Seeing the Outer Edge of the Infant Type Ia Supernova 2024epr in the Optical and Near Infrared

Seeing the Outer Edge of the Infant Type Ia Supernova 2024epr in the Optical and Near Infrared

We present optical-to-near-infrared (NIR) photometry and spectroscopy of the Type Ia supernova (SN~Ia) 2024epr, including NIR spectra observed within two days of first light. The early-time optical spectra show strong, high-velocity Ca and Si features near rarely-observed velocities at $\sim$0.1$c$,...

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Main Authors: W. B. Hoogendam, D. O. Jones, C. Ashall, B. J. Shappee, R. J. Foley, M. A. Tucker, M. E. Huber, K. Auchettl, D. D. Desai, A. Do, J. T. Hinkle, S. Romagnoli, J. Shi, A. Syncatto, C. R. Angus, K. C. Chambers, D. A. Coulter, K. W. Davis, T. de Boer, A. Gagliano, M. Kong, C. -C. Lin, T. B. Lowe, E. A. Magnier, P. Minguez, Y. -C. Pan, K. C. Patra, S. A. Severson, K. Taggart, A. R. Wasserman, S. K. Yadavalli, P Chen, R. S. Post
Format: Article
Language:English
Published: Maynooth Academic Publishing 2025-08-01
Series:The Open Journal of Astrophysics
Online Access:https://doi.org/10.33232/001c.143462
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https://doi.org/10.33232/001c.143462

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