Intermediate-luminosity Type IIP SN 2021gmj : a low-energy explosion with signatures of circumstellar material

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorMurai, Yutaen_US
dc.contributor.authorTanaka, Masaomien_US
dc.contributor.authorKawabata, Mihoen_US
dc.contributor.authorTaguchi, Kentaen_US
dc.contributor.authorTeja, Rishabh Singhen_US
dc.contributor.authorNakaoka, Tatsuyaen_US
dc.contributor.authorMaeda, Keiichien_US
dc.contributor.authorKawabata, Koji S.en_US
dc.contributor.authorNagao, Takashien_US
dc.contributor.authorMoriya, Takashi J.en_US
dc.contributor.authorSahu, D. K.en_US
dc.contributor.authorAnupama, G. C.en_US
dc.contributor.authorTominaga, Nozomuen_US
dc.contributor.authorMorokuma, Tomokien_US
dc.contributor.authorImazawa, Ryoen_US
dc.contributor.authorInutsuka, Satokoen_US
dc.contributor.authorIsogai, Keisukeen_US
dc.contributor.authorKasuga, Toshihiroen_US
dc.contributor.authorKobayashi, Naotoen_US
dc.contributor.authorKondo, Soheien_US
dc.contributor.authorMaehara, Hiroyukien_US
dc.contributor.authorMori, Yukien_US
dc.contributor.authorNiino, Yuuen_US
dc.contributor.authorOgawa, Maoen_US
dc.contributor.authorOhsawa, Ryouen_US
dc.contributor.authorOkumura, Shin Ichiroen_US
dc.contributor.authorSaito, Seien_US
dc.contributor.authorSako, Shigeyukien_US
dc.contributor.authorTakahashi, Hidenorien_US
dc.contributor.authorUno, Kohkien_US
dc.contributor.authorYamanaka, Masayukien_US
dc.contributor.departmentDepartment of Electronics and Nanoengineeringen
dc.contributor.departmentMetsähovi Radio Observatoryen
dc.contributor.groupauthorAnne Lähteenmäki Groupen
dc.contributor.organizationTohoku Universityen_US
dc.contributor.organizationUniversity of Hyogoen_US
dc.contributor.organizationKyoto Universityen_US
dc.contributor.organizationIndian Institute of Astrophysicsen_US
dc.contributor.organizationHiroshima Universityen_US
dc.contributor.organizationNational Astronomical Observatory of Japanen_US
dc.contributor.organizationChiba Institute of Technologyen_US
dc.contributor.organizationUniversity of Tokyoen_US
dc.contributor.organizationJapan Spaceguard Associationen_US
dc.contributor.organizationKagoshima Universityen_US
dc.date.accessioned2024-03-06T10:43:45Z
dc.date.available2024-03-06T10:43:45Z
dc.date.issued2024-03-01en_US
dc.descriptionPublisher Copyright: © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.
dc.description.abstractWe present photometric, spectroscopic, and polarimetric observations of the intermediate-luminosity Type IIP supernova (SN) 2021gmj from 1 to 386 d after the explosion. The peak absolute V-band magnitude of SN 2021gmj is −15.5 mag, which is fainter than that of normal Type IIP SNe. The spectral evolution of SN 2021gmj resembles that of other sub-luminous SNe: The optical spectra show narrow P-Cygni profiles, indicating a low expansion velocity. We estimate the progenitor mass to be about 12 M⊙ from the nebular spectrum and the 56Ni mass to be about 0.02 M⊙ from the bolometric light curve. We also derive the explosion energy to be about 3 × 1050 erg by comparing numerical light-curve models with the observed light curves. Polarization in the plateau phase is not very large, suggesting nearly spherical outer envelope. The early photometric observations capture the rapid rise of the light curve, which is likely due to the interaction with a circumstellar material (CSM). The broad emission feature formed by highly ionized lines on top of a blue continuum in the earliest spectrum gives further indication of the CSM at the vicinity of the progenitor. Our work suggests that a relatively low-mass progenitor of an intermediate-luminosity Type IIP SN can also experience an enhanced mass-loss just before the explosion, as suggested for normal Type IIP SNe.en
dc.description.versionPeer revieweden
dc.format.extent19
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationMurai, Y, Tanaka, M, Kawabata, M, Taguchi, K, Teja, R S, Nakaoka, T, Maeda, K, Kawabata, K S, Nagao, T, Moriya, T J, Sahu, D K, Anupama, G C, Tominaga, N, Morokuma, T, Imazawa, R, Inutsuka, S, Isogai, K, Kasuga, T, Kobayashi, N, Kondo, S, Maehara, H, Mori, Y, Niino, Y, Ogawa, M, Ohsawa, R, Okumura, S I, Saito, S, Sako, S, Takahashi, H, Uno, K & Yamanaka, M 2024, ' Intermediate-luminosity Type IIP SN 2021gmj : a low-energy explosion with signatures of circumstellar material ', Monthly Notices of the Royal Astronomical Society, vol. 528, no. 3, pp. 4209-4227 . https://doi.org/10.1093/mnras/stae170en
dc.identifier.doi10.1093/mnras/stae170en_US
dc.identifier.issn0035-8711
dc.identifier.issn1365-2966
dc.identifier.otherPURE UUID: c53debb7-548f-4057-b73e-414650f4bab6en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/c53debb7-548f-4057-b73e-414650f4bab6en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85184839335&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/139882906/Intermediate-luminosity_Type_IIP_SN_2021gmj_-_a_low-energy_explosion_with_signatures_of_circumstellar_material_.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/126960
dc.identifier.urnURN:NBN:fi:aalto-202403062595
dc.language.isoenen
dc.publisherOxford University Press
dc.relation.ispartofseriesMonthly Notices of the Royal Astronomical Society
dc.relation.ispartofseriesVolume 528, issue 3, pp. 4209-4227
dc.rightsopenAccessen
dc.subject.keywordsupernovae: general – supernovae: individual: SN 2021gmjen_US
dc.titleIntermediate-luminosity Type IIP SN 2021gmj : a low-energy explosion with signatures of circumstellar materialen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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