SIMBAD references

2020MNRAS.492.2208C - Mon. Not. R. Astron. Soc., 492, 2208-2228 (2020/February-3)

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

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., DIAMOND T., FRASER M., HOWELL D.A., KARAMEHMETOGLU E., KOTAK R., LYMAN J., MORRELL N., PHILLIPS M., PIGNATA G., PURSIAINEN M., SOLLERMAN J., STRITZINGER M., SULLIVAN M. and YOUNG D.

Abstract (from CDS):

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.

Abstract Copyright: © 2020 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): circumstellar matter - supernovae: general - supernovae: individual: LSQ13ddu

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

CDS comments: GRB 131123A is not in Simbad. Probable misprints in Figure 17: iPTF16aki = iPTF14aki and PTF12dly = PTF12ldy.

Simbad objects: 39

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2020.10.24-15:13:36

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