Type Ib/c supernovae with and without gamma-ray bursts

Maryam Modjaz

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    While the connection between Long Gamma-Ray Bursts (GRBs) and Type Ib/c Supernovae (SNe Ib/c) from stripped stars has been well-established, one key outstanding question is what conditions and factors lead to each kind of explosion in massive stripped stars. One promising line of attack is to investigate what sets apart SNe Ib/c with GRBs from those without GRBs. Here, I briefly present two observational studies that probe the SN properties and the environmental metallicities of SNe Ib/c (specifically broad-lined SNe Ic) with and without GRBs. I present an analysis of expansion velocities based on published spectra and on the homogeneous spectroscopic CfA data set of over 70 SNe of Types IIb, Ib, Ic and Ic-bl, which triples the world supply of well-observed Stripped SNe. Moreover, I demonstrate that a meta-analysis of the three published SN 1b/c metallicity data sets when including only values at the SN positions to probe natal oxygen abundances, indicates at very high significance that indeed SNe Ic erupt from more metal-rich environments than SNe Ib, while SNe Ic-bl with GRBs still prefer, on average, more metal-poor sites than those without GRBs.

    Original languageEnglish (US)
    Title of host publicationDeath of Massive Stars: Supernovae and Gamma-Ray Bursts
    Pages207-211
    Number of pages5
    Volume7
    EditionS279
    DOIs
    StatePublished - Apr 2011

    Publication series

    NameProceedings of the International Astronomical Union
    NumberS279
    Volume7
    ISSN (Print)17439213
    ISSN (Electronic)17439221

    Fingerprint

    gamma ray bursts
    supernovae
    metallicity
    probes
    massive stars
    metals
    attack
    explosions
    stars
    expansion
    oxygen

    Keywords

    • (stars:) supernovae: general
    • gamma rays: bursts

    ASJC Scopus subject areas

    • Astronomy and Astrophysics

    Cite this

    Modjaz, M. (2011). Type Ib/c supernovae with and without gamma-ray bursts. In Death of Massive Stars: Supernovae and Gamma-Ray Bursts (S279 ed., Vol. 7, pp. 207-211). (Proceedings of the International Astronomical Union; Vol. 7, No. S279). https://doi.org/10.1017/S1743921312012938

    Type Ib/c supernovae with and without gamma-ray bursts. / Modjaz, Maryam.

    Death of Massive Stars: Supernovae and Gamma-Ray Bursts. Vol. 7 S279. ed. 2011. p. 207-211 (Proceedings of the International Astronomical Union; Vol. 7, No. S279).

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Modjaz, M 2011, Type Ib/c supernovae with and without gamma-ray bursts. in Death of Massive Stars: Supernovae and Gamma-Ray Bursts. S279 edn, vol. 7, Proceedings of the International Astronomical Union, no. S279, vol. 7, pp. 207-211. https://doi.org/10.1017/S1743921312012938
    Modjaz M. Type Ib/c supernovae with and without gamma-ray bursts. In Death of Massive Stars: Supernovae and Gamma-Ray Bursts. S279 ed. Vol. 7. 2011. p. 207-211. (Proceedings of the International Astronomical Union; S279). https://doi.org/10.1017/S1743921312012938
    Modjaz, Maryam. / Type Ib/c supernovae with and without gamma-ray bursts. Death of Massive Stars: Supernovae and Gamma-Ray Bursts. Vol. 7 S279. ed. 2011. pp. 207-211 (Proceedings of the International Astronomical Union; S279).
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