SN 2008gz - most likely a normal type IIP event
Rupak Roy, Brijesh Kumar, Alexander S. Moskvitin, Stefano Benetti,, Timur A. Fatkhullin, Brajesh Kumar, Kuntal Misra, Filomena Bufano, Ralph, Martin, Vladimir V. Sokolov, S. B. Pandey, H. C. Chandola, Ram Sagar

TL;DR
SN 2008gz is a typical type IIP supernova with unique features like a significant V magnitude drop, providing insights into explosion energy and progenitor mass through detailed photometric and spectroscopic analysis.
Contribution
This study presents detailed photometric and spectroscopic observations of SN 2008gz, revealing its unique light curve features and estimating explosion parameters and progenitor mass.
Findings
SN 2008gz exhibits a rare 1.5 mag drop during plateau to nebular transition.
Estimated synthesized $^{56}$Ni mass is 0.05 M☉.
Explosion energy is between 2-3 x 10^{51} erg, with a progenitor mass up to 17 M☉.
Abstract
We present BV RI photometric and low-resolution spectroscopic investigation of a type II core-collapse supernova (SN) 2008gz, which occurred in a star forming arm and within a half-light radius (solar metallicity region) of a nearby spiral galaxy NGC 3672. The SN event was detected late and a detailed investigation of its light curves and spectra spanning 200 days suggest that it is an event of type IIP similar to archetypal SNe 2004et and 1999em. However, in contrast to other events of its class, the SN 2008gz exhibits rarely observed V magnitude drop of 1.5 over the period of a month during plateau to nebular phase. Using 0.21 mag of Av as a lower limit and a distance of 25.5 Mpc, we estimate synthesized Ni mass of 0.05 \pm 0.01 M* and a mid-plateau Mv of -16.6 \pm 0.2 mag. The photospheric velocity is observed to be higher than that was observed for SN 2004et at similar…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
