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

A. Fiore; S. Benetti; M. Nicholl; A. Reguitti; E. Cappellaro; S. Campana; S. Bose; E. Paraskeva; E. Berger; T. M. Bravo; J. Burke; Y. Z. Cai; T. W. Chen; P. Chen; R. Ciolfi; S. Dong; S. Gomez; M. Gromadzki; C. P. Gutiérrez; D. Hiramatsu; G. Hosseinzadeh; D. A. Howell; A. Jerkstrand; E. Kankare; A. Kozyreva; K. Maguire; C. McCully; P. Ochner; C. Pellegrino; G. Pignata; R. S. Post; N. Elias-Rosa; M. Shahbandeh; S. Schuldt; B. P. Thomas; L. Tomasella; J. Vinkó; C. Vogl; J. C. Wheeler; D. R. Young

doi:10.1093/mnras/stac744

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

A. Fiore, S. Benetti, M. Nicholl, A. Reguitti, E. Cappellaro, S. Campana, S. Bose, E. Paraskeva, E. Berger, T. M. Bravo, J. Burke, Y. Z. Cai, T. W. Chen, P. Chen, R. Ciolfi, S. Dong, S. Gomez, M. Gromadzki, C. P. Gutiérrez, D. HiramatsuG. Hosseinzadeh, D. A. Howell, A. Jerkstrand, E. Kankare, A. Kozyreva, K. Maguire, C. McCully, P. Ochner, C. Pellegrino, G. Pignata, R. S. Post, N. Elias-Rosa, M. Shahbandeh, S. Schuldt, B. P. Thomas, L. Tomasella, J. Vinkó, C. Vogl, J. C. Wheeler, D. R. Young

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研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

6 引文斯高帕斯（Scopus）

摘要

SN 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⊙ of circumstellar material or a magnetar with a magnetic field of Bp∼1.3 × 1013 G, and initial period of Pspin∼1.8 ms. From the nebular spectrum modelling we infer that SN 2018hti likely results from the explosion of a ∼40M⊙ progenitor star.

原文	???core.languages.en_GB???
頁（從 - 到）	4484-4502
頁數	19
期刊	Monthly Notices of the Royal Astronomical Society
卷	512
發行號	3
DOIs	https://doi.org/10.1093/mnras/stac744
出版狀態	已出版 - 1 5月 2022

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10.1093/mnras/stac744

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Fiore, A., Benetti, S., Nicholl, M., Reguitti, A., Cappellaro, E., Campana, S., Bose, S., Paraskeva, E., Berger, E., Bravo, T. M., Burke, J., Cai, Y. Z., Chen, T. W., Chen, P., Ciolfi, R., Dong, S., Gomez, S., Gromadzki, M., Gutiérrez, C. P., ... Young, D. R. (2022). Close, bright, and boxy: the superluminous SN 2018hti. Monthly Notices of the Royal Astronomical Society, 512(3), 4484-4502. https://doi.org/10.1093/mnras/stac744

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title = "Close, bright, and boxy: the superluminous SN 2018hti",

abstract = "SN 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⊙ of circumstellar material or a magnetar with a magnetic field of Bp∼1.3 × 1013 G, and initial period of Pspin∼1.8 ms. From the nebular spectrum modelling we infer that SN 2018hti likely results from the explosion of a ∼40M⊙ progenitor star.",

keywords = "supernovae: general, supernovae: individual: SN 2018hti",

author = "A. Fiore and S. Benetti and M. Nicholl and A. Reguitti and E. Cappellaro and S. Campana and S. Bose and E. Paraskeva and E. Berger and Bravo, {T. M.} and J. Burke and Cai, {Y. Z.} and Chen, {T. W.} and P. Chen and R. Ciolfi and S. Dong and S. Gomez and M. Gromadzki and Guti{\'e}rrez, {C. P.} and D. Hiramatsu and G. Hosseinzadeh and Howell, {D. A.} and A. Jerkstrand and E. Kankare and A. Kozyreva and K. Maguire and C. McCully and P. Ochner and C. Pellegrino and G. Pignata and Post, {R. S.} and N. Elias-Rosa and M. Shahbandeh and S. Schuldt and Thomas, {B. P.} and L. Tomasella and J. Vink{\'o} and C. Vogl and Wheeler, {J. C.} and Young, {D. R.}",

note = "Publisher Copyright: {\textcopyright} 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.",

year = "2022",

month = may,

day = "1",

doi = "10.1093/mnras/stac744",

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volume = "512",

pages = "4484--4502",

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Fiore, A, Benetti, S, Nicholl, M, Reguitti, A, Cappellaro, E, Campana, S, Bose, S, Paraskeva, E, Berger, E, Bravo, TM, Burke, J, Cai, YZ, Chen, TW, Chen, P, Ciolfi, R, Dong, S, Gomez, S, Gromadzki, M, Gutiérrez, CP, Hiramatsu, D, Hosseinzadeh, G, Howell, DA, Jerkstrand, A, Kankare, E, Kozyreva, A, Maguire, K, McCully, C, Ochner, P, Pellegrino, C, Pignata, G, Post, RS, Elias-Rosa, N, Shahbandeh, M, Schuldt, S, Thomas, BP, Tomasella, L, Vinkó, J, Vogl, C, Wheeler, JC & Young, DR 2022, 'Close, bright, and boxy: the superluminous SN 2018hti', Monthly Notices of the Royal Astronomical Society, 卷 512, 編號 3, 頁 4484-4502. https://doi.org/10.1093/mnras/stac744

TY - JOUR

T1 - Close, bright, and boxy

T2 - the superluminous SN 2018hti

AU - Fiore, A.

AU - Benetti, S.

AU - Nicholl, M.

AU - Reguitti, A.

AU - Cappellaro, E.

AU - Campana, S.

AU - Bose, S.

AU - Paraskeva, E.

AU - Berger, E.

AU - Bravo, T. M.

AU - Burke, J.

AU - Cai, Y. Z.

AU - Chen, T. W.

AU - Chen, P.

AU - Ciolfi, R.

AU - Dong, S.

AU - Gomez, S.

AU - Gromadzki, M.

AU - Gutiérrez, C. P.

AU - Hiramatsu, D.

AU - Hosseinzadeh, G.

AU - Howell, D. A.

AU - Jerkstrand, A.

AU - Kankare, E.

AU - Kozyreva, A.

AU - Maguire, K.

AU - McCully, C.

AU - Ochner, P.

AU - Pellegrino, C.

AU - Pignata, G.

AU - Post, R. S.

AU - Elias-Rosa, N.

AU - Shahbandeh, M.

AU - Schuldt, S.

AU - Thomas, B. P.

AU - Tomasella, L.

AU - Vinkó, J.

AU - Vogl, C.

AU - Wheeler, J. C.

AU - Young, D. R.

PY - 2022/5/1

Y1 - 2022/5/1

N2 - SN 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⊙ of circumstellar material or a magnetar with a magnetic field of Bp∼1.3 × 1013 G, and initial period of Pspin∼1.8 ms. From the nebular spectrum modelling we infer that SN 2018hti likely results from the explosion of a ∼40M⊙ progenitor star.

AB - SN 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⊙ of circumstellar material or a magnetar with a magnetic field of Bp∼1.3 × 1013 G, and initial period of Pspin∼1.8 ms. From the nebular spectrum modelling we infer that SN 2018hti likely results from the explosion of a ∼40M⊙ progenitor star.

KW - supernovae: general

KW - supernovae: individual: SN 2018hti

UR - http://www.scopus.com/inward/record.url?scp=85132493038&partnerID=8YFLogxK

U2 - 10.1093/mnras/stac744

DO - 10.1093/mnras/stac744

M3 - 期刊論文

AN - SCOPUS:85132493038

SN - 0035-8711

VL - 512

SP - 4484

EP - 4502

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 3

ER -

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

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