Strong Near-Infrared Carbon Absorption in the Transitional Type Ia SN 2015bp

• Published in: arXiv.org
• Main Authors: Wyatt, S D, Sand, D J, Hsiao, E Y, Burns, C R, Valenti, S, Bostroem, K A, Lundquist, M, Galbany, L, J Lu, Ashall, C, Diamond, T R, Filippenko, A V, Graham, M L, Hoeflich, P, Kirshner, R P, Krisciunas, K, Marion, G H, Morrell, N I, Persson, S E, Phillips, M M, Stritzinger, M D, Suntzeff, N B, Taddia, F
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 05.04.2021
• Subjects: Absorption; Carbon; Detonation; Displays; Near infrared radiation; Physics - High Energy Astrophysical Phenomena

Unburned carbon is potentially a powerful probe of Type Ia supernova (SN) explosion mechanisms. We present comprehensive optical and near-infrared (NIR) data on the "transitional" Type Ia SN 2015bp. An early NIR spectrum (\(t = -\)9.9 days with respect to B-band maximum) displays a strikin...