Exploring the Potential Diversity of Early Type Ia Supernova Light Curves

Abstract

During the first several days after explosion, Type Ia supernova light curves probe the outer layers of the exploding star and therefore provide important clues for identifying their progenitors. We investigate how both the shallow ${}^{56}$Ni distribution and the presence of circumstellar material shape these early light curves. This is performed using a series of numerical experiments with parameterized properties for systematic exploration. Although not all of the considered models may be realized in nature (and indeed there are arguments why some of them should not occur), the spirit of this work is to provide a broader exploration of the diversity of possibilities. We find that shallower ${}^{56}$Ni leads to steeper, bluer light curves. Differences in the shape of the rise can introduce errors in estimating the explosion time and thus impact efforts to infer upper limits on the progenitor or companion radius from a lack of observed shock cooling emission. Circumstellar material can lead to significant luminosity during the first few days, but its presence can be difficult to identify depending on the degree of nickel mixing. In some cases, the hot emission of circumstellar material may even lead to a signature similar to interaction with a companion, and thus in the future additional diagnostics should be gathered for properly assessing early light curves.

Revised version with additional figures and discussions. 8 pages, 15 figures, accepted for publication in The Astrophysical Journal

References in corpus (9)

• Modules for Experiments in Stellar Astrophysics (MESA)
• Constraining the Type Ia Supernova Progenitor: The Search for Hydrogen in Nebular Spectra
• Strong Ultraviolet Pulse From a Newborn Type Ia Supernova
• The Rising Light Curves of Type Ia Supernovae
• Nebular spectra and abundance tomography of the type Ia supernova SN 2011fe: a normal SN Ia with a stable Fe core
• Thermal Runaway During the Evolution of ONeMg Cores towards Accretion-Induced Collapse
• The Viscous Evolution of White Dwarf Merger Remnants
• No trace of a single-degenerate companion in late spectra of SNe 2011fe and 2014J
• Early ultraviolet signatures from the interaction of Type Ia supernova ejecta with a stellar companion

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