SIMBAD references

2013ApJ...772L..17T - Astrophys. J., 772, L17 (2013/August-1)

A luminous and fast-expanding type Ib supernova SN 2012au.

TAKAKI K., KAWABATA K.S., YAMANAKA M., MAEDA K., TANAKA M., AKITAYA H., FUKAZAWA Y., ITOH R., KINUGASA K., MORITANI Y., OHSUGI T., SASADA M., UEMURA M., UENO I., UI T., URANO T., YOSHIDA M. and NOMOTO K.

Abstract (from CDS):

We present a set of photometric and spectroscopic observations of a bright Type Ib supernova SN 2012au from -6 days until ∼ + 150 days after maximum. The shape of its early R-band light curve is similar to that of an average Type Ib/c supernova. The peak absolute magnitude is MR= -18.7 ±0.2 mag, which suggests that this supernova belongs to a very luminous group among Type Ib supernovae. The line velocity of He I λ5876 is about 15,000 km/s around maximum, which is much faster than that in a typical Type Ib supernova. From the quasi-bolometric peak luminosity of (6.7 ±1.3)x1042 erg/s, we estimate the 56Ni mass produced during the explosion as ∼0.30 M. We also give a rough constraint to the ejecta mass 5-7 M and the kinetic energy (7-18)x1051 erg. We find a weak correlation between the peak absolute magnitude and He I velocity among Type Ib SNe. The similarities to SN 1998bw in the density structure inferred from the light-curve model as well as the large peak bolometric luminosity suggest that SN 2012au had properties similar to energetic Type Ic supernovae.

Abstract Copyright:

Journal keyword(s): supernovae: individual: SN 2012au

Simbad objects: 20

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2021.05.13-04:26:42

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