SN 2021gno: a calcium-rich transient with double-peaked light curves

K. Ertini; G. Folatelli; L. Martinez; M. C. Bersten; J. P. Anderson; C. Ashall; E. Baron; S. Bose; P. J. Brown; C. Burns; J. M. Derkacy; L. Ferrari; L. Galbany; E. Hsiao; S. Kumar; J. Lu; P. Mazzali; N. Morrell; M. Orellana; P. J. Pessi; M. M. Phillips; A. L. Piro; A. Polin; M. Shahbandeh; B. J. Shappee; M. Stritzinger; N. B. Suntzeff; M. Tucker; N. Elias-Rosa; H. Kuncarayakti; C. P. Gutiérrez; A. Kozyreva; T. E. Müller-Bravo; T. W. Chen; J. T. Hinkle; A. V. Payne; P. Székely; T. Szalai; B. Barna; R. Könyves-Tóth; D. Bánhidi; I. B. Bíró; I. Csányi; L. Kriskovits; A. Pál; Z. Szabó; R. Szakáts; K. Vida; J. Vinkó; M. Gromadzki; L. Harvey; M. Nicholl; E. Paraskeva; D. R. Young; B. Englert

doi:10.1093/mnras/stad2705

SN 2021gno: a calcium-rich transient with double-peaked light curves

K. Ertini, G. Folatelli, L. Martinez, M. C. Bersten, J. P. Anderson, C. Ashall, E. Baron, S. Bose, P. J. Brown, C. Burns, J. M. Derkacy, L. Ferrari, L. Galbany, E. Hsiao, S. Kumar, J. Lu, P. Mazzali, N. Morrell, M. Orellana, P. J. PessiM. M. Phillips, A. L. Piro, A. Polin, M. Shahbandeh, B. J. Shappee, M. Stritzinger, N. B. Suntzeff, M. Tucker, N. Elias-Rosa, H. Kuncarayakti, C. P. Gutiérrez, A. Kozyreva, T. E. Müller-Bravo, T. W. Chen, J. T. Hinkle, A. V. Payne, P. Székely, T. Szalai, B. Barna, R. Könyves-Tóth, D. Bánhidi, I. B. Bíró, I. Csányi, L. Kriskovits, A. Pál, Z. Szabó, R. Szakáts, K. Vida, J. Vinkó, M. Gromadzki, L. Harvey, M. Nicholl, E. Paraskeva, D. R. Young, B. Englert

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研究成果: 雜誌貢獻 › 期刊論文 › 同行評審

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摘要

We present extensive ultraviolet (UV) and optical photometric and optical spectroscopic follow-up of supernova (SN) 2021gno by the 'Precision Observations of Infant Supernova Explosions' (POISE) project, starting less than 2 d after the explosion. Given its intermediate luminosity, fast photometric evolution, and quick transition to the nebular phase with spectra dominated by [Ca ii] lines, SN 2021gno belongs to the small family of Calcium-rich transients. Moreover, it shows double-peaked light curves, a phenomenon shared with only four other Calcium-rich events. The projected distance from the centre of the host galaxy is not as large as other objects in this family. The initial optical light-curve peaks coincide with a very quick decline of the UV flux, indicating a fast initial cooling phase. Through hydrodynamical modelling of the bolometric light curve and line velocity evolution, we found that the observations are compatible with the explosion of a highly stripped massive star with an ejecta mass of and a 56Ni mass of 0.024 M⊙. The initial cooling phase (first light-curve peak) is explained by the presence of an extended circumstellar material comprising ∼ with an extension of. We discuss if hydrogen features are present in both maximum-light and nebular spectra, and their implications in terms of the proposed progenitor scenarios for Calcium-rich transients.

原文	???core.languages.en_GB???
頁（從 - 到）	279-298
頁數	20
期刊	Monthly Notices of the Royal Astronomical Society
卷	526
發行號	1
DOIs	https://doi.org/10.1093/mnras/stad2705
出版狀態	已出版 - 1 11月 2023

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10.1093/mnras/stad2705

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Ertini, K., Folatelli, G., Martinez, L., Bersten, M. C., Anderson, J. P., Ashall, C., Baron, E., Bose, S., Brown, P. J., Burns, C., Derkacy, J. M., Ferrari, L., Galbany, L., Hsiao, E., Kumar, S., Lu, J., Mazzali, P., Morrell, N., Orellana, M., ... Englert, B. (2023). SN 2021gno: a calcium-rich transient with double-peaked light curves. Monthly Notices of the Royal Astronomical Society, 526(1), 279-298. https://doi.org/10.1093/mnras/stad2705

@article{a069e6e450594d2d94206877d81a551b,

title = "SN 2021gno: a calcium-rich transient with double-peaked light curves",

abstract = "We present extensive ultraviolet (UV) and optical photometric and optical spectroscopic follow-up of supernova (SN) 2021gno by the 'Precision Observations of Infant Supernova Explosions' (POISE) project, starting less than 2 d after the explosion. Given its intermediate luminosity, fast photometric evolution, and quick transition to the nebular phase with spectra dominated by [Ca ii] lines, SN 2021gno belongs to the small family of Calcium-rich transients. Moreover, it shows double-peaked light curves, a phenomenon shared with only four other Calcium-rich events. The projected distance from the centre of the host galaxy is not as large as other objects in this family. The initial optical light-curve peaks coincide with a very quick decline of the UV flux, indicating a fast initial cooling phase. Through hydrodynamical modelling of the bolometric light curve and line velocity evolution, we found that the observations are compatible with the explosion of a highly stripped massive star with an ejecta mass of and a 56Ni mass of 0.024 M⊙. The initial cooling phase (first light-curve peak) is explained by the presence of an extended circumstellar material comprising ∼ with an extension of. We discuss if hydrogen features are present in both maximum-light and nebular spectra, and their implications in terms of the proposed progenitor scenarios for Calcium-rich transients.",

keywords = "stars: massive, supernovae: general, supernovae: individual: SN 2021gno",

author = "K. Ertini and G. Folatelli and L. Martinez and Bersten, {M. C.} and Anderson, {J. P.} and C. Ashall and E. Baron and S. Bose and Brown, {P. J.} and C. Burns and Derkacy, {J. M.} and L. Ferrari and L. Galbany and E. Hsiao and S. Kumar and J. Lu and P. Mazzali and N. Morrell and M. Orellana and Pessi, {P. J.} and Phillips, {M. M.} and Piro, {A. L.} and A. Polin and M. Shahbandeh and Shappee, {B. J.} and M. Stritzinger and Suntzeff, {N. B.} and M. Tucker and N. Elias-Rosa and H. Kuncarayakti and Guti{\'e}rrez, {C. P.} and A. Kozyreva and M{\"u}ller-Bravo, {T. E.} and Chen, {T. W.} and Hinkle, {J. T.} and Payne, {A. V.} and P. Sz{\'e}kely and T. Szalai and B. Barna and R. K{\"o}nyves-T{\'o}th and D. B{\'a}nhidi and B{\'i}r{\'o}, {I. B.} and I. Cs{\'a}nyi and L. Kriskovits and A. P{\'a}l and Z. Szab{\'o} and R. Szak{\'a}ts and K. Vida and J. Vink{\'o} and M. Gromadzki and L. Harvey and M. Nicholl and E. Paraskeva and Young, {D. R.} and B. Englert",

note = "Publisher Copyright: {\textcopyright} 2023 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.",

year = "2023",

month = nov,

day = "1",

doi = "10.1093/mnras/stad2705",

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

volume = "526",

pages = "279--298",

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

issn = "0035-8711",

number = "1",

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Ertini, K, Folatelli, G, Martinez, L, Bersten, MC, Anderson, JP, Ashall, C, Baron, E, Bose, S, Brown, PJ, Burns, C, Derkacy, JM, Ferrari, L, Galbany, L, Hsiao, E, Kumar, S, Lu, J, Mazzali, P, Morrell, N, Orellana, M, Pessi, PJ, Phillips, MM, Piro, AL, Polin, A, Shahbandeh, M, Shappee, BJ, Stritzinger, M, Suntzeff, NB, Tucker, M, Elias-Rosa, N, Kuncarayakti, H, Gutiérrez, CP, Kozyreva, A, Müller-Bravo, TE, Chen, TW, Hinkle, JT, Payne, AV, Székely, P, Szalai, T, Barna, B, Könyves-Tóth, R, Bánhidi, D, Bíró, IB, Csányi, I, Kriskovits, L, Pál, A, Szabó, Z, Szakáts, R, Vida, K, Vinkó, J, Gromadzki, M, Harvey, L, Nicholl, M, Paraskeva, E, Young, DR & Englert, B 2023, 'SN 2021gno: a calcium-rich transient with double-peaked light curves', Monthly Notices of the Royal Astronomical Society, 卷 526, 編號 1, 頁 279-298. https://doi.org/10.1093/mnras/stad2705

TY - JOUR

T1 - SN 2021gno

T2 - a calcium-rich transient with double-peaked light curves

AU - Ertini, K.

AU - Folatelli, G.

AU - Martinez, L.

AU - Bersten, M. C.

AU - Anderson, J. P.

AU - Ashall, C.

AU - Baron, E.

AU - Bose, S.

AU - Brown, P. J.

AU - Burns, C.

AU - Derkacy, J. M.

AU - Ferrari, L.

AU - Galbany, L.

AU - Hsiao, E.

AU - Kumar, S.

AU - Lu, J.

AU - Mazzali, P.

AU - Morrell, N.

AU - Orellana, M.

AU - Pessi, P. J.

AU - Phillips, M. M.

AU - Piro, A. L.

AU - Polin, A.

AU - Shahbandeh, M.

AU - Shappee, B. J.

AU - Stritzinger, M.

AU - Suntzeff, N. B.

AU - Tucker, M.

AU - Elias-Rosa, N.

AU - Kuncarayakti, H.

AU - Gutiérrez, C. P.

AU - Kozyreva, A.

AU - Müller-Bravo, T. E.

AU - Chen, T. W.

AU - Hinkle, J. T.

AU - Payne, A. V.

AU - Székely, P.

AU - Szalai, T.

AU - Barna, B.

AU - Könyves-Tóth, R.

AU - Bánhidi, D.

AU - Bíró, I. B.

AU - Csányi, I.

AU - Kriskovits, L.

AU - Pál, A.

AU - Szabó, Z.

AU - Szakáts, R.

AU - Vida, K.

AU - Vinkó, J.

AU - Gromadzki, M.

AU - Harvey, L.

AU - Nicholl, M.

AU - Paraskeva, E.

AU - Young, D. R.

AU - Englert, B.

PY - 2023/11/1

Y1 - 2023/11/1

N2 - We present extensive ultraviolet (UV) and optical photometric and optical spectroscopic follow-up of supernova (SN) 2021gno by the 'Precision Observations of Infant Supernova Explosions' (POISE) project, starting less than 2 d after the explosion. Given its intermediate luminosity, fast photometric evolution, and quick transition to the nebular phase with spectra dominated by [Ca ii] lines, SN 2021gno belongs to the small family of Calcium-rich transients. Moreover, it shows double-peaked light curves, a phenomenon shared with only four other Calcium-rich events. The projected distance from the centre of the host galaxy is not as large as other objects in this family. The initial optical light-curve peaks coincide with a very quick decline of the UV flux, indicating a fast initial cooling phase. Through hydrodynamical modelling of the bolometric light curve and line velocity evolution, we found that the observations are compatible with the explosion of a highly stripped massive star with an ejecta mass of and a 56Ni mass of 0.024 M⊙. The initial cooling phase (first light-curve peak) is explained by the presence of an extended circumstellar material comprising ∼ with an extension of. We discuss if hydrogen features are present in both maximum-light and nebular spectra, and their implications in terms of the proposed progenitor scenarios for Calcium-rich transients.

AB - We present extensive ultraviolet (UV) and optical photometric and optical spectroscopic follow-up of supernova (SN) 2021gno by the 'Precision Observations of Infant Supernova Explosions' (POISE) project, starting less than 2 d after the explosion. Given its intermediate luminosity, fast photometric evolution, and quick transition to the nebular phase with spectra dominated by [Ca ii] lines, SN 2021gno belongs to the small family of Calcium-rich transients. Moreover, it shows double-peaked light curves, a phenomenon shared with only four other Calcium-rich events. The projected distance from the centre of the host galaxy is not as large as other objects in this family. The initial optical light-curve peaks coincide with a very quick decline of the UV flux, indicating a fast initial cooling phase. Through hydrodynamical modelling of the bolometric light curve and line velocity evolution, we found that the observations are compatible with the explosion of a highly stripped massive star with an ejecta mass of and a 56Ni mass of 0.024 M⊙. The initial cooling phase (first light-curve peak) is explained by the presence of an extended circumstellar material comprising ∼ with an extension of. We discuss if hydrogen features are present in both maximum-light and nebular spectra, and their implications in terms of the proposed progenitor scenarios for Calcium-rich transients.

KW - stars: massive

KW - supernovae: general

KW - supernovae: individual: SN 2021gno

UR - http://www.scopus.com/inward/record.url?scp=85174150626&partnerID=8YFLogxK

U2 - 10.1093/mnras/stad2705

DO - 10.1093/mnras/stad2705

M3 - 期刊論文

AN - SCOPUS:85174150626

SN - 0035-8711

VL - 526

SP - 279

EP - 298

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 1

ER -

SN 2021gno: a calcium-rich transient with double-peaked light curves

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