2017A&A...602A.118D


C.D.S. - SIMBAD4 rel 1.7 - 2021.02.24CET21:39:38

2017A&A...602A.118D - Astronomy and Astrophysics, volume 602A, 118-118 (2017/6-1)

Two classes of fast-declining Type Ia supernovae.

DHAWAN S., LEIBUNDGUT B., SPYROMILIO J. and BLONDIN S.

Abstract (from CDS):

We aim to characterise a sample of fast-declining Type Ia supernovae (SN Ia) using their bolometric and near-infrared (NIR) properties. Based on these properties, we find that fast-declining SN Ia separate into two categories based on their bolometric and NIR properties. The peak bolometric luminosity (Lmax), the phase of the first maximum relative to the optical, the NIR peak luminosity, and the occurrence of a second maximum in the NIR distinguish a group of very faint SN Ia. Fast-declining supernovae show a large range of peak bolometric luminosities (Lmax differing by up to a factor of ∼8). All fast-declining SN Ia with Lmax<0.3x 1043erg/s are spectroscopically classified as 91bg-like and show only a single NIR peak. SNe with Lmax>0.5x1043erg/s appear to smoothly connect to normal SN Ia. The total ejecta mass (Mej) values for SNe with enough late time data are ≤1M, indicating a sub-Chandrasekhar mass progenitor for these SNe.

Abstract Copyright: © ESO, 2017

Journal keyword(s): supernovae: general - supernovae: general

Simbad objects: 20

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Number of rows : 20

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 SN 2005hk SN* 00 27 50.89 -01 11 53.3   15.92       SNIax 195 1
2 SN 2006gt SN* 00 56 17.30 -01 37 46.0     18.5     SNIap 44 1
3 iPTF 13ebh SN* 02 21 59.98 +33 16 13.7           SNIa 30 0
4 SN 2008hs SN* 02 25 29.62 +41 50 35.1           SNIa 21 1
5 SN 2003gs SN* 02 27 38.36 -01 09 35.4     14.0     SNIap 49 1
6 SN 2008R SN* 03 03 53.70 -11 59 39.4     15.5     SNIa 26 1
7 SN 2006mr SN* 03 22 42.84 -37 12 28.5     15.6     SNIap 53 1
8 SN 2005ke SN* 03 35 04.35 -24 56 38.8     17.2     SNIap 124 1
9 SN 2007on SN* 03 38 50.90 -35 34 30.0       14.9   SNIa 103 1
10 SN 2009F SN* 04 59 23.56 -11 07 50.1           SNIap 25 1
11 SN 2007ax SN* 08 22 43.26 +22 33 16.9     17.2     SNIap 50 1
12 SN 1999by SN* 09 21 52.07 +51 00 06.6   13.66       SNIap 262 1
13 SN 2002bo SN* 10 18 06.51 +21 49 41.7   13.95       SNIa 283 1
14 SN 2010Y SN* 10 51 03.90 +65 46 47.0           SNIa 20 1
15 SN 2005bl SN* 12 04 12.24 +20 24 24.6           SNIap 86 1
16 SN 1991bg SN* 12 25 03.70 +12 52 15.6   14.75 14.3     SNIapec 537 1
17 SN 2007N SN* 12 49 01.25 -09 27 10.2     17.3     SNIap 30 1
18 SN 2002cx SN* 13 13 49.72 +06 57 31.9   17.68       SNIapec 200 1
19 SN 2007ba SN* 15 16 41.814 +07 23 48.92     18.2     SNIap 42 1
20 SN 2008ha SN* 23 34 52.69 +18 13 35.4           SNIax 155 1

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2021.02.24-21:39:38

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