Artykuł w czasopiśmie
Brak miniatury
Licencja
 

Close, bright, and boxy: the superluminous SN 2018hti

Uproszczony widok
dc.abstract.enSN 2018hti was a very nearby (z = 0.0614) superluminous supernova with an exceedingly bright absolute magnitude of -21.7 mag in r band at maximum. The densely sampled pre-maximum light curves of SN 2018hti show a slow luminosity evolution and constrain the rise time to ~50 rest-frame d. We fitted synthetic light curves to the photometry to infer the physical parameters of the explosion of SN 2018hti for both the magnetar and the CSM-interaction scenarios. We conclude that one of two mechanisms could be powering the luminosity of SN 2018hti; interaction with ~10 M<SUB>⊙</SUB> of circumstellar material or a magnetar with a magnetic field of B<SUB>p</SUB>~ 1.3 × 10<SUP>13</SUP> G, and initial period of P<SUB>spin</SUB>~ 1.8 ms. From the nebular spectrum modelling we infer that SN 2018hti likely results from the explosion of a ${sim}40, mathrm{M}_odot$ progenitor star.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorKankare, E.
dc.contributor.authorYoung, D. R.
dc.contributor.authorElias-Rosa, N.
dc.contributor.authorFiore, A.
dc.contributor.authorMaguire, K.
dc.contributor.authorThomas, B. P.
dc.contributor.authorBerger, E.
dc.contributor.authorBurke, J.
dc.contributor.authorCai, Y. -Z.
dc.contributor.authorMcCully, C.
dc.contributor.authorBravo, T. M.
dc.contributor.authorChen, P.
dc.contributor.authorNicholl, M.
dc.contributor.authorHiramatsu, D.
dc.contributor.authorPost, R. S.
dc.contributor.authorCappellaro, E.
dc.contributor.authorCiolfi, R.
dc.contributor.authorVogl, C.
dc.contributor.authorDong, S.
dc.contributor.authorPignata, G.
dc.contributor.authorShahbandeh, M.
dc.contributor.authorWheeler, J. C.
dc.contributor.authorCampana, S.
dc.contributor.authorOchner, P.
dc.contributor.authorBenetti, S.
dc.contributor.authorPellegrino, C.
dc.contributor.authorGromadzki, Mariusz
dc.contributor.authorJerkstrand, A.
dc.contributor.authorParaskeva, E.
dc.contributor.authorGutiérrez, C. P.
dc.contributor.authorBose, S.
dc.contributor.authorSchuldt, S.
dc.contributor.authorReguitti, A.
dc.contributor.authorHowell, D. A.
dc.contributor.authorVinkó, J.
dc.contributor.authorKozyreva, A.
dc.contributor.authorHosseinzadeh, G.
dc.contributor.authorTomasella, L.
dc.contributor.authorChen, T. -W.
dc.contributor.authorGomez, S.
dc.date.accessioned2024-01-24T19:26:06Z
dc.date.available2024-01-24T19:26:06Z
dc.date.copyright2021-11-13
dc.date.issued2022
dc.description.accesstimeBEFORE_PUBLICATION
dc.description.financePublikacja bezkosztowa
dc.description.number3
dc.description.versionORIGINAL_AUTHOR
dc.description.volume512
dc.identifier.doi10.1093/MNRAS/STAC744
dc.identifier.issn0035-8711
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/103158
dc.identifier.weblinkhttp://adsabs.harvard.edu/abs/2022MNRAS.512.4484F
dc.languageeng
dc.pbn.affiliationastronomy
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.relation.pages4484-4502
dc.rightsOther
dc.sciencecloudnosend
dc.titleClose, bright, and boxy: the superluminous SN 2018hti
dc.typeJournalArticle
dspace.entity.typePublication