Young and massive binary progenitors of type Ia supernovae and their circumstellar matter

Izumi Hachisu, Mariko Kato, Ken'ichi Nomoto

Research output: Contribution to journalArticle

89 Citations (Scopus)

Abstract

We present new evolutionary models for Type Ia supernova (SN Ia) progenitors, introducing the mass-stripping effect on a main-sequence (MS) or slightly evolved companion star by winds from a mass-accreting white dwarf( WD). The mass stripping attenuates the rate of mass transfer from the companion to the WD. As a result, a very massive MS companion can avoid forming a common envelope and thus can increase the WD mass up until the SN Ia explosion. Including the mass-stripping effect, we follow binary evolutions of various WD + MS systems and obtain the parameter region in the initial donor mass-orbital period plane in which SNe Ia occur. The newly obtained SN Ia region extends to donor masses of 6 -7 M, although its extension depends on the efficiency of the mass-stripping effect. The stripped matter would mainly be distributed on the orbital plane and would form very massive circumstellar matter (CSM) around the SN Ia progenitor. This can explain the massive CSM around the Type Ia/IIn(IIa) supernovae SN 2002ic and SN 2005gj, as well as the tenuous CSM around the normal Type Ia supernova SN 2006X. Our new model suggests the presence of very young (≤108 yr) populations of SNe Ia, which is consistent with recent observational indications of young-population SNe Ia.

Original languageEnglish
Pages (from-to)1390-1404
Number of pages15
JournalAstrophysical Journal
Volume679
Issue number2
DOIs
Publication statusPublished - 2008 Jun 1

Fingerprint

stellar envelopes
supernovae
stripping
orbitals
companion stars
young population
young
mass transfer
explosions
explosion
indication
envelopes

Keywords

  • Binaries: close
  • Circumstellar matter
  • Stars: winds, outflows
  • Supernovae: individual (SN 2002ic, SN 2005gj, SN 2006X)

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Young and massive binary progenitors of type Ia supernovae and their circumstellar matter. / Hachisu, Izumi; Kato, Mariko; Nomoto, Ken'ichi.

In: Astrophysical Journal, Vol. 679, No. 2, 01.06.2008, p. 1390-1404.

Research output: Contribution to journalArticle

Hachisu, Izumi ; Kato, Mariko ; Nomoto, Ken'ichi. / Young and massive binary progenitors of type Ia supernovae and their circumstellar matter. In: Astrophysical Journal. 2008 ; Vol. 679, No. 2. pp. 1390-1404.
@article{528932b0b5d94b2abd74c4dc481723e8,
title = "Young and massive binary progenitors of type Ia supernovae and their circumstellar matter",
abstract = "We present new evolutionary models for Type Ia supernova (SN Ia) progenitors, introducing the mass-stripping effect on a main-sequence (MS) or slightly evolved companion star by winds from a mass-accreting white dwarf( WD). The mass stripping attenuates the rate of mass transfer from the companion to the WD. As a result, a very massive MS companion can avoid forming a common envelope and thus can increase the WD mass up until the SN Ia explosion. Including the mass-stripping effect, we follow binary evolutions of various WD + MS systems and obtain the parameter region in the initial donor mass-orbital period plane in which SNe Ia occur. The newly obtained SN Ia region extends to donor masses of 6 -7 M⊙, although its extension depends on the efficiency of the mass-stripping effect. The stripped matter would mainly be distributed on the orbital plane and would form very massive circumstellar matter (CSM) around the SN Ia progenitor. This can explain the massive CSM around the Type Ia/IIn(IIa) supernovae SN 2002ic and SN 2005gj, as well as the tenuous CSM around the normal Type Ia supernova SN 2006X. Our new model suggests the presence of very young (≤108 yr) populations of SNe Ia, which is consistent with recent observational indications of young-population SNe Ia.",
keywords = "Binaries: close, Circumstellar matter, Stars: winds, outflows, Supernovae: individual (SN 2002ic, SN 2005gj, SN 2006X)",
author = "Izumi Hachisu and Mariko Kato and Ken'ichi Nomoto",
year = "2008",
month = "6",
day = "1",
doi = "10.1086/586700",
language = "English",
volume = "679",
pages = "1390--1404",
journal = "Astrophysical Journal",
issn = "0004-637X",
publisher = "IOP Publishing Ltd.",
number = "2",

}

TY - JOUR

T1 - Young and massive binary progenitors of type Ia supernovae and their circumstellar matter

AU - Hachisu, Izumi

AU - Kato, Mariko

AU - Nomoto, Ken'ichi

PY - 2008/6/1

Y1 - 2008/6/1

N2 - We present new evolutionary models for Type Ia supernova (SN Ia) progenitors, introducing the mass-stripping effect on a main-sequence (MS) or slightly evolved companion star by winds from a mass-accreting white dwarf( WD). The mass stripping attenuates the rate of mass transfer from the companion to the WD. As a result, a very massive MS companion can avoid forming a common envelope and thus can increase the WD mass up until the SN Ia explosion. Including the mass-stripping effect, we follow binary evolutions of various WD + MS systems and obtain the parameter region in the initial donor mass-orbital period plane in which SNe Ia occur. The newly obtained SN Ia region extends to donor masses of 6 -7 M⊙, although its extension depends on the efficiency of the mass-stripping effect. The stripped matter would mainly be distributed on the orbital plane and would form very massive circumstellar matter (CSM) around the SN Ia progenitor. This can explain the massive CSM around the Type Ia/IIn(IIa) supernovae SN 2002ic and SN 2005gj, as well as the tenuous CSM around the normal Type Ia supernova SN 2006X. Our new model suggests the presence of very young (≤108 yr) populations of SNe Ia, which is consistent with recent observational indications of young-population SNe Ia.

AB - We present new evolutionary models for Type Ia supernova (SN Ia) progenitors, introducing the mass-stripping effect on a main-sequence (MS) or slightly evolved companion star by winds from a mass-accreting white dwarf( WD). The mass stripping attenuates the rate of mass transfer from the companion to the WD. As a result, a very massive MS companion can avoid forming a common envelope and thus can increase the WD mass up until the SN Ia explosion. Including the mass-stripping effect, we follow binary evolutions of various WD + MS systems and obtain the parameter region in the initial donor mass-orbital period plane in which SNe Ia occur. The newly obtained SN Ia region extends to donor masses of 6 -7 M⊙, although its extension depends on the efficiency of the mass-stripping effect. The stripped matter would mainly be distributed on the orbital plane and would form very massive circumstellar matter (CSM) around the SN Ia progenitor. This can explain the massive CSM around the Type Ia/IIn(IIa) supernovae SN 2002ic and SN 2005gj, as well as the tenuous CSM around the normal Type Ia supernova SN 2006X. Our new model suggests the presence of very young (≤108 yr) populations of SNe Ia, which is consistent with recent observational indications of young-population SNe Ia.

KW - Binaries: close

KW - Circumstellar matter

KW - Stars: winds, outflows

KW - Supernovae: individual (SN 2002ic, SN 2005gj, SN 2006X)

UR - http://www.scopus.com/inward/record.url?scp=46349105034&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=46349105034&partnerID=8YFLogxK

U2 - 10.1086/586700

DO - 10.1086/586700

M3 - Article

AN - SCOPUS:46349105034

VL - 679

SP - 1390

EP - 1404

JO - Astrophysical Journal

JF - Astrophysical Journal

SN - 0004-637X

IS - 2

ER -