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

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

5 Citas (Scopus)

Resumen

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.

Idioma original	Inglés
Páginas (desde-hasta)	4484-4502
Número de páginas	19
Publicación	Monthly Notices of the Royal Astronomical Society
Volumen	512
N.º	3
DOI	https://doi.org/10.1093/mnras/stac744
Estado	Publicada - 1 may. 2022

Áreas temáticas de ASJC Scopus

Astronomía y astrofísica
Ciencias planetarias y espacial

Acceder al documento

10.1093/mnras/stac744

Otros archivos y enlaces

Enlace a la publicación en Scopus

Citar esto

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

@article{8dc2e2f0911e49bf806db49983b38474,

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",

language = "English",

volume = "512",

pages = "4484--4502",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "3",

}

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, vol. 512, n.º 3, pp. 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 - Article

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

Resumen

Áreas temáticas de ASJC Scopus

Acceder al documento

Otros archivos y enlaces

Huella

Citar esto