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Get Free AccessLight echoes give us a unique perspective on the nature of supernovae and non-terminal stellar explosions. Spectroscopy of light echoes can reveal details on the kinematics of the ejecta, probe asymmetry, and reveal details on its interaction with circumstellar matter, thus expanding our understanding of these transient events. However, the spectral features arise from a complex interplay between the source photons, the reflecting dust geometry, and the instrumental setup and observing conditions. In this work we present an improved method for modeling these effects in light echo spectra, one that relaxes the simplifying assumption of a light curve weighted sum, and instead estimates the true relative contribution of each phase. We discuss our logic, the gains we obtain over light echo analysis method(s) used in the past, and prospects for further improvements. Lastly, we show how the new method improves our analysis of echoes from Tycho's supernova (SN 1572) as an example.
Roee Partoush, A. Rest, J. Jencson, D. Poznanski, R. J. Foley, C. D. Kilpatrick, Jennifer E. Andrews, Rodrigo Angulo, Carles Badenes, Federica Bianco, Alexei V Filippenko, Ryan Ridden-Harper, Xiaolong Li, S. Margheim, T. Matheson, Knut Olsen, M. R. Siebert, Nathan Smith, D. L. Welch, A. Zenteno (2023). SpectAcLE: An Improved Method for Modeling Light Echo Spectra. , DOI: https://doi.org/10.48550/arxiv.2310.01501.
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Type
Preprint
Year
2023
Authors
20
Datasets
0
Total Files
0
Language
en
DOI
https://doi.org/10.48550/arxiv.2310.01501
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