2018MNRAS.473.1633K


C.D.S. - SIMBAD4 rel 1.7 - 2021.06.17CEST02:25:12

2018MNRAS.473.1633K - Mon. Not. R. Astron. Soc., 473, 1633-1643 (2018)

Cas A and the Crab were not stellar binaries at death.

KOCHANEK C.S.

Abstract (from CDS):

The majority of massive stars are in binaries, which implies that many core collapse supernovae should be binaries at the time of the explosion. Here we show that the three most recent, local (visual) SNe (the Crab, Cas A and SN 1987A) were not stellar binaries at death, with limits on the initial mass ratios of q = M2/M1 ≲ 0.1. No quantitative limits have previously been set for Cas A and the Crab, while for SN 1987A we merely updated existing limits in view of new estimates of the dust content. The lack of stellar companions to these three ccSNe implies a 90 per cent confidence upper limit on the q ≳ 0.1 binary fraction at death of fb < 44 per cent. In a passively evolving binary model (meaning no binary interactions), with a flat mass ratio distribution and a Salpeter IMF, the resulting 90 per cent confidence upper limit on the initial binary fraction of F < 63 per cent is in tension with observed massive binary statistics. Allowing a significant fraction fM ~= 25 per cent of stellar binaries to merge reduces the tension, with F < 63({1-f}M)^{-1}{ per cent} ∼eq 81{ per cent}, but allowing for the significant fraction in higher order systems (triples, etc.) reintroduces the tension. That Cas A was not a stellar binary at death also shows that a surviving massive binary companion at the time of the explosion is not necessary for producing a Type IIb SNe. Much larger surveys for binary companions to Galactic SNe will become feasible with the release of the full Gaia proper motion and parallax catalogues providing a powerful probe of the statistics of such binaries and their role in massive star evolution, neutron star velocity distributions and runaway stars.

Abstract Copyright: © 2017 The Author Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: massive - supernovae: general - supernovae: individual: Cas A, Crab, SN 1987A

Simbad objects: 17

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Number of rows : 17

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 2002ap SN* 01 36 23.85 +15 45 13.2   13.11 14.54     SNIc-BL 511 1
2 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5979 1
3 V* CM Tau Psr 05 34 31.93830 +22 00 52.1758           ~ 4901 1
4 M 1 SNR 05 34 31.94 +22 00 52.2           ~ 5748 4
5 SN 1987A SN* 05 35 28.020 -69 16 11.07           SNIIpec 4592 2
6 PSR J0538+2813 Psr 05 38 25.06 +28 17 11.0           ~ 174 2
7 SNR G180.0-01.7 SNR 05 39 00.000 +27 50 00.00           ~ 220 2
8 SN 1993J SN* 09 55 24.77476 +69 01 13.7026   10.8 12.0     SNIIb 1291 1
9 SN 2008ax SN* 12 30 40.80 +41 38 16.1   23.6 23.5 14.1 22.6 SNIIb 218 1
10 SN 2005cs SN* 13 29 53.37 +47 10 28.2   14.5       SNIIP 350 1
11 SN 1994I SN* 13 29 54.072 +47 11 30.50     12.9     SNIc 584 1
12 SN 2011dh SN* 13 30 05.10555 +47 10 10.9227           SNIIb 306 1
13 iPTF 13bvn SN* 15 00 00.152 +01 52 53.17           SNIb 118 0
14 SN 2001ig SN* 22 57 30.69 -41 02 25.9     14.5     SNIIb 149 1
15 NAME Cas A SNR 23 23 24.000 +58 48 54.00     14.30     ~ 2507 1
16 SN 2008bk SN* 23 57 50.42 -32 33 21.5           SNIIP 108 2
17 NAME Local Group GrG ~ ~           ~ 7291 0

    Equat.    Gal    SGal    Ecl

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2021.06.17-02:25:12

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