The GRB 060218/SN 2006aj event in the context of other Gamma-Ray Burst Supernovae

Details The GRB 060218/SN 2006aj event in the context of other Gamma-Ray Burst Supernovae The GRB 060218/SN 2006aj event in the context of other Gamma-Ray Burst Supernovae

2006-05-02

arxiv.org/abs/astro-ph/0605058v3

Astronomy and Astrophysics

Astrophysics

accepted for publication in A&A, updated references

Scientific paper

10.1051/0004-6361:20065530

The supernova SN 2006aj associated with GRB 060218 is the second-closest GRB-SN observed to date (z=0.033). We present Very Large Telescope, Liverpool Telescope, and Katzman Automatic Imaging Telescope multi-color photometry of SN 2006aj. This supernova is found to be subluminous and rapidly evolving. Its early light curve includes an additional wavelength-dependent component, which can be interpreted as shock break-out. We compare the photometric evolution of multi-band light curves with the corresponding properties of the present sample of more than 10 GRB-SNe with precisely known redshifts. Using host-galaxy extinction measurements, we derive extinction-corrected GRB-SN luminosities and place SN 2006aj in the context of this GRB-selected supernova sample as well as in the context of local stripped-envelope supernovae.

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