SN 2020kyg and the rates of faint Iax supernovae from ATLAS

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SN 2020kyg and the rates of faint Iax supernovae from ATLAS. / Srivastav, Shubham; Smartt, S. J.; Huber, M. E.; Chambers, K. C.; Angus, C. R.; Chen, T-W; Callan, F. P.; Gillanders, J. H.; McBrien, O. R.; Sim, S. A.; Fulton, M.; Hjorth, J.; Smith, K. W.; Young, D. R.; Auchettl, K.; Anderson, J. P.; Pignata, G.; de Boer, T. J. L.; Lin, C-C; Magnier, E. A.

In: Monthly Notices of the Royal Astronomical Society, Vol. 511, No. 2, 15.02.2022, p. 2708-2731.

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

Harvard

Srivastav, S, Smartt, SJ, Huber, ME, Chambers, KC, Angus, CR, Chen, T-W, Callan, FP, Gillanders, JH, McBrien, OR, Sim, SA, Fulton, M, Hjorth, J, Smith, KW, Young, DR, Auchettl, K, Anderson, JP, Pignata, G, de Boer, TJL, Lin, C-C & Magnier, EA 2022, 'SN 2020kyg and the rates of faint Iax supernovae from ATLAS', Monthly Notices of the Royal Astronomical Society, vol. 511, no. 2, pp. 2708-2731. https://doi.org/10.1093/mnras/stac177

APA

Srivastav, S., Smartt, S. J., Huber, M. E., Chambers, K. C., Angus, C. R., Chen, T-W., Callan, F. P., Gillanders, J. H., McBrien, O. R., Sim, S. A., Fulton, M., Hjorth, J., Smith, K. W., Young, D. R., Auchettl, K., Anderson, J. P., Pignata, G., de Boer, T. J. L., Lin, C-C., & Magnier, E. A. (2022). SN 2020kyg and the rates of faint Iax supernovae from ATLAS. Monthly Notices of the Royal Astronomical Society, 511(2), 2708-2731. https://doi.org/10.1093/mnras/stac177

Vancouver

Srivastav S, Smartt SJ, Huber ME, Chambers KC, Angus CR, Chen T-W et al. SN 2020kyg and the rates of faint Iax supernovae from ATLAS. Monthly Notices of the Royal Astronomical Society. 2022 Feb 15;511(2):2708-2731. https://doi.org/10.1093/mnras/stac177

Author

Srivastav, Shubham ; Smartt, S. J. ; Huber, M. E. ; Chambers, K. C. ; Angus, C. R. ; Chen, T-W ; Callan, F. P. ; Gillanders, J. H. ; McBrien, O. R. ; Sim, S. A. ; Fulton, M. ; Hjorth, J. ; Smith, K. W. ; Young, D. R. ; Auchettl, K. ; Anderson, J. P. ; Pignata, G. ; de Boer, T. J. L. ; Lin, C-C ; Magnier, E. A. / SN 2020kyg and the rates of faint Iax supernovae from ATLAS. In: Monthly Notices of the Royal Astronomical Society. 2022 ; Vol. 511, No. 2. pp. 2708-2731.

Bibtex

@article{dc81ff3a4096479989830bd19586e6e6,
title = "SN 2020kyg and the rates of faint Iax supernovae from ATLAS",
abstract = "We present multiwavelength follow-up observations of the ATLAS discovered faint Iax supernova SN 2020kyg that peaked at an absolute magnitude of M-g approximate to -14.9 +/- 0.2, making it another member of the faint Iax supernova population. The bolometric light curve requires only approximate to 7 x 10(-3) M-circle dot of radioactive Ni-56, with an ejected mass of M-ej similar to 0.4 M-circle dot and a low kinetic energy of E approximate to 0.05 +/- 0.02 x 10(51) erg. We construct a homogeneous volume-limited sample of 902 transients observed by ATLAS within 100 Mpc during a 3.5 yr span. Using this sample, we constrain the rates of faint Iax (M-r greater than or similar to -16) events within 60 Mpc at 12(-8)(+1)(4) per cent of the SN Ia rate. The overall Iax rate, at 15(-9)(+)(17) per cent of the Ia rate, is dominated by the low-luminosity events, with luminous SNe Iax (M-r less than or similar to -17.5) like 2002cx and 2005hk, accounting for only 0.9(-0.5)(+1.1) per cent of the Ia rate (a 2 sigma upper limit of approximately 3 per cent). We favour the hybrid CONe WD + He star progenitor channel involving a failed deflagration of a near Chandrasekhar mass white dwarf, expected to leave a bound remnant and a surviving secondary companion, as a candidate explanation for faint Iax explosions. This scenario requires short delay times, consistent with the observed environments of SNe Iax. Furthermore, binary population synthesis calculations have suggested rates of 1-18 per cent of the SN Ia rate for this channel, consistent with our rate estimates.",
keywords = "supernovae: general, supernovae: individual: SN 2020kyg, NEAR-INFRARED OBSERVATIONS, EXTREMELY LOW-LUMINOSITY, LATE-TIME SPECTROSCOPY, WHITE-DWARF, GAIA DR2, REDSHIFT, I., EVOLUTION, TRANSIENT, 2005HK",
author = "Shubham Srivastav and Smartt, {S. J.} and Huber, {M. E.} and Chambers, {K. C.} and Angus, {C. R.} and T-W Chen and Callan, {F. P.} and Gillanders, {J. H.} and McBrien, {O. R.} and Sim, {S. A.} and M. Fulton and J. Hjorth and Smith, {K. W.} and Young, {D. R.} and K. Auchettl and Anderson, {J. P.} and G. Pignata and {de Boer}, {T. J. L.} and C-C Lin and Magnier, {E. A.}",
year = "2022",
month = feb,
day = "15",
doi = "10.1093/mnras/stac177",
language = "English",
volume = "511",
pages = "2708--2731",
journal = "Royal Astronomical Society. Monthly Notices",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "2",

}

RIS

TY - JOUR

T1 - SN 2020kyg and the rates of faint Iax supernovae from ATLAS

AU - Srivastav, Shubham

AU - Smartt, S. J.

AU - Huber, M. E.

AU - Chambers, K. C.

AU - Angus, C. R.

AU - Chen, T-W

AU - Callan, F. P.

AU - Gillanders, J. H.

AU - McBrien, O. R.

AU - Sim, S. A.

AU - Fulton, M.

AU - Hjorth, J.

AU - Smith, K. W.

AU - Young, D. R.

AU - Auchettl, K.

AU - Anderson, J. P.

AU - Pignata, G.

AU - de Boer, T. J. L.

AU - Lin, C-C

AU - Magnier, E. A.

PY - 2022/2/15

Y1 - 2022/2/15

N2 - We present multiwavelength follow-up observations of the ATLAS discovered faint Iax supernova SN 2020kyg that peaked at an absolute magnitude of M-g approximate to -14.9 +/- 0.2, making it another member of the faint Iax supernova population. The bolometric light curve requires only approximate to 7 x 10(-3) M-circle dot of radioactive Ni-56, with an ejected mass of M-ej similar to 0.4 M-circle dot and a low kinetic energy of E approximate to 0.05 +/- 0.02 x 10(51) erg. We construct a homogeneous volume-limited sample of 902 transients observed by ATLAS within 100 Mpc during a 3.5 yr span. Using this sample, we constrain the rates of faint Iax (M-r greater than or similar to -16) events within 60 Mpc at 12(-8)(+1)(4) per cent of the SN Ia rate. The overall Iax rate, at 15(-9)(+)(17) per cent of the Ia rate, is dominated by the low-luminosity events, with luminous SNe Iax (M-r less than or similar to -17.5) like 2002cx and 2005hk, accounting for only 0.9(-0.5)(+1.1) per cent of the Ia rate (a 2 sigma upper limit of approximately 3 per cent). We favour the hybrid CONe WD + He star progenitor channel involving a failed deflagration of a near Chandrasekhar mass white dwarf, expected to leave a bound remnant and a surviving secondary companion, as a candidate explanation for faint Iax explosions. This scenario requires short delay times, consistent with the observed environments of SNe Iax. Furthermore, binary population synthesis calculations have suggested rates of 1-18 per cent of the SN Ia rate for this channel, consistent with our rate estimates.

AB - We present multiwavelength follow-up observations of the ATLAS discovered faint Iax supernova SN 2020kyg that peaked at an absolute magnitude of M-g approximate to -14.9 +/- 0.2, making it another member of the faint Iax supernova population. The bolometric light curve requires only approximate to 7 x 10(-3) M-circle dot of radioactive Ni-56, with an ejected mass of M-ej similar to 0.4 M-circle dot and a low kinetic energy of E approximate to 0.05 +/- 0.02 x 10(51) erg. We construct a homogeneous volume-limited sample of 902 transients observed by ATLAS within 100 Mpc during a 3.5 yr span. Using this sample, we constrain the rates of faint Iax (M-r greater than or similar to -16) events within 60 Mpc at 12(-8)(+1)(4) per cent of the SN Ia rate. The overall Iax rate, at 15(-9)(+)(17) per cent of the Ia rate, is dominated by the low-luminosity events, with luminous SNe Iax (M-r less than or similar to -17.5) like 2002cx and 2005hk, accounting for only 0.9(-0.5)(+1.1) per cent of the Ia rate (a 2 sigma upper limit of approximately 3 per cent). We favour the hybrid CONe WD + He star progenitor channel involving a failed deflagration of a near Chandrasekhar mass white dwarf, expected to leave a bound remnant and a surviving secondary companion, as a candidate explanation for faint Iax explosions. This scenario requires short delay times, consistent with the observed environments of SNe Iax. Furthermore, binary population synthesis calculations have suggested rates of 1-18 per cent of the SN Ia rate for this channel, consistent with our rate estimates.

KW - supernovae: general

KW - supernovae: individual: SN 2020kyg

KW - NEAR-INFRARED OBSERVATIONS

KW - EXTREMELY LOW-LUMINOSITY

KW - LATE-TIME SPECTROSCOPY

KW - WHITE-DWARF

KW - GAIA DR2

KW - REDSHIFT

KW - I.

KW - EVOLUTION

KW - TRANSIENT

KW - 2005HK

U2 - 10.1093/mnras/stac177

DO - 10.1093/mnras/stac177

M3 - Journal article

VL - 511

SP - 2708

EP - 2731

JO - Royal Astronomical Society. Monthly Notices

JF - Royal Astronomical Society. Monthly Notices

SN - 0035-8711

IS - 2

ER -

ID: 302384675