Late Light Curves of Normal Type Ia Supernovae
Abstract
We present late-epoch optical photometry (BVRI) of seven normal/super-luminous Type Ia supernovae: SN 2000E, SN 2000ce, SN 2000cx, SN 2001C, SN 2001V, SN 2001bg, SN 2001dp. The photometry of these objects was obtained using a template subtraction method to eliminate galaxy light contamination during aperture photometry. We show the optical light curves of these supernovae out to epochs of up to ~640 days after the explosion of the supernova. We show a linear decline in these data during the epoch of 200-500 days after explosion with the decline rate in the B,V,& R bands equal to about 1.4 mag/100 days, but the decline rate of the I-band is much shallower at 0.94 mag/100 days.
Cite
@article{arxiv.astro-ph/0610084,
title = {Late Light Curves of Normal Type Ia Supernovae},
author = {Jessica C. Lair and Mark D. Leising and Peter A. Milne and G. Grant Williams},
journal= {arXiv preprint arXiv:astro-ph/0610084},
year = {2008}
}
Comments
33 pages, 11 figures, Accepted for publication in The Astronomical Journal