English

BVRI Photometry of SN 2011fe in M101

Cosmology and Nongalactic Astrophysics 2012-04-13 v2

Abstract

We present BVRI photometry of supernova 2011fe in M101 from 2.9 to 182 days after the explosion. The light curves and color evolution show that SN 2011fe belongs to the "normal" subset of type Ia supernovae, with Δm15(B)=1.21±0.03\Delta m_{15}(B) = 1.21 \pm 0.03 mag. After correcting for extinction and adopting a distance modulus of (mM)=29.10(m - M) = 29.10 mag to M101, we derive absolute magnitudes MB=19.21M_B = -19.21, MV=19.19M_V = -19.19, MR=19.18M_R = -19.18 and MI=18.94M_I = -18.94. We compare visual measurements of this event to our CCD photometry and find evidence for a systematic difference based on color.

Keywords

Cite

@article{arxiv.1203.4013,
  title  = {BVRI Photometry of SN 2011fe in M101},
  author = {Michael W. Richmond and Horace A. Smith},
  journal= {arXiv preprint arXiv:1203.4013},
  year   = {2012}
}

Comments

revised version; accepted for publication in the Journal of the American Association of Variable Star Observers