The Infrared Light Curve of SN 2011fe in M101 and the Distance to M101
T. Matheson, R. R. Joyce, L. E. Allen, A. Saha, D. R. Silva, W. M., Wood-Vasey, J. J. Adams, R. E. Anderson, T. L. Beck, M. C. Bentz, M. A., Bershady, W. S. Binkert, K. Butler, M. A. Camarata, A. Eigenbrot, M. Everett,, J. S. Gallagher, P. M. Garnavich E. Glikman, D. Harbeck
TL;DR
This paper presents near-infrared light curves of SN 2011fe in M101, using the data to estimate the galaxy's distance, and compares different calibration methods for Type Ia supernovae.
Contribution
It provides detailed near-infrared light curves of SN 2011fe and derives a new distance estimate for M101 based on these observations.
Findings
Derived H-band magnitude at B-band maximum: 10.85 ± 0.04
Distance modulus for M101: 28.86 to 29.17 mag
Calibration method affects the distance estimate
Abstract
We present near infra-red light curves of supernova (SN) 2011fe in M101, including 34 epochs in H band starting fourteen days before maximum brightness in the B-band. The light curve data were obtained with the WIYN High-Resolution Infrared Camera (WHIRC). When the data are calibrated using templates of other Type Ia SNe, we derive an apparent H-band magnitude at the epoch of B-band maximum of 10.85 \pm 0.04. This implies a distance modulus for M101 that ranges from 28.86 to 29.17 mag, depending on which absolute calibration for Type Ia SNe is used.
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