Early-time photometry and spectroscopy of the fast evolving SN 2006aj associated with GRB 060218

M. Modjaz, K. Z. Stanek, P. M. Garnavich, P. Berlind, S. Blondin, W. Brown, M. Calkins, P. Challis, A. M. Diamond-Stanic, H. Hao, M. Hicken, R. P. Kirshner, J. L. Prieto

    Research output: Contribution to journalArticle

    Abstract

    We present early photometric and spectroscopic data on the afterglow of GRB 060218 and report the evolution of the underlying supernova SN 2006aj. Our data span a time range of 4-23 days after the GRB and clearly establish that SN 2006aj is a fast-evolving broad-lined Type Ic SN with an extremely short rise time (∼10 days) and a large optical peak luminosity (Mv = -18.7 mag). The supernova properties are deduced well since the gamma-ray burst (GRB) afterglow does not contribute a significant amount to the total light output. The spectra show broad lines indicative of large expansion velocities but are better matched by those of SN 2002ap and SN 1997ef (not associated with a GRB) than those of the prototypical GRB-related SN 1998bw. We refine the redshift estimate to z = 0.03351 ±0.00007. The host galaxy is a low-metallicity dwarf galaxy (with MV, host = -16.0 mag), similar to host galaxies of other GRB-associated SNe.

    Original languageEnglish (US)
    JournalAstrophysical Journal
    Volume645
    Issue number1 II
    DOIs
    StatePublished - Jul 1 2006

    Fingerprint

    gamma ray bursts
    photometry
    spectroscopy
    afterglows
    supernovae
    galaxies
    dwarf galaxies
    metallicity
    luminosity
    expansion
    output
    estimates

    Keywords

    • Galaxies: distances and redshifts
    • Gamma rays: bursts
    • Supernovae: general
    • Supernovae: individual (SN 2006aj)

    ASJC Scopus subject areas

    • Space and Planetary Science

    Cite this

    Modjaz, M., Stanek, K. Z., Garnavich, P. M., Berlind, P., Blondin, S., Brown, W., ... Prieto, J. L. (2006). Early-time photometry and spectroscopy of the fast evolving SN 2006aj associated with GRB 060218. Astrophysical Journal, 645(1 II). https://doi.org/10.1086/505906

    Early-time photometry and spectroscopy of the fast evolving SN 2006aj associated with GRB 060218. / Modjaz, M.; Stanek, K. Z.; Garnavich, P. M.; Berlind, P.; Blondin, S.; Brown, W.; Calkins, M.; Challis, P.; Diamond-Stanic, A. M.; Hao, H.; Hicken, M.; Kirshner, R. P.; Prieto, J. L.

    In: Astrophysical Journal, Vol. 645, No. 1 II, 01.07.2006.

    Research output: Contribution to journalArticle

    Modjaz, M, Stanek, KZ, Garnavich, PM, Berlind, P, Blondin, S, Brown, W, Calkins, M, Challis, P, Diamond-Stanic, AM, Hao, H, Hicken, M, Kirshner, RP & Prieto, JL 2006, 'Early-time photometry and spectroscopy of the fast evolving SN 2006aj associated with GRB 060218', Astrophysical Journal, vol. 645, no. 1 II. https://doi.org/10.1086/505906
    Modjaz M, Stanek KZ, Garnavich PM, Berlind P, Blondin S, Brown W et al. Early-time photometry and spectroscopy of the fast evolving SN 2006aj associated with GRB 060218. Astrophysical Journal. 2006 Jul 1;645(1 II). https://doi.org/10.1086/505906
    Modjaz, M. ; Stanek, K. Z. ; Garnavich, P. M. ; Berlind, P. ; Blondin, S. ; Brown, W. ; Calkins, M. ; Challis, P. ; Diamond-Stanic, A. M. ; Hao, H. ; Hicken, M. ; Kirshner, R. P. ; Prieto, J. L. / Early-time photometry and spectroscopy of the fast evolving SN 2006aj associated with GRB 060218. In: Astrophysical Journal. 2006 ; Vol. 645, No. 1 II.
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    AU - Berlind, P.

    AU - Blondin, S.

    AU - Brown, W.

    AU - Calkins, M.

    AU - Challis, P.

    AU - Diamond-Stanic, A. M.

    AU - Hao, H.

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    N2 - We present early photometric and spectroscopic data on the afterglow of GRB 060218 and report the evolution of the underlying supernova SN 2006aj. Our data span a time range of 4-23 days after the GRB and clearly establish that SN 2006aj is a fast-evolving broad-lined Type Ic SN with an extremely short rise time (∼10 days) and a large optical peak luminosity (Mv = -18.7 mag). The supernova properties are deduced well since the gamma-ray burst (GRB) afterglow does not contribute a significant amount to the total light output. The spectra show broad lines indicative of large expansion velocities but are better matched by those of SN 2002ap and SN 1997ef (not associated with a GRB) than those of the prototypical GRB-related SN 1998bw. We refine the redshift estimate to z = 0.03351 ±0.00007. The host galaxy is a low-metallicity dwarf galaxy (with MV, host = -16.0 mag), similar to host galaxies of other GRB-associated SNe.

    AB - We present early photometric and spectroscopic data on the afterglow of GRB 060218 and report the evolution of the underlying supernova SN 2006aj. Our data span a time range of 4-23 days after the GRB and clearly establish that SN 2006aj is a fast-evolving broad-lined Type Ic SN with an extremely short rise time (∼10 days) and a large optical peak luminosity (Mv = -18.7 mag). The supernova properties are deduced well since the gamma-ray burst (GRB) afterglow does not contribute a significant amount to the total light output. The spectra show broad lines indicative of large expansion velocities but are better matched by those of SN 2002ap and SN 1997ef (not associated with a GRB) than those of the prototypical GRB-related SN 1998bw. We refine the redshift estimate to z = 0.03351 ±0.00007. The host galaxy is a low-metallicity dwarf galaxy (with MV, host = -16.0 mag), similar to host galaxies of other GRB-associated SNe.

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    KW - Supernovae: individual (SN 2006aj)

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