Circumstellar Medium Interaction in SN 2018lab, A Low-luminosity Type IIP Supernova Observed with TESS

Autor: Jeniveve Pearson, Griffin Hosseinzadeh, David J. Sand, Jennifer E. Andrews, Jacob E. Jencson, Yize Dong, K. Azalee Bostroem, S. Valenti, Daryl Janzen, Nicolás Meza Retamal, M. J. Lundquist, Samuel Wyatt, R. C. Amaro, Jamison Burke, D. Andrew Howell, Curtis McCully, Daichi Hiramatsu, Saurabh W. Jha, Nathan Smith, Joshua Haislip, Vladimir Kouprianov, Daniel E. Reichart, Yi Yang, Jeonghee Rho
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: The Astrophysical Journal, Vol 945, Iss 2, p 107 (2023)
Druh dokumentu: article
ISSN: 1538-4357
DOI: 10.3847/1538-4357/acb8a9
Popis: We present photometric and spectroscopic data of SN 2018lab, a low-luminosity Type IIP supernova (LLSN) with a V -band peak luminosity of −15.1 ± 0.1 mag. SN 2018lab was discovered by the Distance Less Than 40 Mpc (DLT40) SN survey only 0.73 days post-explosion, as determined by observations from the Transiting Exoplanet Survey Satellite (TESS). TESS observations of SN 2018lab yield a densely sampled, fast-rising, early-time light curve likely powered by ejecta–circumstellar medium (CSM) interaction. The blueshifted, broadened flash feature in the earliest spectra (
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