Type-Ia Supernova SN 1995D in NGC 2962: Optical V, R, and I Band Photometry and Spectra

Details Type-Ia Supernova SN 1995D in NGC 2962: Optical V, R, and I Band Photometry and Spectra Type-Ia Supernova SN 1995D in NGC 2962: Optical V, R, and I Band Photometry and Spectra

Feb 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996pasj...48...51s&link_type=abstract

Publications of the Astronomical Society of Japan, v.48, p.51-57.

Astronomy and Astrophysics

Astronomy

12

Photometry, Spectroscopy, Stars: Supernovae, Supernovae: Individual (Sn1995D)

Scientific paper

Optical light curves in the V, R, and I bands, starting 10 days before the maximum light, and the optical spectra near to the V maximum phase of supernova SN 1995D in NGC 2962 are presented. The spectra taken near to the optical maximum are similar to the prototypical type-Ia supernova SN 1981B, and show no trace of the interstellar Na{I} D line. The expansion velocity at the maximum phase was 10000 +/- 200 km s (-1) . The supernova reached maximum light in the I band about four days earlier than in the V band. A distinct secondary peak is observed in the I band about 30 days after the V maximum. This secondary peak occurred about one week delayed from the published template light curve. A clear shoulder is detected in the R band light curve corresponding to the secondary peak in the I band. The initial rate of decline is slow [Delta m15(V) = 0.66 mag], and it is suggested that the supernova belongs to a group of the intrinsically brightest type-Ia supernovae. From the initial declining rate in the V band, we estimated the absolute magnitude MV to be -18.8 +/- 0.3 mag, and the distance modulus of the parent galaxy (NGC 2962) to be 32.2 +/- 0.3 mag.

Affiliated with

Also associated with

No associations

Rating

Type-Ia Supernova SN 1995D in NGC 2962: Optical V, R, and I Band Photometry and Spectra 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 Type-Ia Supernova SN 1995D in NGC 2962: Optical V, R, and I Band Photometry and Spectra, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Type-Ia Supernova SN 1995D in NGC 2962: Optical V, R, and I Band Photometry and Spectra will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-856118