The GRB 060218/SN 2006aj event in the context of other gamma-ray burst supernovae

Ferrero, P.; Kann, D. A.; Zeh, A.; Klose, S.; Pian, E.; Palazzi, E.; Masetti, N.; Hartmann, D. H.; Sollerman, J.; Deng, J.; Filippenko, A. V.; Greiner, J.; Hughes, M. A.; Mazzali, P.; Li, W.; Rol, E.; Smith, R. J.; Tanvir, N. R.
Bibliographical reference

Astronomy and Astrophysics, Volume 457, Issue 3, October III 2006, pp.857-864

Advertised on:
10
2006
Number of authors
18
IAC number of authors
0
Citations
109
Refereed citations
100
Description
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.