Four Years of Type Ia Supernovae Observed by TESS: Early-time Light-curve Shapes and Constraints on Companion Interaction Models

M. M. Fausnaugh; P. J. Vallely; M. A. Tucker; C. S. Kochanek; B. J. Shappee; K. Z. Stanek; George R. Ricker; Roland Vanderspek; Manan Agarwal; Tansu Daylan; Rahul Jayaraman; Rebekah Hounsell; Daniel Muthukrishna

doi:10.3847/1538-4357/aceaef

The Astrophysical Journal (Jan 2023)

Four Years of Type Ia Supernovae Observed by TESS: Early-time Light-curve Shapes and Constraints on Companion Interaction Models

M. M. Fausnaugh,
P. J. Vallely,
M. A. Tucker,
C. S. Kochanek,
B. J. Shappee,
K. Z. Stanek,
George R. Ricker,
Roland Vanderspek,
Manan Agarwal,
Tansu Daylan,
Rahul Jayaraman,
Rebekah Hounsell,
Daniel Muthukrishna

Affiliations

M. M. Fausnaugh: ORCiD; Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , Cambridge, MA 02139, USA; Department of Physics & Astronomy, Texas Tech University , Lubbock, TX 79410-1051, USA
P. J. Vallely: Department of Astronomy, The Ohio State University , 140 West 18th Avenue, Columbus, OH 43210, USA
M. A. Tucker: ORCiD; Institute for Astronomy, University of Hawai’i , 2680 Woodlawn Drive, Honolulu, HI 96822, USA
C. S. Kochanek: ORCiD; Department of Astronomy, The Ohio State University , 140 West 18th Avenue, Columbus, OH 43210, USA; Center for Cosmology and AstroParticle Physics, The Ohio State University , 191 W. Woodruff Avenue, Columbus, OH 43210, USA
B. J. Shappee: ORCiD; Institute for Astronomy, University of Hawai’i , 2680 Woodlawn Drive, Honolulu, HI 96822, USA
K. Z. Stanek: Department of Astronomy, The Ohio State University , 140 West 18th Avenue, Columbus, OH 43210, USA; Center for Cosmology and AstroParticle Physics, The Ohio State University , 191 W. Woodruff Avenue, Columbus, OH 43210, USA
George R. Ricker: ORCiD; Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , Cambridge, MA 02139, USA
Roland Vanderspek: ORCiD; Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , Cambridge, MA 02139, USA
Manan Agarwal: Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , Cambridge, MA 02139, USA
Tansu Daylan: ORCiD; Department of Astrophysical Sciences, Princeton University , Princeton, NJ 08544, USA
Rahul Jayaraman: ORCiD; Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , Cambridge, MA 02139, USA
Rebekah Hounsell: ORCiD; University of Maryland , Baltimore County, Baltimore, MD 21250, USA; NASA Goddard Space Flight Center , Greenbelt, MD 20771, USA
Daniel Muthukrishna: ORCiD; Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , Cambridge, MA 02139, USA

DOI: https://doi.org/10.3847/1538-4357/aceaef
Journal volume & issue: Vol. 956, no. 2
p. 108

Abstract

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We present 307 type Ia supernova (SN) light curves from the first 4 yr of the Transiting Exoplanet Survey Satellite mission. We use this sample to characterize the shapes of the early-time light curves, measure the rise times from first light to peak, and search for companion star interactions. Using simulations, we show that light curves must have noise 31 R _⊙ (separations >5.7 × 10 ^12 cm, 99.9% confidence level) and disfavor companions having Roche lobe radii >10 R _⊙ (separations >1.9 × 10 ^12 cm, 95% confidence level). Lastly, we discuss the implications of our results for the intrinsic fraction of single degenerate progenitor systems.

Type Ia supernovae

Published in The Astrophysical Journal

ISSN: 1538-4357 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Science: Astronomy: Astrophysics
Website: https://iopscience.iop.org/journal/0004-637X

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