The Type la Supernova 2001V in NGC 3987
Abstract
CCD photometry of the type Ia SN 2001V occured in the edge-on spiral galaxy NGC 3987 is presented. The observations made through Johnson-Cousins BVRI filters were collected from Feb. 24 (t = -8 days, with respect to B-maximum), up to May 5 (t = +62 days). The light curves are analyzed with the revised Multi-Colour Light Curve Shape (MLCS) method by fitting template vectors to the observed light curves simultaneously. The reddening of SN 2001V is estimated to be E(B-V)=0.05 mag, while the galactic component is E(B-V) = 0.02 mag, suggesting that part of the reddening may be due to the ISM in the host galaxy. The Delta parameter in MLCS converged to -0.47 mag, indicating that this SN was overluminous relative to the majority of Type Ia SNe. The inferred distance to its host galaxy, NGC 3987, is 74.5 \pm 5 Mpc, which is in good agreement with recently determined kinematic distances, based on radial velocity corrected for Virgo-infall and Hubble constant H_0 = 65 km/s/Mpc.
Cite
@article{arxiv.astro-ph/0210186,
title = {The Type la Supernova 2001V in NGC 3987},
author = {J. Vinko and I. B. Biro and B. Csak and Sz. Csizmadia and A. Derekas and G. Furesz and Z. Heiner and K. Sarneczky and B. Sipocz and G. M. Szabo and R. Szabo and K. Sziladi and K. Szatmary},
journal= {arXiv preprint arXiv:astro-ph/0210186},
year = {2009}
}
Comments
6 pages, 4 figures, accepted in Astronomy and Astrophysics