TY - JOUR
T1 - Circumstellar Medium Interaction in SN 2018lab, A Low-luminosity Type IIP Supernova Observed with TESS
AU - Pearson, Jeniveve
AU - Hosseinzadeh, Griffin
AU - Sand, David J.
AU - Andrews, Jennifer E.
AU - Jencson, Jacob E.
AU - Dong, Yize
AU - Bostroem, K. Azalee
AU - Valenti, S.
AU - Janzen, Daryl
AU - Retamal, Nicolás Meza
AU - Lundquist, M. J.
AU - Wyatt, Samuel
AU - Amaro, R. C.
AU - Burke, Jamison
AU - Howell, D. Andrew
AU - McCully, Curtis
AU - Hiramatsu, Daichi
AU - Jha, Saurabh W.
AU - Smith, Nathan
AU - Haislip, Joshua
AU - Kouprianov, Vladimir
AU - Reichart, Daniel E.
AU - Yang, Yi
AU - Rho, Jeonghee
N1 - Funding Information:
We thank Luc Dessart for providing his model spectra. Time domain research by the University of Arizona team and D.J.S. is supported by NASA grant 80NSSC22K0167, NSF grants AST-1821987, 1813466, 1908972, & 2108032, and by the Heising-Simons Foundation under grant #2020-1864. J.E.A. is supported by the international Gemini Observatory, a program of NSF’s NOIRLab, which is managed by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation, on behalf of the Gemini partnership of Argentina, Brazil, Canada, Chile, the Republic of Korea, and the United States of America. Research by Y.D., N.M., and S.V. is supported by NSF grants AST-1813176 and AST-2008108. K.A.B. acknowledges support from the DIRAC Institute in the Department of Astronomy at the University of Washington. The DIRAC Institute is supported through generous gifts from the Charles and Lisa Simonyi Fund for Arts and Sciences, and the Washington Research Foundation. The SALT data reported here were taken as part of Rutgers University program 2018-1-MLT-006 (PI: S. W. Jha). This research has made use of the NASA/IPAC Extragalactic Database (NED), which is funded by the National Aeronautics and Space Administration and operated by the California Institute of Technology. This research has also made use of the Spanish Virtual Observatory https://svo.cab.inta-csic.es ) project funded by MCIN/AEI/10.13039/501100011033/ through grant PID2020112949GBI00 and the Weizmann Interactive Supernova Data Repository (WISeREP; https://wiserep.weizmann.ac.il ; Yaron & Gal-Yam ). This paper made use of the modsCCDRed data reduction code developed in part with funds provided by NSF Grants AST-9987045 and AST-1108693. Based in part on data acquired at the Siding Spring Observatory 2.3 m, we acknowledge the traditional owners of the land on which the SSO stands, the Gamilaraay people, and pay our respects to elders past and present.
Funding Information:
We thank Luc Dessart for providing his model spectra. Time domain research by the University of Arizona team and D.J.S. is supported by NASA grant 80NSSC22K0167, NSF grants AST-1821987, 1813466, 1908972, & 2108032, and by the Heising-Simons Foundation under grant #2020-1864. J.E.A. is supported by the international Gemini Observatory, a program of NSF’s NOIRLab, which is managed by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation, on behalf of the Gemini partnership of Argentina, Brazil, Canada, Chile, the Republic of Korea, and the United States of America. Research by Y.D., N.M., and S.V. is supported by NSF grants AST-1813176 and AST-2008108. K.A.B. acknowledges support from the DIRAC Institute in the Department of Astronomy at the University of Washington. The DIRAC Institute is supported through generous gifts from the Charles and Lisa Simonyi Fund for Arts and Sciences, and the Washington Research Foundation. The SALT data reported here were taken as part of Rutgers University program 2018-1-MLT-006 (PI: S. W. Jha). This research has made use of the NASA/IPAC Extragalactic Database (NED), which is funded by the National Aeronautics and Space Administration and operated by the California Institute of Technology. This research has also made use of the Spanish Virtual Observatory https://svo.cab.inta-csic.es) project funded by MCIN/AEI/10.13039/501100011033/ through grant PID2020112949GBI00 and the Weizmann Interactive Supernova Data Repository (WISeREP; https://wiserep.weizmann.ac.il; Yaron & Gal-Yam 2012). This paper made use of the modsCCDRed data reduction code developed in part with funds provided by NSF Grants AST-9987045 and AST-1108693. Based in part on data acquired at the Siding Spring Observatory 2.3 m, we acknowledge the traditional owners of the land on which the SSO stands, the Gamilaraay people, and pay our respects to elders past and present.
Publisher Copyright:
© 2023. The Author(s). Published by the American Astronomical Society.
PY - 2023/3/1
Y1 - 2023/3/1
N2 - 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 (<2 days) of SN 2018lab provides further evidence for ejecta-CSM interaction. The early emission features in the spectra of SN 2018lab are well described by models of a red supergiant progenitor with an extended envelope and a close-in CSM. As one of the few LLSNe with observed flash features, SN 2018lab highlights the need for more early spectra to explain the diversity of the flash feature morphology of Type II SNe.
AB - 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 (<2 days) of SN 2018lab provides further evidence for ejecta-CSM interaction. The early emission features in the spectra of SN 2018lab are well described by models of a red supergiant progenitor with an extended envelope and a close-in CSM. As one of the few LLSNe with observed flash features, SN 2018lab highlights the need for more early spectra to explain the diversity of the flash feature morphology of Type II SNe.
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U2 - 10.3847/1538-4357/acb8a9
DO - 10.3847/1538-4357/acb8a9
M3 - Article
AN - SCOPUS:85150458952
SN - 0004-637X
VL - 945
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2
M1 - 107
ER -