2015A&A...579A..95K


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.13CEST07:08:32

2015A&A...579A..95K - Astronomy and Astrophysics, volume 579A, 95-95 (2015/7-1)

Nebular phase observations of the Type-Ib supernova iPTF 13bvn favour a binary progenitor.

KUNCARAYAKTI H., MAEDA K., BERSTEN M.C., FOLATELLI G., MORRELL N., HSIAO E.Y., GONZALEZ-GAITAN S., ANDERSON J.P., HAMUY M., DE JAEGER T., GUTIERREZ C.P. and KAWABATA K.S.

Abstract (from CDS):

We present and analyse late-time observations of the Type-Ib supernova with possible pre-supernova progenitor detection, iPTF 13bvn, which were done ∼300 days after the explosion. We discuss them in the context of constraints on the supernova's progenitor. Previous studies have proposed two possible natures for the progenitor of the supernova, i.e. a massive Wolf-Rayet star or a lower-mass star in a close binary system. Our observations show that the supernova has entered the nebular phase, with the spectrum dominated by [MgI]λλ4571, [OI]λλ6300, 6364, and [CaII]λλ7291, 7324 emission lines. We measured the emission line fluxes to estimate the core oxygen mass and compared the [OI]/[CaII] line ratio with other supernovae. The core oxygen mass of the supernova progenitor was estimated to be ≲0.7M, which implies initial progenitor mass that does not exceed ∼15-17M. Since the derived mass is too low for a single star to become a Wolf-Rayet star, this result lends more support to the binary nature of the progenitor star of iPTF13bvn. The comparison of [OI]/[CaII] line ratio with other supernovae also shows that iPTF13bvn appears to be in close association with the lower mass progenitors of stripped-envelope and Type-II supernovae.

Abstract Copyright:

Journal keyword(s): supernovae: general - supernovae: individual: iPTF13bvn - stars: massive

Simbad objects: 16

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Number of rows : 16

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 SN 2002ap SN* 01 36 23.85 +15 45 13.2   13.11 14.54     SNIc-BL 491 1
2 SN 2007Y SN* 03 02 35.92 -22 53 50.1     17.5     SNIb 87 1
3 SN 2006aj SN* 03 21 39.670 +16 52 02.27 17.96 19.11 17.40     SNIc-BL 828 1
4 SN 1996N SN* 03 38 55.37 -26 20 04.0       16   SNIb 42 2
5 SN 2004gq SN* 05 12 04.81 -15 40 54.2     15.5     SNIb 66 1
6 SN 2008D SN* 09 09 30.625 +33 08 20.16     17.5     SNIb 332 1
7 SN 1993J SN* 09 55 24.77476 +69 01 13.7026   10.8 12.0     SNIIb 1253 1
8 SN 2005bf SN* 10 23 56.99 -03 11 29.3     18.0     SNIb 166 1
9 SN 2008ax SN* 12 30 40.80 +41 38 16.1   23.6 23.5 14.1 22.6 SNIIb 207 1
10 SN 1990I SN* 12 44 50.26 -40 43 36.5   16.7 16.7     SNIb 55 1
11 * 108 Vir * 14 45 30.2060174766 +00 43 02.178514704   5.656 5.665     B9.5V 143 0
12 iPTF 13bvn SN* 15 00 00.152 +01 52 53.17           SNIb 105 0
13 NGC 5806 AGN 15 00 00.432 +01 53 28.56   12.40 11.70 10.94 11.6 ~ 238 1
14 SN 2010as SN* 15 49 49.23 -29 23 09.7           SNIb/c 18 1
15 SN 2001dh SN* 20 17 24.16 -38 40 37.4     15.5     SNII 11 1
16 SN 2009jf SN* 23 04 52.98 +12 19 59.5           SNIb 69 1

    Equat.    Gal    SGal    Ecl

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2020.07.13-07:08:32

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