Ultraviolet light curves of Gaia16apd in superluminous supernova models

Abstract

Observations of Gaia16apd revealed extremely luminous ultraviolet emission among superluminous supernovae (SLSNe). Using radiation hydrodynamics simulations we perform a comparison of UV light curves, color temperatures and photospheric velocities between the most popular SLSN models: pair-instability supernova, magnetar and interaction with circumstellar medium. We find that the interaction model is the most promising to explain the extreme UV luminosity of Gaia16apd. The differences in late-time UV emission and in color evolution found between the models can be used to link an observed SLSN event to the most appropriate model. Observations at UV wavelengths can be used to clarify the nature of SLSNe and more attention should be paid to them in future follow-up observations.

5 pages, 6 figures, accepted for publication in the Astrophysical Journal Letters on 18 Jul 2017

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Cited by in corpus (2)

• Searches for Population III pair-instability supernovae: Predictions for ULTIMATE-Subaru and WFIRST
• Synthetic spectra of energetic core-collapse supernovae and the early spectra of SN 2007bi and SN 1999as