A long life of excess: The interacting transient SN 2017hcc

S. Moran; M. Fraser; R. Kotak; A. Pastorello; S. Benetti; S. J. Brennan; C. P. Gutiérrez; E. Kankare; H. Kuncarayakti; S. Mattila; T. M. Reynolds; J. P. Anderson; P. J. Brown; S. Campana; K. C. Chambers; T. W. Chen; M. Della Valle; M. Dennefeld; N. Elias-Rosa; L. Galbany; F. J. Galindo-Guil; M. Gromadzki; D. Hiramatsu; C. Inserra; G. Leloudas; T. E. Müller-Bravo; M. Nicholl; A. Reguitti; M. Shahbandeh; S. J. Smartt; L. Tartaglia; D. R. Young

doi:10.1051/0004-6361/202244565

A long life of excess: The interacting transient SN 2017hcc

S. Moran, M. Fraser, R. Kotak, A. Pastorello, S. Benetti, S. J. Brennan, C. P. Gutiérrez, E. Kankare, H. Kuncarayakti, S. Mattila, T. M. Reynolds, J. P. Anderson, P. J. Brown, S. Campana, K. C. Chambers, T. W. Chen, M. Della Valle, M. Dennefeld, N. Elias-Rosa, L. GalbanyF. J. Galindo-Guil, M. Gromadzki, D. Hiramatsu, C. Inserra, G. Leloudas, T. E. Müller-Bravo, M. Nicholl, A. Reguitti, M. Shahbandeh, S. J. Smartt, L. Tartaglia, D. R. Young

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摘要

In this study we present the results of a five-year follow-up campaign of the long-lived type IIn supernova SN 2017hcc, found in a spiral dwarf host of near-solar metallicity. The long rise time (57 ± 2 days, ATLAS o band) and high luminosity (peaking at -20.78 ± 0.01 mag in the ATLAS o band) point towards an interaction of massive ejecta with massive and dense circumstellar material (CSM). The evolution of SN 2017hcc is slow, both spectroscopically and photometrically, reminiscent of the long-lived type IIn, SN 2010jl. An infrared (IR) excess was apparent soon after the peak, and blueshifts were noticeable in the Balmer lines starting from a few hundred days, but appeared to be fading by around +1200 d. We posit that an IR light echo from pre-existing dust dominates at early times, with some possible condensation of new dust grains occurring at epochs ≳;+800 d.

原文	???core.languages.en_GB???
文章編號	A51
期刊	Astronomy and Astrophysics
卷	669
DOIs	https://doi.org/10.1051/0004-6361/202244565
出版狀態	已出版 - 1 1月 2023

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10.1051/0004-6361/202244565

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Moran, S., Fraser, M., Kotak, R., Pastorello, A., Benetti, S., Brennan, S. J., Gutiérrez, C. P., Kankare, E., Kuncarayakti, H., Mattila, S., Reynolds, T. M., Anderson, J. P., Brown, P. J., Campana, S., Chambers, K. C., Chen, T. W., Della Valle, M., Dennefeld, M., Elias-Rosa, N., ... Young, D. R. (2023). A long life of excess: The interacting transient SN 2017hcc. Astronomy and Astrophysics, 669, 文章 A51. https://doi.org/10.1051/0004-6361/202244565

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title = "A long life of excess: The interacting transient SN 2017hcc",

abstract = "In this study we present the results of a five-year follow-up campaign of the long-lived type IIn supernova SN 2017hcc, found in a spiral dwarf host of near-solar metallicity. The long rise time (57 ± 2 days, ATLAS o band) and high luminosity (peaking at -20.78 ± 0.01 mag in the ATLAS o band) point towards an interaction of massive ejecta with massive and dense circumstellar material (CSM). The evolution of SN 2017hcc is slow, both spectroscopically and photometrically, reminiscent of the long-lived type IIn, SN 2010jl. An infrared (IR) excess was apparent soon after the peak, and blueshifts were noticeable in the Balmer lines starting from a few hundred days, but appeared to be fading by around +1200 d. We posit that an IR light echo from pre-existing dust dominates at early times, with some possible condensation of new dust grains occurring at epochs ≳;+800 d.",

keywords = "Supernovae: general, Supernovae: individual: ATLAS17lsn, Supernovae: individual: PS17fra, Supernovae: individual: SN 2017hcc",

author = "S. Moran and M. Fraser and R. Kotak and A. Pastorello and S. Benetti and Brennan, {S. J.} and Guti{\'e}rrez, {C. P.} and E. Kankare and H. Kuncarayakti and S. Mattila and Reynolds, {T. M.} and Anderson, {J. P.} and Brown, {P. J.} and S. Campana and Chambers, {K. C.} and Chen, {T. W.} and {Della Valle}, M. and M. Dennefeld and N. Elias-Rosa and L. Galbany and Galindo-Guil, {F. J.} and M. Gromadzki and D. Hiramatsu and C. Inserra and G. Leloudas and M{\"u}ller-Bravo, {T. E.} and M. Nicholl and A. Reguitti and M. Shahbandeh and Smartt, {S. J.} and L. Tartaglia and Young, {D. R.}",

note = "Publisher Copyright: {\textcopyright} The Authors 2023.",

year = "2023",

month = jan,

day = "1",

doi = "10.1051/0004-6361/202244565",

language = "???core.languages.en_GB???",

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Moran, S, Fraser, M, Kotak, R, Pastorello, A, Benetti, S, Brennan, SJ, Gutiérrez, CP, Kankare, E, Kuncarayakti, H, Mattila, S, Reynolds, TM, Anderson, JP, Brown, PJ, Campana, S, Chambers, KC, Chen, TW, Della Valle, M, Dennefeld, M, Elias-Rosa, N, Galbany, L, Galindo-Guil, FJ, Gromadzki, M, Hiramatsu, D, Inserra, C, Leloudas, G, Müller-Bravo, TE, Nicholl, M, Reguitti, A, Shahbandeh, M, Smartt, SJ, Tartaglia, L & Young, DR 2023, 'A long life of excess: The interacting transient SN 2017hcc', Astronomy and Astrophysics, 卷 669, A51. https://doi.org/10.1051/0004-6361/202244565

TY - JOUR

T1 - A long life of excess

T2 - The interacting transient SN 2017hcc

AU - Moran, S.

AU - Fraser, M.

AU - Kotak, R.

AU - Pastorello, A.

AU - Benetti, S.

AU - Brennan, S. J.

AU - Gutiérrez, C. P.

AU - Kankare, E.

AU - Kuncarayakti, H.

AU - Mattila, S.

AU - Reynolds, T. M.

AU - Anderson, J. P.

AU - Brown, P. J.

AU - Campana, S.

AU - Chambers, K. C.

AU - Chen, T. W.

AU - Della Valle, M.

AU - Dennefeld, M.

AU - Elias-Rosa, N.

AU - Galbany, L.

AU - Galindo-Guil, F. J.

AU - Gromadzki, M.

AU - Hiramatsu, D.

AU - Inserra, C.

AU - Leloudas, G.

AU - Müller-Bravo, T. E.

AU - Nicholl, M.

AU - Reguitti, A.

AU - Shahbandeh, M.

AU - Smartt, S. J.

AU - Tartaglia, L.

AU - Young, D. R.

PY - 2023/1/1

Y1 - 2023/1/1

N2 - In this study we present the results of a five-year follow-up campaign of the long-lived type IIn supernova SN 2017hcc, found in a spiral dwarf host of near-solar metallicity. The long rise time (57 ± 2 days, ATLAS o band) and high luminosity (peaking at -20.78 ± 0.01 mag in the ATLAS o band) point towards an interaction of massive ejecta with massive and dense circumstellar material (CSM). The evolution of SN 2017hcc is slow, both spectroscopically and photometrically, reminiscent of the long-lived type IIn, SN 2010jl. An infrared (IR) excess was apparent soon after the peak, and blueshifts were noticeable in the Balmer lines starting from a few hundred days, but appeared to be fading by around +1200 d. We posit that an IR light echo from pre-existing dust dominates at early times, with some possible condensation of new dust grains occurring at epochs ≳;+800 d.

AB - In this study we present the results of a five-year follow-up campaign of the long-lived type IIn supernova SN 2017hcc, found in a spiral dwarf host of near-solar metallicity. The long rise time (57 ± 2 days, ATLAS o band) and high luminosity (peaking at -20.78 ± 0.01 mag in the ATLAS o band) point towards an interaction of massive ejecta with massive and dense circumstellar material (CSM). The evolution of SN 2017hcc is slow, both spectroscopically and photometrically, reminiscent of the long-lived type IIn, SN 2010jl. An infrared (IR) excess was apparent soon after the peak, and blueshifts were noticeable in the Balmer lines starting from a few hundred days, but appeared to be fading by around +1200 d. We posit that an IR light echo from pre-existing dust dominates at early times, with some possible condensation of new dust grains occurring at epochs ≳;+800 d.

KW - Supernovae: general

KW - Supernovae: individual: ATLAS17lsn

KW - Supernovae: individual: PS17fra

KW - Supernovae: individual: SN 2017hcc

UR - http://www.scopus.com/inward/record.url?scp=85146368666&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/202244565

DO - 10.1051/0004-6361/202244565

M3 - 期刊論文

AN - SCOPUS:85146368666

SN - 0004-6361

VL - 669

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

M1 - A51

ER -

A long life of excess: The interacting transient SN 2017hcc

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