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Toward Characterization of the Type IIP Supernova Progenitor Population: A Statistical Sample of Light Curves from Pan-STARRS1

Sanders, N.E.; Soderberg, A.M.; Gezari, S.; Betancourt, M.; Chornock, R.; Berger, E.; Foley, R.J.; Challis, P.; Drout, M.; Kirshner, R.P.; Lunnan, R.; Marion, G.H.; Margutti, R.; McKinnon, R.; Milisavljevic, D.; Narayan, G.; Rest, A.; Kankare, E.; Mattila, S.; Smartt, S.J.; Huber, M.E.; Burgett, W.S.; Draper, P.W.; Hodapp, K.W.; Kaiser, N.; Kudritzki, R.P.; Magnier, E.A.; Metcalfe, N.; Morgan, J.S.; Price, P.A.; Tonry, J.L.; Wainscoat, R.J.; Waters, C.

Toward Characterization of the Type IIP Supernova Progenitor Population: A Statistical Sample of Light Curves from Pan-STARRS1 Thumbnail


Authors

N.E. Sanders

A.M. Soderberg

S. Gezari

M. Betancourt

R. Chornock

E. Berger

R.J. Foley

P. Challis

M. Drout

R.P. Kirshner

R. Lunnan

G.H. Marion

R. Margutti

R. McKinnon

D. Milisavljevic

G. Narayan

A. Rest

E. Kankare

S. Mattila

S.J. Smartt

M.E. Huber

W.S. Burgett

K.W. Hodapp

N. Kaiser

R.P. Kudritzki

E.A. Magnier

J.S. Morgan

P.A. Price

J.L. Tonry

R.J. Wainscoat

C. Waters



Abstract

In recent years, wide-field sky surveys providing deep multiband imaging have presented a new path for indirectly characterizing the progenitor populations of core-collapse supernovae (SNe): systematic light-curve studies. We assemble a set of 76 grizy-band Type IIP SN light curves from Pan-STARRS1, obtained over a constant survey program of 4 yr and classified using both spectroscopy and machine-learning-based photometric techniques. We develop and apply a new Bayesian model for the full multiband evolution of each light curve in the sample. We find no evidence of a subpopulation of fast-declining explosions (historically referred to as "Type IIL" SNe). However, we identify a highly significant relation between the plateau phase decay rate and peak luminosity among our SNe IIP. These results argue in favor of a single parameter, likely determined by initial stellar mass, predominantly controlling the explosions of red supergiants. This relation could also be applied for SN cosmology, offering a standardizable candle good to an intrinsic scatter of lsim 0.2 mag. We compare each light curve to physical models from hydrodynamic simulations to estimate progenitor initial masses and other properties of the Pan-STARRS1 Type IIP SN sample. We show that correction of systematic discrepancies between modeled and observed SN IIP light-curve properties and an expanded grid of progenitor properties are needed to enable robust progenitor inferences from multiband light-curve samples of this kind. This work will serve as a pathfinder for photometric studies of core-collapse SNe to be conducted through future wide-field transient searches.

Citation

Sanders, N., Soderberg, A., Gezari, S., Betancourt, M., Chornock, R., Berger, E., …Waters, C. (2015). Toward Characterization of the Type IIP Supernova Progenitor Population: A Statistical Sample of Light Curves from Pan-STARRS1. Astrophysical Journal, 799(2), https://doi.org/10.1088/0004-637x/799/2/208

Journal Article Type Article
Acceptance Date Nov 29, 2014
Publication Date Feb 1, 2015
Deposit Date Jun 16, 2015
Publicly Available Date Mar 28, 2024
Journal Astrophysical Journal
Print ISSN 0004-637X
Electronic ISSN 1538-4357
Publisher American Astronomical Society
Peer Reviewed Peer Reviewed
Volume 799
Issue 2
DOI https://doi.org/10.1088/0004-637x/799/2/208
Keywords Supernovae: general, Surveys.

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Copyright Statement
© 2015. The American Astronomical Society. All rights reserved.





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