STag. II. Classification of Serendipitous Supernovae Observed by Galaxy Redshift Surveys
Abstract With the number of supernovae observed expected to drastically increase thanks to large-scale surveys like the Dark Energy Spectroscopic Instrument (DESI), it is necessary that the tools we use to classify these objects keep up with this increase. We previously created Supernova Tagging and Classification ( STag ) to address this problem by employing machine learning techniques alongside logistic regression in order to assign “tags” to spectra based on spectral features. STag II is a continuation of this work, which now makes use of model supernova spectra combined with real DESI spectra in order to train STag to better deal with realistic data. We also make use of the r lap score as a trustworthiness cut, making for a more robust and accurate supernova classifier than before.
Authors
- S. Juneau (ORCID: https://orcid.org/0000-0002-0000-2394)
- Graziano Rossi (ORCID: https://orcid.org/0000-0002-5102-5019)
- Gregory Tarlé (ORCID: https://orcid.org/0000-0003-1704-0781)
- Laurent Le Guillou (ORCID: https://orcid.org/0000-0001-7178-8868)
- David Sprayberry (ORCID: https://orcid.org/0000-0001-7583-6441)
- Daniel I. Brooks (ORCID: https://orcid.org/0000-0003-1164-2773)
- Axel de la Macorra (ORCID: https://orcid.org/0000-0002-1769-1640)
- Martin Landriau (ORCID: https://orcid.org/0000-0003-1838-8528)
- David Parkinson (ORCID: https://orcid.org/0000-0002-7464-2351)
- A. Palmese (ORCID: https://orcid.org/0000-0002-6011-0530)
- Adam Lambert (ORCID: https://orcid.org/0000-0001-7035-1787)
- J. Aguilar (ORCID: https://orcid.org/0000-0003-0822-452X)
- Anthony Kremin (ORCID: https://orcid.org/0000-0001-6356-7424)
- Eusebio Sanchez (ORCID: https://orcid.org/0000-0002-9646-8198)
- Satya Gontcho A Gontcho (ORCID: https://orcid.org/0000-0003-3142-233X)
- S. BenZvi (ORCID: https://orcid.org/0000-0001-5537-4710)
- ENRIQUE GAZTAÑAGA (ORCID: https://orcid.org/0000-0001-9632-0815)
- Edward F. Schlafly (ORCID: https://orcid.org/0000-0002-3569-7421)
- Cullan Howlett (ORCID: https://orcid.org/0000-0002-1081-9410)
- Arjun T. Dey (ORCID: https://orcid.org/0000-0002-4928-4003)
- Steven P. Ahlen (ORCID: https://orcid.org/0000-0001-6098-7247)
- Aaron Meisner (ORCID: https://orcid.org/0000-0002-1125-7384)
- R. Miquel (ORCID: https://orcid.org/0000-0002-6610-4836)
- Theodore S. Kisner (ORCID: https://orcid.org/0000-0003-3510-7134)
- Mehdi Rezaie (ORCID: https://orcid.org/0000-0001-5589-7116)
- John Moustakas (ORCID: https://orcid.org/0000-0002-2733-4559)
- Claire Poppett (ORCID: https://orcid.org/0000-0003-0512-5489)
- Hu Zou (ORCID: https://orcid.org/0000-0002-6684-3997)
- T. Claybaugh (ORCID: https://orcid.org/0000-0002-5024-6987)
- P. Doel
- B. A. Weaver
- M. Schubnell
- Adam D. Myers
- Francisco Prada (ORCID: https://orcid.org/0000-0001-7145-8674)
- William Davison
Institutions
- Laboratoire de Physique Nucléaire et de Hautes Énergies (FR)
Publication Details
- Journal
- Publications of the Astronomical Society of the Pacific
- Published
- 2025-09-01
- DOI
- https://doi.org/10.1088/1538-3873/ae015d
- Primary Topic
- Gamma-ray bursts and supernovae
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Science Foundation
- U.S. Department of Energy
- Gordon and Betty Moore Foundation
- Ministerio de Ciencia e Innovación
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives
- Office of Science
- Science and Technology Facilities Council
- Division of Astronomical Sciences