Observations of the M82 SN 2014J with the Kilodegree Extremely Little Telescope

Abstract

We report observations of the bright M82 supernova 2014J serendipitously obtained with the Kilodegree Extremely Little Telescope (KELT). The SN was observed at high cadence for over 100 days, from pre-explosion, to early rise and peak times, through the secondary bump. The high cadence KELT data with high S/N is completely unique for SN 2014J and for any other SNIa, with the exception of the (yet) unpublished Kepler data. Here, we report determinations of the SN explosion time and peak time. We also report measures of the "smoothness" of the light curve on timescales of minutes/hours never before probed, and we use this to place limits on energy produced from short-lived isotopes or inhomogeneities in the explosion or the circumstellar medium. From the non-observation of significant perturbations of the light curves, we derive a 3sigma upper-limit corresponding to 8.7 x 10^36 erg/s for any such extra sources of luminosity at optical wavelengths.

arXiv commentAccepted by ApJ Letters. Companion paper by Goobar et al is arxiv:1410.1363

References in corpus (18)

• Correcting for the Effects of Interstellar Extinction
• A method for optimal image subtraction
• The Fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)
• Astrometry.net: Blind astrometric calibration of arbitrary astronomical images
• The ACS Nearby Galaxy Survey Treasury
• Supernova 2011fe from an Exploding Carbon-Oxygen White Dwarf Star
• Seeing the Collision of a Supernova with its Companion Star
• The Kilodegree Extremely Little Telescope (KELT): A Small Robotic Telescope for Large-Area Synoptic Surveys
• K-corrections and spectral templates of Type Ia supernovae
• A Compact Degenerate Primary-Star Progenitor of SN 2011fe
• KELT-1b: A Strongly Irradiated, Highly Inflated, Short Period, 27 Jupiter-mass Companion Transiting a mid-F Star
• Extensive HST Ultraviolet Spectra and Multi-wavelength Observations of SN 2014J in M82 Indicate Reddening and Circumstellar Scattering by Typical Dust
• The rise of SN2014J in the nearby galaxy M82
• BVRI lightcurves of supernovae SN 2011fe in M101, SN 2012aw in M95, and SN 2012cg in NGC 4424
• The peculiar extinction law of SN2014J measured with The Hubble Space Telescope
• Constraints on the Progenitor System of the Type Ia Supernova 2014J from Pre-Explosion Hubble Space Telescope Imaging
• Estimating the First-Light Time of the Type Ia Supernova 2014J in M82
• Constraints on the origin of the first light from SN2014J

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• Strong Evidence Against A Non-Degenerate Companion in SN 2012cg
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• ASASSN-18tb: A Most Unusual Type Ia Supernova Observed by TESS and SALT
• Early Time Light Curves of Type Ia Supernovae Observed with TESS
• No Stripped Companion Material in the Nebular Spectrum of the "Two-Component" Type Ia Supernova ASASSN-18bt
• The Deepest Radio Observations of Nearby Type IA Supernovae: Constraining Progenitor Types and Optimizing Future Surveys
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• The first 48: Discovery and progenitor constraints on the Type Ia supernova 2013gy
• From Out of the Blue: Swift Links 2002es-like, 2003fg-like, and Early-Time Bump Type Ia Supernovae
• Observations of Type Ia Supernova 2014J for Nearly 900 Days and Constraints on Its Progenitor System
• SN 2014J at M82: I. A middle-class type Ia supernova by all spectroscopic metrics
• Evidence for Rapid Variability in the Optical Light Curve of the Type Ia SN 2014J
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• Synergies between Exoplanet Surveys and Variable Star Research