CaltechAUTHORS
Published February 2020 | Version Accepted Version + Published
Journal Article Open

LSQ13ddu: a rapidly evolving stripped-envelope supernova with early circumstellar interaction signatures

Creators

  • 1. ROR icon Queen's University Belfast
  • 2. ROR icon Trinity College Dublin
  • 3. ROR icon Cardiff University
  • 4. ROR icon Las Campanas Observatory
  • 5. ROR icon Harvard-Smithsonian Center for Astrophysics
  • 6. ROR icon Florida State University
  • 7. ROR icon University of Turku
  • 8. ROR icon California Institute of Technology
  • 9. ROR icon Lawrence Berkeley National Laboratory
  • 10. ROR icon Yale University
  • 11. ROR icon Tel Aviv University
  • 12. ROR icon Carnegie Observatories
  • 13. ROR icon University College Dublin
  • 14. ROR icon Max Planck Institute for Extraterrestrial Physics
  • 15. ROR icon Goddard Space Flight Center
  • 16. ROR icon Las Cumbres Observatory Global Telescope Network
  • 17. ROR icon University of California, Santa Barbara
  • 18. ROR icon Aarhus University
  • 19. ROR icon Stockholm University
  • 20. ROR icon University of Warwick
  • 21. ROR icon Andrés Bello University
  • 22. ROR icon Millennium Institute of Astrophysics
  • 23. ROR icon University of Southampton

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 HeI 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 HeI 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.

Additional Information

© 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model). Accepted 2019 December 20. Received 2019 December 20; in original form 2019 March 29. Published: 03 January 2020. PC acknowledges funding from the Department for Education. KM acknowledges support from the UK Science and Technology Facility Council through an Ernest Rutherford Fellowship (ST/M005348/1) and from EU/H2020/ERC grant no. 758638. GH and DAH are supported by National Science Foundation grant AST-1313484. EYH, MS, and CA acknowledge support from the National Science Foundation under grant no. AST-1613472. T-WC acknowledges funding from the Alexander von Humboldt Foundation. MF is supported by a Royal Society – Science Foundation Ireland University Research Fellowship. GP acknowledges support by the Ministry of Economy, Development, and Tourism's Millennium Science Initiative through grant IC120009, awarded to The Millennium Institute of Astrophysics, MAS. MS is supported in part by a grant (13261) from VILLUM FONDEN and a project grant from the Independent Research Fund Denmark. MS acknowledges support from EU/FP7-ERC grant no. 615929. Based on observations collected at the European Organisation for Astronomical Research in the Southern Hemisphere, Chile as part of PESSTO, (the Public ESO Spectroscopic Survey for Transient Objects Survey) ESO program ID 188.D-3003. The CSP-II has been funded by the USA's National Science Foundation under grants AST-0306969, AST-0607438, AST-1008343, AST-1613426, AST-1613455, and AST-1613472, and in part by a Sapere Aude Level 2 grant funded by the Danish Agency for Science and Technology and Innovation (PI Stritzinger). This work makes use of the NASA/IPAC Extragalactic Database (NED), which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration. This work makes use of observations from the LCOGT Network. The work made use of Swift/UVOT data reduced by P. J. Brown and released in the Swift Optical/Ultraviolet Supernova Archive (SOUSA). SOUSA is supported by NASA's Astrophysics Data Analysis Program through grant NNX13AF35G. The Liverpool Telescope is operated on the island of La Palma by Liverpool John Moores University in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias with financial support from the UK STFC (Project ID: PL13B10, PL13B16).

Attached Files

Published - stz3598.pdf

Accepted Version - 1912.05986.pdf

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1912.05986.pdf

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Additional details

Identifiers

Eprint ID
101640
Resolver ID
CaltechAUTHORS:20200228-125051707

Related works

Describes
https://arxiv.org/abs/1912.05986 (URL)

Funding

Department for Education
Science and Technology Facilities Council (STFC)
ST/M005348/1
European Research Council (ERC)
758638
NSF
AST-1313484
NSF
AST-1613472
Alexander von Humboldt Foundation
Royal Society
Science Foundation, Ireland
Iniciativa Científica Milenio del Ministerio de Economía, Fomento y Turismo
IC120009
VILLUM FONDEN
13261
Independent Research Fund Denmark
European Research Council (ERC)
615929
NSF
AST-0306969
NSF
AST-0607438
NSF
AST-1008343
NSF
AST-1613426
NSF
AST-1613455
NSF
AST-1613472
Danish Agency for Science and Technology and Innovation
NASA/JPL/Caltech
NASA
NNX13AF35G

Dates

Created
2020-02-28
Created from EPrint's datestamp field
Updated
2021-11-16
Created from EPrint's last_modified field

Caltech Custom Metadata

Caltech groups
Astronomy Department