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SN 2020uem: a Possible Thermonuclear Explosion within a Dense Circumstellar Medium. I. The Nature of Type IIn/Ia-CSM SNe from Photometry and Spectroscopy

  • Authors: Kohki Uno, Keiichi Maeda, Takashi Nagao, Tatsuya Nakaoka, Kentaro Motohara, Akito Tajitsu, Masahiro Konishi, Shuhei Koyama, Hidenori Takahashi, Masaomi Tanaka, Hanindyo Kuncarayakti, Miho Kawabata, Masayuki Yamanaka, Kentaro Aoki, Keisuke Isogai, Kenta Taguchi, Mao Ogawa, Koji S. Kawabata, Yuzuru Yoshii, Takashi Miyata, Ryo Imazawa

Kohki Uno et al 2023 The Astrophysical Journal 944 .

  • Provider: AAS Journals

Caption: Figure 9.

Comparison of the line profiles, shown for Brγ (blue), Brδ (orange), Paβ (green), Paδ (red), and Paε (purple). For comparison, we also plot Hα and Hβ obtained at t = +103 days with FOCAS. Each profile is normalized by its peak flux. The vertical dashed line shows the rest wavelength, i.e., v = 0 km s−1, and the horizontal line shows the zero flux level.

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