Evidence for Supernova Signatures in the Spectrum of the Late-time Bump of the Optical Afterglow of GRB 021211

Abstract

We present photometric and spectroscopic observations of the gamma-ray burst GRB 021211 obtained during the late stages of its afterglow. The light curve shows a rebrightening occurring ~25 days after the GRB. The analysis of a VLT spectrum obtained during the bump (27 days after the GRB) reveals a suggestive resemblance with the spectrum of the prototypical type-Ic SN 1994I, obtained about ~10 days past maximum light. Particularly we have measured a strong, broad absorption feature at 3770 A, which we have identified with Ca II blueshifted by ~14400 km/s, thus indicating that a supernova (SN) component is indeed powering the `bump' in the afterglow decay. Assuming SN 1994I as a template, the spectroscopic and photometric data together indicate that the SN and GRB explosions were at most separated by a few days. Our results suggest that GRBs might be associated also to standard type-Ic supernovae.

6 pages, 4 color figures. Accepted for publication in A&A Letters. Fig. 4 does not appair in the A&A version due to space restrictions. Includes aa.cls and txfonts.sty

References in corpus (26)

• Discovery of the peculiar supernova 1998bw in the error box of GRB980425
• Beaming in Gamma-Ray Bursts: Evidence for a Standard Energy Reservoir
• The unusual afterglow of GRB 980326: evidence for the gamma-ray burst/supernova connection
• The metamorphosis of SN1998bw
• Optical Photometry of the Type Ia SN 1999ee and the Type Ib/c SN 1999ex in IC 5179
• Dust sublimation by GRBs and its implications
• Gamma-Ray Bursts and Type Ic Supernovae: SN 1998bw
• The Distance to SN 1999em from the Expanding Photosphere Method
• Observation of X-ray lines from a Gamma-Ray Burst (GRB991216): Evidence of Moving Ejecta from the Progenitor
• The afterglow of GRB 021004: surfing on density waves
• Spectroscopy of the Host Galaxy of the Gamma--Ray Burst 980703
• The properties of the peculiar Type Ia SN~1991bg. Analysis and discussion of two years of observations
• Detection of a supernova signature associated with GRB 011121
• Evidence for Supernova Signatures in the Spectrum of the Late-time Bump of the Optical Afterglow of GRB 021211
• The Supernova-Gamma Ray Burst Connection
• Discovery of Early Optical Emission from GRB 021211
• SN1997cy/GRB970514 - A New Piece in the GRB Puzzle?
• The Early Light Curve of the Optical Afterglow of GRB 021211
• Variability in GRB Afterglows and GRB 021004
• Absorption Systems in the Spectrum of GRB 021004
• Discovery of GRB 020405 and its Late Red Bump
• Dust Echos from Gamma Ray Bursts
• The optical afterglow of GRB 000911: evidence for an associated supernova?
• SN1999E: Another piece in the SN-GRB connection puzzle
• A flattening in the Optical Light Curve of SN 2002ap
• Colors and luminosities of the optical afterglows of the gamma-ray bursts

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