Looking for the “Blue Bump” in the Early Light Curve of SN Ia using an Open Supernovae Catalog

Document Type

Article

Publication Title

Research Notes of the AAS

Publication Date

5-2023

Abstract/ Summary

In this study we used archival supernova data from a publicly available database to look for a blue excess in the early light curves of SN Ia. This blue excess represents a simple proposed method to differentiate between single- and double-degenerate formation scenarios. Our search found 2 candidates out of 40 SN Ia, and including selection effects implies an upper limit of ∼50% of the supernovae in the sample originated in a binary with a non-degenerate companion.

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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