NOAO >   Observing Info >   Approved Programs >   2018A-0327

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Program Information for 2018A-0327


PI: Adam Miller, Northwestern U., amiller@northwestern.edu
Address: CIERA Technical Institute, 2145 Sheridan Road, Evanston, IL 60208-0834 USA

CoI: Daniel Perley, Liverpool John Moores University
CoI: Anna Ho, California Institute of Technology
CoI: Shri Kulkarni, California Institute of Technology
CoI: Christoffer Fremling, California Institute of Technology
CoI: Stephen Cenko, U. of Maryland
CoI: Virginia Cunningham, U. of Maryland
CoI: Mansi Kasliwal, California Institute of Technology
CoI: Eric Bellm, U. of Washington
CoI: Suvi Gezari, U. of Maryland

Title: Young Explosions: A ZTF Census of Stars in the Hours to Days After Death

Abstract: We propose a joint LCO-Zwicky Transient Facility (ZTF) ToO program to investigate young, relativistic stellar explosions and supernovae (SNe) on timescales of hours to days. High-cadence ZTF observations over large areas will regularly uncover very young transients. For the most common stellar explosions, supernovae (SNe), LCO will prove critical in solving the long-standing problem of mapping between SN types and progenitor systems. For SNe Ia, early UV/optical light curves are sensitive to radioactive-$^{56}$Ni mixing in the ejecta and thereby shed light on explosion mechanism(s). These observations will help constrain the fraction of SNe Ia that come from single degenerate vs. double degerate binary progenitors. For core collapse SNe, LCO will help map SN types to progenitor properties (radius, mass-loss history), while also probing the unique CSM seen around some massive stars. Finally, there are classes of relativistic explosions predicted to exist but never found: dirty fireballs and orphan afterglows. This LCO-ZTF program has the capability to discover these events for the first time.

Program Type: Standard/Extragalactic

Scheduled Nights:
Run 1 (2018A):  LCO-1m/Sinistro -- 40hrs


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2018A-0327

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