LSQ13DDU: A rapidly evolving stripped-envelope supernova with early circumstellar interaction signatures

Peter Clark; Kate Maguire; Cosimo Inserra; Simon Prentice; Stephen J. Smartt; Carlos Contreras; Griffin Hossenizadeh; Eric Y. Hsiao; Erkki Kankare; Mansi Kasliwal; Peter Nugent; Melissa Shahbandeh; Charles Baltay; David Rabinowitz; Iair Arcavi; Chris Ashall; Christopher R. Burns; Emma Callis; Ting Wan Chen; Tiara Diamond; Morgan Fraser; D. Andrew Howell; Emir Karamehmetoglu; Rubina Kotak; Joseph Lyman; Nidia Morrell; Mark Phillips; Giuliano Pignata; Miika Pursiainen; Jesper Sollerman; Maximilian Stritzinger; Mark Sullivan; David Young

doi:10.1093/mnras/stz3598

LSQ13DDU: A rapidly evolving stripped-envelope supernova with early circumstellar interaction signatures

Peter Clark^*, Kate Maguire, Cosimo Inserra, Simon Prentice, Stephen J. Smartt, Carlos Contreras, Griffin Hossenizadeh, Eric Y. Hsiao, Erkki Kankare, Mansi Kasliwal, Peter Nugent, Melissa Shahbandeh, Charles Baltay, David Rabinowitz, Iair Arcavi, Chris Ashall, Christopher R. Burns, Emma Callis, Ting Wan Chen, Tiara DiamondMorgan Fraser, D. Andrew Howell, Emir Karamehmetoglu, Rubina Kotak, Joseph Lyman, Nidia Morrell, Mark Phillips, Giuliano Pignata, Miika Pursiainen, Jesper Sollerman, Maximilian Stritzinger, Mark Sullivan, David Young

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

This paper describes the rapidly evolving and unusual supernova LSQ13ddu, discovered by the La Silla-QUEST survey. LSQ13ddu displayed a rapid rise of just 4.8 ± 0.9 d to reach a peak brightness of −19.70 ± 0.02 mag in the LSQgr band. Early spectra of LSQ13ddu showed the presence of weak and narrow He I features arising from interaction with circumstellar material (CSM). These interaction signatures weakened quickly, with broad features consistent with those seen in stripped-envelope SNe becoming dominant around two weeks after maximum. The narrow He I velocities are consistent with the wind velocities of luminous blue variables but its spectra lack the typically seen hydrogen features. The fast and bright early light curve is inconsistent with radioactive ⁵⁶Ni powering but can be explained through a combination of CSM interaction and an underlying ⁵⁶Ni decay component that dominates the later time behaviour of LSQ13ddu. Based on the strength of the underlying broad features, LSQ13ddu appears deficient in He compared to standard SNe Ib.

Original language	English
Pages (from-to)	2208-2228
Number of pages	21
Journal	Monthly Notices of the Royal Astronomical Society
Volume	492
Issue number	2
DOIs	https://doi.org/10.1093/mnras/stz3598
State	Published - 1 Feb 2020

Keywords

Circumstellar matter
Supernovae: general
Supernovae: individual: LSQ13ddu

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10.1093/mnras/stz3598

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Clark, P., Maguire, K., Inserra, C., Prentice, S., Smartt, S. J., Contreras, C., Hossenizadeh, G., Hsiao, E. Y., Kankare, E., Kasliwal, M., Nugent, P., Shahbandeh, M., Baltay, C., Rabinowitz, D., Arcavi, I., Ashall, C., Burns, C. R., Callis, E., Chen, T. W., ... Young, D. (2020). LSQ13DDU: A rapidly evolving stripped-envelope supernova with early circumstellar interaction signatures. Monthly Notices of the Royal Astronomical Society, 492(2), 2208-2228. https://doi.org/10.1093/mnras/stz3598

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title = "LSQ13DDU: A rapidly evolving stripped-envelope supernova with early circumstellar interaction signatures",

abstract = "This paper describes the rapidly evolving and unusual supernova LSQ13ddu, discovered by the La Silla-QUEST survey. LSQ13ddu displayed a rapid rise of just 4.8 ± 0.9 d to reach a peak brightness of −19.70 ± 0.02 mag in the LSQgr band. Early spectra of LSQ13ddu showed the presence of weak and narrow He I features arising from interaction with circumstellar material (CSM). These interaction signatures weakened quickly, with broad features consistent with those seen in stripped-envelope SNe becoming dominant around two weeks after maximum. The narrow He I velocities are consistent with the wind velocities of luminous blue variables but its spectra lack the typically seen hydrogen features. The fast and bright early light curve is inconsistent with radioactive 56Ni powering but can be explained through a combination of CSM interaction and an underlying 56Ni decay component that dominates the later time behaviour of LSQ13ddu. Based on the strength of the underlying broad features, LSQ13ddu appears deficient in He compared to standard SNe Ib.",

keywords = "Circumstellar matter, Supernovae: general, Supernovae: individual: LSQ13ddu",

author = "Peter Clark and Kate Maguire and Cosimo Inserra and Simon Prentice and Smartt, {Stephen J.} and Carlos Contreras and Griffin Hossenizadeh and Hsiao, {Eric Y.} and Erkki Kankare and Mansi Kasliwal and Peter Nugent and Melissa Shahbandeh and Charles Baltay and David Rabinowitz and Iair Arcavi and Chris Ashall and Burns, {Christopher R.} and Emma Callis and Chen, {Ting Wan} and Tiara Diamond and Morgan Fraser and {Andrew Howell}, D. and Emir Karamehmetoglu and Rubina Kotak and Joseph Lyman and Nidia Morrell and Mark Phillips and Giuliano Pignata and Miika Pursiainen and Jesper Sollerman and Maximilian Stritzinger and Mark Sullivan and David Young",

note = "Publisher Copyright: {\textcopyright} 2019 The Author(s)",

year = "2020",

month = feb,

day = "1",

doi = "10.1093/mnras/stz3598",

language = "אנגלית",

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Clark, P, Maguire, K, Inserra, C, Prentice, S, Smartt, SJ, Contreras, C, Hossenizadeh, G, Hsiao, EY, Kankare, E, Kasliwal, M, Nugent, P, Shahbandeh, M, Baltay, C, Rabinowitz, D, Arcavi, I, Ashall, C, Burns, CR, Callis, E, Chen, TW, Diamond, T, Fraser, M, Andrew Howell, D, Karamehmetoglu, E, Kotak, R, Lyman, J, Morrell, N, Phillips, M, Pignata, G, Pursiainen, M, Sollerman, J, Stritzinger, M, Sullivan, M & Young, D 2020, 'LSQ13DDU: A rapidly evolving stripped-envelope supernova with early circumstellar interaction signatures', Monthly Notices of the Royal Astronomical Society, vol. 492, no. 2, pp. 2208-2228. https://doi.org/10.1093/mnras/stz3598

TY - JOUR

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T2 - A rapidly evolving stripped-envelope supernova with early circumstellar interaction signatures

AU - Clark, Peter

AU - Maguire, Kate

AU - Inserra, Cosimo

AU - Prentice, Simon

AU - Smartt, Stephen J.

AU - Contreras, Carlos

AU - Hossenizadeh, Griffin

AU - Hsiao, Eric Y.

AU - Kankare, Erkki

AU - Kasliwal, Mansi

AU - Nugent, Peter

AU - Shahbandeh, Melissa

AU - Baltay, Charles

AU - Rabinowitz, David

AU - Arcavi, Iair

AU - Ashall, Chris

AU - Burns, Christopher R.

AU - Callis, Emma

AU - Chen, Ting Wan

AU - Diamond, Tiara

AU - Fraser, Morgan

AU - Andrew Howell, D.

AU - Karamehmetoglu, Emir

AU - Kotak, Rubina

AU - Lyman, Joseph

AU - Morrell, Nidia

AU - Phillips, Mark

AU - Pignata, Giuliano

AU - Pursiainen, Miika

AU - Sollerman, Jesper

AU - Stritzinger, Maximilian

AU - Sullivan, Mark

AU - Young, David

PY - 2020/2/1

Y1 - 2020/2/1

N2 - This paper describes the rapidly evolving and unusual supernova LSQ13ddu, discovered by the La Silla-QUEST survey. LSQ13ddu displayed a rapid rise of just 4.8 ± 0.9 d to reach a peak brightness of −19.70 ± 0.02 mag in the LSQgr band. Early spectra of LSQ13ddu showed the presence of weak and narrow He I features arising from interaction with circumstellar material (CSM). These interaction signatures weakened quickly, with broad features consistent with those seen in stripped-envelope SNe becoming dominant around two weeks after maximum. The narrow He I velocities are consistent with the wind velocities of luminous blue variables but its spectra lack the typically seen hydrogen features. The fast and bright early light curve is inconsistent with radioactive 56Ni powering but can be explained through a combination of CSM interaction and an underlying 56Ni decay component that dominates the later time behaviour of LSQ13ddu. Based on the strength of the underlying broad features, LSQ13ddu appears deficient in He compared to standard SNe Ib.

AB - This paper describes the rapidly evolving and unusual supernova LSQ13ddu, discovered by the La Silla-QUEST survey. LSQ13ddu displayed a rapid rise of just 4.8 ± 0.9 d to reach a peak brightness of −19.70 ± 0.02 mag in the LSQgr band. Early spectra of LSQ13ddu showed the presence of weak and narrow He I features arising from interaction with circumstellar material (CSM). These interaction signatures weakened quickly, with broad features consistent with those seen in stripped-envelope SNe becoming dominant around two weeks after maximum. The narrow He I velocities are consistent with the wind velocities of luminous blue variables but its spectra lack the typically seen hydrogen features. The fast and bright early light curve is inconsistent with radioactive 56Ni powering but can be explained through a combination of CSM interaction and an underlying 56Ni decay component that dominates the later time behaviour of LSQ13ddu. Based on the strength of the underlying broad features, LSQ13ddu appears deficient in He compared to standard SNe Ib.

KW - Circumstellar matter

KW - Supernovae: general

KW - Supernovae: individual: LSQ13ddu

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JF - Monthly Notices of the Royal Astronomical Society

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LSQ13DDU: A rapidly evolving stripped-envelope supernova with early circumstellar interaction signatures

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