Optical and infrared observations of the Type IIP SN2002hh from day 3 to 397

Details Optical and infrared observations of the Type IIP SN2002hh from day 3 to 397 Optical and infrared observations of the Type IIP SN2002hh from day 3 to 397

2006-02-16

arxiv.org/abs/astro-ph/0602372v2

Mon.Not.Roy.Astron.Soc.368:1169-1195,2006

Astronomy and Astrophysics

Astrophysics

32 pages, 30 figures, accepted for publication in MNRAS

Scientific paper

10.1111/j.1365-2966.2006.10204.x

We present optical and infrared (IR) observations of the type IIP SN2002hh from 3 to 397 days after explosion. The optical spectroscopic (4-397d) and photometric (3-278d) data are complemented by spectroscopic (137-381d) and photometric (137-314d) data acquired at IR wavelengths. This is the first time L-band spectra have ever been successfully obtained for a supernova at a distance beyond the Local Group. The VRI light curves in the first 40 days reveal SN2002hh to be a SN IIP (plateau) - the most common of all core-collapse supernovae. SN2002hh is one of the most highly extinguished supernovae ever investigated. To provide a good match between its early-time spectrum and a coeval spectrum of the Type IIP SN1999em, as well as maintaining consistency with KI interstellar absorption, we invoke a 2-component extinction model. One component is due to the combined effect of the interstellar medium of our Milky Way Galaxy and the SN host galaxy, while the other component is due to a "dust pocket" where the grains have a mean size smaller than in the interstellar medium. The early-time optical light curves of SNe 1999em and 2002hh are generally well-matched, as are the radioactive tails of these two SNe and SN1987A. The late-time similarity of the SN2002hh optical light curves to those of SN1987A, together with measurements of the optical/IR luminosity and [FeII] 1.257mu emission indicate that 0.07 +- 0.02 Msun of Ni 56 was ejected by SN2002hh. [... ABRIDGED...] From the [OI] 6300,6364 A doublet luminosity we infer a 16-18 Msun main-sequence progenitor star. The progenitor of SN2002hh was probably a red supergiant with a substantial, dusty wind.

Affiliated with

Also associated with

No associations

Rating

Optical and infrared observations of the Type IIP SN2002hh from day 3 to 397 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Optical and infrared observations of the Type IIP SN2002hh from day 3 to 397, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical and infrared observations of the Type IIP SN2002hh from day 3 to 397 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-102789