SN 2020acat: an energetic fast rising Type IIb supernova

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SN 2020acat : an energetic fast rising Type IIb supernova. / Medler, K.; Mazzali, P. A.; Teffs, J.; Ashall, C.; Anderson, J. P.; Arcavi, Iair; Benetti, S.; Bostroem, K. A.; Burke, J.; Cai, Y-z; Charalampopoulos, P.; Elias-Rosa, N.; Ergon, M.; Galbany, L.; Gromadzki, M.; Hiramatsu, D.; Howell, D. A.; Inserra, C.; Lundqvist, P.; McCully, C.; Muller-Bravo, T.; Newsome, M.; Nicholl, M.; Padilla Gonzalez, E.; Paraskeva, E.; Pastorello, A.; Pellegrino, C.; Pessi, P. J.; Reguitti, A.; Reynolds, T. M.; Roy, R.; Terreran, G.; Tomasella, L.; Young, D. R.

In: Monthly Notices of the Royal Astronomical Society, Vol. 513, No. 4, 27.05.2022, p. 5540-5558.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Medler, K, Mazzali, PA, Teffs, J, Ashall, C, Anderson, JP, Arcavi, I, Benetti, S, Bostroem, KA, Burke, J, Cai, Y, Charalampopoulos, P, Elias-Rosa, N, Ergon, M, Galbany, L, Gromadzki, M, Hiramatsu, D, Howell, DA, Inserra, C, Lundqvist, P, McCully, C, Muller-Bravo, T, Newsome, M, Nicholl, M, Padilla Gonzalez, E, Paraskeva, E, Pastorello, A, Pellegrino, C, Pessi, PJ, Reguitti, A, Reynolds, TM, Roy, R, Terreran, G, Tomasella, L & Young, DR 2022, 'SN 2020acat: an energetic fast rising Type IIb supernova', Monthly Notices of the Royal Astronomical Society, vol. 513, no. 4, pp. 5540-5558. https://doi.org/10.1093/mnras/stac1192

APA

Medler, K., Mazzali, P. A., Teffs, J., Ashall, C., Anderson, J. P., Arcavi, I., Benetti, S., Bostroem, K. A., Burke, J., Cai, Y., Charalampopoulos, P., Elias-Rosa, N., Ergon, M., Galbany, L., Gromadzki, M., Hiramatsu, D., Howell, D. A., Inserra, C., Lundqvist, P., ... Young, D. R. (2022). SN 2020acat: an energetic fast rising Type IIb supernova. Monthly Notices of the Royal Astronomical Society, 513(4), 5540-5558. https://doi.org/10.1093/mnras/stac1192

Vancouver

Medler K, Mazzali PA, Teffs J, Ashall C, Anderson JP, Arcavi I et al. SN 2020acat: an energetic fast rising Type IIb supernova. Monthly Notices of the Royal Astronomical Society. 2022 May 27;513(4):5540-5558. https://doi.org/10.1093/mnras/stac1192

Author

Medler, K. ; Mazzali, P. A. ; Teffs, J. ; Ashall, C. ; Anderson, J. P. ; Arcavi, Iair ; Benetti, S. ; Bostroem, K. A. ; Burke, J. ; Cai, Y-z ; Charalampopoulos, P. ; Elias-Rosa, N. ; Ergon, M. ; Galbany, L. ; Gromadzki, M. ; Hiramatsu, D. ; Howell, D. A. ; Inserra, C. ; Lundqvist, P. ; McCully, C. ; Muller-Bravo, T. ; Newsome, M. ; Nicholl, M. ; Padilla Gonzalez, E. ; Paraskeva, E. ; Pastorello, A. ; Pellegrino, C. ; Pessi, P. J. ; Reguitti, A. ; Reynolds, T. M. ; Roy, R. ; Terreran, G. ; Tomasella, L. ; Young, D. R. / SN 2020acat : an energetic fast rising Type IIb supernova. In: Monthly Notices of the Royal Astronomical Society. 2022 ; Vol. 513, No. 4. pp. 5540-5558.

Bibtex

@article{1e25e526b5f24aa1bc900c80cd14e0f1,
title = "SN 2020acat: an energetic fast rising Type IIb supernova",
abstract = "The ultraviolet (UV) and near-infrared (NIR) photometric and optical spectroscopic observations of SN 2020acat covering similar to 250 d after explosion are presented here. Using the fast rising photometric observations, spanning from the UV to NIR wavelengths, a pseudo-bolometric light curve was constructed and compared to several other well-observed Type lib supernovae (SNe lib). SN 2020acat displayed a very short rise time reaching a peak luminosity of Log(10) (L) = 42.49 +/- 0.17 erg s(-1) in only -14.6 +/- 0.3 d. From modelling of the pseudo-bolometric light curve, we estimated a total mass of Ni-56 synthesized by SN 2020acat of M-Ni = 0.13 +/- 0.03 M-circle dot, with an ejecta mass of M-circle dot = 2.3 +/- 0.4 M-circle dot and a kinetic energy of E-k = 1.2 +/- 0.3 x 10(51) erg. The optical spectra of SN 2020acat display hydrogen signatures well into the transitional period (greater than or similar to 100 d), between the photospheric and the nebular phases. The spectra also display a strong feature around 4900 angstrom that cannot be solely accounted for by the presence of the Fe II 5018 line. We suggest that the Fell feature was augmented by He I 5016 and possibly by the presence of N II 5005. From both photometric and spectroscopic analysis, we inferred that the progenitor of SN 2020acat was an intermediate-mass compact star with an M(ZAMS )of 15-20 M-circle dot.",
keywords = "supernovae: general, supernovae: individual: SN 2020acat, BOLOMETRIC LIGHT CURVES, COMPACT PROGENITOR, UBVRI PHOTOMETRY, SN-1993J, SPECTRA, TELESCOPE, EVOLUTION, DISTANCE, M81, CONSTRAINTS",
author = "K. Medler and Mazzali, {P. A.} and J. Teffs and C. Ashall and Anderson, {J. P.} and Iair Arcavi and S. Benetti and Bostroem, {K. A.} and J. Burke and Y-z Cai and P. Charalampopoulos and N. Elias-Rosa and M. Ergon and L. Galbany and M. Gromadzki and D. Hiramatsu and Howell, {D. A.} and C. Inserra and P. Lundqvist and C. McCully and T. Muller-Bravo and M. Newsome and M. Nicholl and {Padilla Gonzalez}, E. and E. Paraskeva and A. Pastorello and C. Pellegrino and Pessi, {P. J.} and A. Reguitti and Reynolds, {T. M.} and R. Roy and G. Terreran and L. Tomasella and Young, {D. R.}",
year = "2022",
month = may,
day = "27",
doi = "10.1093/mnras/stac1192",
language = "English",
volume = "513",
pages = "5540--5558",
journal = "Royal Astronomical Society. Monthly Notices",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "4",

}

RIS

TY - JOUR

T1 - SN 2020acat

T2 - an energetic fast rising Type IIb supernova

AU - Medler, K.

AU - Mazzali, P. A.

AU - Teffs, J.

AU - Ashall, C.

AU - Anderson, J. P.

AU - Arcavi, Iair

AU - Benetti, S.

AU - Bostroem, K. A.

AU - Burke, J.

AU - Cai, Y-z

AU - Charalampopoulos, P.

AU - Elias-Rosa, N.

AU - Ergon, M.

AU - Galbany, L.

AU - Gromadzki, M.

AU - Hiramatsu, D.

AU - Howell, D. A.

AU - Inserra, C.

AU - Lundqvist, P.

AU - McCully, C.

AU - Muller-Bravo, T.

AU - Newsome, M.

AU - Nicholl, M.

AU - Padilla Gonzalez, E.

AU - Paraskeva, E.

AU - Pastorello, A.

AU - Pellegrino, C.

AU - Pessi, P. J.

AU - Reguitti, A.

AU - Reynolds, T. M.

AU - Roy, R.

AU - Terreran, G.

AU - Tomasella, L.

AU - Young, D. R.

PY - 2022/5/27

Y1 - 2022/5/27

N2 - The ultraviolet (UV) and near-infrared (NIR) photometric and optical spectroscopic observations of SN 2020acat covering similar to 250 d after explosion are presented here. Using the fast rising photometric observations, spanning from the UV to NIR wavelengths, a pseudo-bolometric light curve was constructed and compared to several other well-observed Type lib supernovae (SNe lib). SN 2020acat displayed a very short rise time reaching a peak luminosity of Log(10) (L) = 42.49 +/- 0.17 erg s(-1) in only -14.6 +/- 0.3 d. From modelling of the pseudo-bolometric light curve, we estimated a total mass of Ni-56 synthesized by SN 2020acat of M-Ni = 0.13 +/- 0.03 M-circle dot, with an ejecta mass of M-circle dot = 2.3 +/- 0.4 M-circle dot and a kinetic energy of E-k = 1.2 +/- 0.3 x 10(51) erg. The optical spectra of SN 2020acat display hydrogen signatures well into the transitional period (greater than or similar to 100 d), between the photospheric and the nebular phases. The spectra also display a strong feature around 4900 angstrom that cannot be solely accounted for by the presence of the Fe II 5018 line. We suggest that the Fell feature was augmented by He I 5016 and possibly by the presence of N II 5005. From both photometric and spectroscopic analysis, we inferred that the progenitor of SN 2020acat was an intermediate-mass compact star with an M(ZAMS )of 15-20 M-circle dot.

AB - The ultraviolet (UV) and near-infrared (NIR) photometric and optical spectroscopic observations of SN 2020acat covering similar to 250 d after explosion are presented here. Using the fast rising photometric observations, spanning from the UV to NIR wavelengths, a pseudo-bolometric light curve was constructed and compared to several other well-observed Type lib supernovae (SNe lib). SN 2020acat displayed a very short rise time reaching a peak luminosity of Log(10) (L) = 42.49 +/- 0.17 erg s(-1) in only -14.6 +/- 0.3 d. From modelling of the pseudo-bolometric light curve, we estimated a total mass of Ni-56 synthesized by SN 2020acat of M-Ni = 0.13 +/- 0.03 M-circle dot, with an ejecta mass of M-circle dot = 2.3 +/- 0.4 M-circle dot and a kinetic energy of E-k = 1.2 +/- 0.3 x 10(51) erg. The optical spectra of SN 2020acat display hydrogen signatures well into the transitional period (greater than or similar to 100 d), between the photospheric and the nebular phases. The spectra also display a strong feature around 4900 angstrom that cannot be solely accounted for by the presence of the Fe II 5018 line. We suggest that the Fell feature was augmented by He I 5016 and possibly by the presence of N II 5005. From both photometric and spectroscopic analysis, we inferred that the progenitor of SN 2020acat was an intermediate-mass compact star with an M(ZAMS )of 15-20 M-circle dot.

KW - supernovae: general

KW - supernovae: individual: SN 2020acat

KW - BOLOMETRIC LIGHT CURVES

KW - COMPACT PROGENITOR

KW - UBVRI PHOTOMETRY

KW - SN-1993J

KW - SPECTRA

KW - TELESCOPE

KW - EVOLUTION

KW - DISTANCE

KW - M81

KW - CONSTRAINTS

U2 - 10.1093/mnras/stac1192

DO - 10.1093/mnras/stac1192

M3 - Journal article

VL - 513

SP - 5540

EP - 5558

JO - Royal Astronomical Society. Monthly Notices

JF - Royal Astronomical Society. Monthly Notices

SN - 0035-8711

IS - 4

ER -

ID: 315538958