De Loore, C.   +3 more
core   +1 more source

DUST AND THE TYPE II-PLATEAU SUPERNOVA 2004dj [PDF]

open access: yesThe Astrophysical Journal, 2011
ApJ in press; minor changes c.f ...
Meikle, W.P.S.   +15 more
openaire   +4 more sources

Observed and Physical Properties of Core-Collapse Supernovae [PDF]

open access: yes, 2002
I use photometry and spectroscopy data for 24 Type II plateau supernovae to examine their observed and physical properties. This dataset shows that these objects encompass a wide range of ~5 mag in their plateau luminosities, their expansion velocities ...
Barbon R.   +14 more
core   +2 more sources

SN 2023ixf in Messier 101: A Variable Red Supergiant as the Progenitor Candidate to a Type II Supernova

open access: yesThe Astrophysical Journal Letters, 2023
We present preexplosion optical and infrared (IR) imaging at the site of the type II supernova (SN II) 2023ixf in Messier 101 at 6.9 Mpc. We astrometrically registered a ground-based image of SN 2023ixf to archival Hubble Space Telescope (HST), Spitzer ...
Charles D. Kilpatrick   +19 more
doaj   +1 more source

Carbon Monoxide in type II supernovae

open access: yes, 2001
Infrared spectra of two type II supernovae 6 months after explosion are presented. The spectra exhibit a strong similarity to the observations of SN 1987A and other type II SNe at comparable epochs.
Allen   +23 more
core   +1 more source

Type II Supernova Spectral Diversity. II. Spectroscopic and Photometric Correlations [PDF]

open access: yesThe Astrophysical Journal, 2017
We present an analysis of observed trends and correlations between a large range of spectral and photometric parameters of more than 100 type II supernovae (SNe~II), during the photospheric phase. We define a common epoch for all SNe of 50 days post-explosion where the majority of the sample is likely to be under similar physical conditions.
Claudia P. Gutiérrez   +9 more
openaire   +8 more sources

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