SN 2018zd: an unusual stellar explosion as part of the diverse Type II Supernova landscape

• Published in: Monthly notices of the Royal Astronomical Society Vol. 498; no. 1; pp. 84 - 100
• Main Authors: Zhang, Jujia, Wang, Xiaofeng, József, Vinkó, Zhai, Qian, Zhang, Tianmeng, Filippenko, Alexei V, Brink, Thomas G, Zheng, WeiKang, Wyrzykowski, Łukasz, Mikołajczyk, Przemysław, Huang, Fang, Rui, Liming, Mo, Jun, Sai, Hanna, Zhang, Xinhan, Wang, Huijuan, DerKacy, James M, Baron, Eddie, Sárneczky, K, Bódi, A, Csörnyei, G, Hanyecz, O, Ignácz, B, Kalup, Cs, Kriskovics, L, Könyves-Tóth, R, Ordasi, A, Pál, A, Sódor, Á, Szakáts, R, Vida, K, Zsidi, G
• Format: Journal Article
• Language: English
• Published: Oxford University Press 01.10.2020
• Subjects: supernovae: individual: (SN 2018zd); supernovae: general

ABSTRACT We present extensive observations of SN 2018zd covering the first ∼450 d after the explosion. This SN shows a possible shock-breakout signal ∼3.6 h after the explosion in the unfiltered light curve, and prominent flash-ionization spectral features within the first week. The unusual photosph...