Extending supernova spectral templates for next-generation space telescope observations

Published

Journal Article

© 2018. The Astronomical Society of the Pacific. All rights reserved. Empirical models of supernova (SN) spectral energy distributions (SEDs) are widely used for SN survey simulations and photometric classifications. The existing library of SED models has excellent optical templates, but limited, poorly constrained coverage of ultraviolet (UV) and infrared (IR) wavelengths. However, both regimes are critical for the design and operation of future SN surveys, particularly at IR wavelengths that will be accessible with the James Webb Space Telescope and the Wide-Field Infrared Survey Telescope. We create a public repository of improved empirical SED templates using a sampling of Type Ia and core-collapse (CC) photometric light curves to extend the Type Ia parameterized SALT2 model and a set of SN Ib, SN Ic, and SN II SED templates into the UV and near-IR. We apply this new repository of extrapolated SN SED models to examine how future surveys can discriminate between CC and Type Ia SNe at UV and IR wavelengths, and present an open-source software package written in Python, SNSEDextend, that enables users to generate their own extrapolated SEDs.

Full Text

Duke Authors

Cited Authors

  • Pierel, JDR; Rodney, S; Avelino, A; Bianco, F; Filippenko, AV; Foley, RJ; Friedman, A; Hicken, M; Hounsell, R; Jha, SW; Kessler, R; Kirshner, RP; Mandel, K; Narayan, G; Scolnic, D; Strolger, L

Published Date

  • November 1, 2018

Published In

Volume / Issue

  • 130 / 993

International Standard Serial Number (ISSN)

  • 0004-6280

Digital Object Identifier (DOI)

  • 10.1088/1538-3873/aadb7a

Citation Source

  • Scopus