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

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 th...

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Veröffentlicht in:	The Astrophysical journal 2023-03, Vol.945 (2), p.107
Hauptverfasser:	Pearson, Jeniveve, Hosseinzadeh, Griffin, Sand, David J., Andrews, Jennifer E., Jencson, Jacob E., Dong, Yize, Bostroem, K. Azalee, Valenti, S., Janzen, Daryl, Retamal, Nicolás Meza, Lundquist, M. J., Wyatt, Samuel, Amaro, R. C., Burke, Jamison, Howell, D. Andrew, McCully, Curtis, Hiramatsu, Daichi, Jha, Saurabh W., Smith, Nathan, Haislip, Joshua, Kouprianov, Vladimir, Reichart, Daniel E., Yang, Yi, Rho, Jeonghee
Format:	Artikel
Sprache:	eng
Schlagworte:	Astrophysics Circumstellar matter Core-collapse supernovae Ejecta Emission spectra Extrasolar planets Light curve Luminosity Planet detection Red giant stars Satellite observation Supergiant stars Supernova Supernovae Transit Type II supernovae
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Zusammenfassung:	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 (
ISSN:	0004-637X 1538-4357
DOI:	10.3847/1538-4357/acb8a9