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.
Dr Peter Draper firstname.lastname@example.org
Senior Computer Programmer
Dr Nigel Metcalfe email@example.com
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.
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||Jul 1, 2015|
|Publisher||American Astronomical Society|
|Peer Reviewed||Peer Reviewed|
|Keywords||Supernovae: general, Surveys.|
Published Journal Article
© 2015. The American Astronomical Society. All rights reserved.
You might also like
The VST ATLAS quasar survey I: Catalogue of photometrically selected quasar candidates
VST ATLAS galaxy cluster catalogue I: cluster detection and mass calibration
The local hole: a galaxy underdensity covering 90 per cent of sky to ≈200 Mpc
The nature of sub-millimetre galaxies II: an ALMA comparison of SMG dust heating mechanisms