Spectroscopic discovery of the supernova 2003dh associated with GRB 030329

K. Z. Stanek, T. Matheson, P. M. Garnavich, P. Martini, P. Berlind, N. Caldwell, P. Challis, W. R. Brown, R. Schild, K. Krisciunas, M. L. Calkins, J. C. Lee, N. Hathi, R. A. Jansen, Rogier Windhorst, L. Echevarria, D. J. Eisenstein, B. Pindor, E. W. Olszewski, P. Harding & 2 others S. T. Holland, D. Bersier

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Abstract

We present early observations of the afterglow of GRB 030329 and the spectroscopic discovery of its associatedsupernova SN 2003dh. We obtained spectra of the afterglow of GRB 030329 each night from March 30.12 (0.6 days after the burst) to April 8.13 (UT) (9.6 days after the burst). The spectra cover a wavelength range of 350-850 nm. The early spectra consist of a power-law continuum (Fv ∝ v-0.9) with narrow emission lines originating from H II regions in the host galaxy, indicating a low redshift of z = 0.1687. However, our spectra taken after 2003 April 5 show broad peaks in flux characteristic of a supernova. Correcting for the afterglow emission, we find that the spectrum of the supernova is remarkably similar to the Type Ic "hypernova" SN 1998bw. While the presence of supernovae has been inferred from the light curves and colors of gamma-ray burst afterglows in the past, this is the first direct, spectroscopic confirmation that a subset of classical gamma-ray bursts originate from supernovae.

Original languageEnglish (US)
JournalAstrophysical Journal
Volume591
Issue number1 II
DOIs
StatePublished - Jul 1 2003

Fingerprint

supernovae
afterglows
gamma ray bursts
bursts
H II regions
night
light curve
set theory
power law
galaxies
continuums
wavelength
color
wavelengths

Keywords

  • Galaxies: distances and redshifts
  • Gamma rays: bursts
  • Supernovae: general
  • Supernovae: individual (SN 2003dh)

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Stanek, K. Z., Matheson, T., Garnavich, P. M., Martini, P., Berlind, P., Caldwell, N., ... Bersier, D. (2003). Spectroscopic discovery of the supernova 2003dh associated with GRB 030329. Astrophysical Journal, 591(1 II). https://doi.org/10.1086/376976

Spectroscopic discovery of the supernova 2003dh associated with GRB 030329. / Stanek, K. Z.; Matheson, T.; Garnavich, P. M.; Martini, P.; Berlind, P.; Caldwell, N.; Challis, P.; Brown, W. R.; Schild, R.; Krisciunas, K.; Calkins, M. L.; Lee, J. C.; Hathi, N.; Jansen, R. A.; Windhorst, Rogier; Echevarria, L.; Eisenstein, D. J.; Pindor, B.; Olszewski, E. W.; Harding, P.; Holland, S. T.; Bersier, D.

In: Astrophysical Journal, Vol. 591, No. 1 II, 01.07.2003.

Research output: Contribution to journalArticle

Stanek, KZ, Matheson, T, Garnavich, PM, Martini, P, Berlind, P, Caldwell, N, Challis, P, Brown, WR, Schild, R, Krisciunas, K, Calkins, ML, Lee, JC, Hathi, N, Jansen, RA, Windhorst, R, Echevarria, L, Eisenstein, DJ, Pindor, B, Olszewski, EW, Harding, P, Holland, ST & Bersier, D 2003, 'Spectroscopic discovery of the supernova 2003dh associated with GRB 030329', Astrophysical Journal, vol. 591, no. 1 II. https://doi.org/10.1086/376976
Stanek KZ, Matheson T, Garnavich PM, Martini P, Berlind P, Caldwell N et al. Spectroscopic discovery of the supernova 2003dh associated with GRB 030329. Astrophysical Journal. 2003 Jul 1;591(1 II). https://doi.org/10.1086/376976
Stanek, K. Z. ; Matheson, T. ; Garnavich, P. M. ; Martini, P. ; Berlind, P. ; Caldwell, N. ; Challis, P. ; Brown, W. R. ; Schild, R. ; Krisciunas, K. ; Calkins, M. L. ; Lee, J. C. ; Hathi, N. ; Jansen, R. A. ; Windhorst, Rogier ; Echevarria, L. ; Eisenstein, D. J. ; Pindor, B. ; Olszewski, E. W. ; Harding, P. ; Holland, S. T. ; Bersier, D. / Spectroscopic discovery of the supernova 2003dh associated with GRB 030329. In: Astrophysical Journal. 2003 ; Vol. 591, No. 1 II.
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AU - Matheson, T.

AU - Garnavich, P. M.

AU - Martini, P.

AU - Berlind, P.

AU - Caldwell, N.

AU - Challis, P.

AU - Brown, W. R.

AU - Schild, R.

AU - Krisciunas, K.

AU - Calkins, M. L.

AU - Lee, J. C.

AU - Hathi, N.

AU - Jansen, R. A.

AU - Windhorst, Rogier

AU - Echevarria, L.

AU - Eisenstein, D. J.

AU - Pindor, B.

AU - Olszewski, E. W.

AU - Harding, P.

AU - Holland, S. T.

AU - Bersier, D.

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N2 - We present early observations of the afterglow of GRB 030329 and the spectroscopic discovery of its associatedsupernova SN 2003dh. We obtained spectra of the afterglow of GRB 030329 each night from March 30.12 (0.6 days after the burst) to April 8.13 (UT) (9.6 days after the burst). The spectra cover a wavelength range of 350-850 nm. The early spectra consist of a power-law continuum (Fv ∝ v-0.9) with narrow emission lines originating from H II regions in the host galaxy, indicating a low redshift of z = 0.1687. However, our spectra taken after 2003 April 5 show broad peaks in flux characteristic of a supernova. Correcting for the afterglow emission, we find that the spectrum of the supernova is remarkably similar to the Type Ic "hypernova" SN 1998bw. While the presence of supernovae has been inferred from the light curves and colors of gamma-ray burst afterglows in the past, this is the first direct, spectroscopic confirmation that a subset of classical gamma-ray bursts originate from supernovae.

AB - We present early observations of the afterglow of GRB 030329 and the spectroscopic discovery of its associatedsupernova SN 2003dh. We obtained spectra of the afterglow of GRB 030329 each night from March 30.12 (0.6 days after the burst) to April 8.13 (UT) (9.6 days after the burst). The spectra cover a wavelength range of 350-850 nm. The early spectra consist of a power-law continuum (Fv ∝ v-0.9) with narrow emission lines originating from H II regions in the host galaxy, indicating a low redshift of z = 0.1687. However, our spectra taken after 2003 April 5 show broad peaks in flux characteristic of a supernova. Correcting for the afterglow emission, we find that the spectrum of the supernova is remarkably similar to the Type Ic "hypernova" SN 1998bw. While the presence of supernovae has been inferred from the light curves and colors of gamma-ray burst afterglows in the past, this is the first direct, spectroscopic confirmation that a subset of classical gamma-ray bursts originate from supernovae.

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