OBSERVATIONS OF THE TYPE IIN SUPERNOVA J13522411
Publisher
The University of Arizona.Rights
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.Abstract
We present visible and near-IR photometry and spectra of the type IIn supernova PSN J13522411. The light curve indicates a peak < 50 days after discovery around M = 17, followed by a slow decline. Spectra show strong hydrogen and helium emission that peaks 200 d after discovery, with a P-Cygni pro le that becomes more absorptive as time progresses. We determine that the CSM is in the form of a slow, dense stellar wind that has remained steady for 30 years. The low velocity of the wind, 70 km/s, implies that the progenitor was probably a red or yellow supergiant. From the light curve, we estimate the total radiated energy to be 1050 erg. Further details of the explosion will be determined as time allows.Type
textElectronic Thesis
Degree Name
B.S.Degree Level
BachelorsDegree Program
Honors CollegePhysics