Searching for Supernovae in HETDEX Data Release 3

József Vinkó; Benjamin P. Thomas; J. Craig Wheeler; Anna Y. Q. Ho; Erin Mentuch Cooper; Karl Gebhardt; Robin Ciardullo; Daniel J. Farrow; Gary J. Hill; Zoltán Jäger; Wolfram Kollatschny; Chenxu Liu; Enikő Regős; Krisztián Sárneczky

doi:10.3847/1538-4357/acbfa8

The Astrophysical Journal (Jan 2023)

Searching for Supernovae in HETDEX Data Release 3

József Vinkó,
Benjamin P. Thomas,
J. Craig Wheeler,
Anna Y. Q. Ho,
Erin Mentuch Cooper,
Karl Gebhardt,
Robin Ciardullo,
Daniel J. Farrow,
Gary J. Hill,
Zoltán Jäger,
Wolfram Kollatschny,
Chenxu Liu,
Enikő Regős,
Krisztián Sárneczky

Affiliations

József Vinkó: ORCiD; Department of Astronomy, University of Texas at Austin , 2515 Speedway, Stop C1400 Austin, Texas 78712-1205, USA ; [email protected]; Konkoly Observatory , CSFK, Konkoly-Thege M. út 15-17, Budapest, 1121, Hungary; ELTE Eötvös Loránd University , Institute of Physics, Pázmány Péter sétány 1/A, Budapest, 1117 Hungary; Department of Experimental Physics, University of Szeged , Dóm tér 9, Szeged, 6720, Hungary
Benjamin P. Thomas: ORCiD; Department of Astronomy, University of Texas at Austin , 2515 Speedway, Stop C1400 Austin, Texas 78712-1205, USA ; [email protected]
J. Craig Wheeler: ORCiD; Department of Astronomy, University of Texas at Austin , 2515 Speedway, Stop C1400 Austin, Texas 78712-1205, USA ; [email protected]
Anna Y. Q. Ho: ORCiD; Department of Astronomy, Cornell University , Ithaca, NY 14853, USA
Erin Mentuch Cooper: ORCiD; Department of Astronomy, University of Texas at Austin , 2515 Speedway, Stop C1400 Austin, Texas 78712-1205, USA ; [email protected]
Karl Gebhardt: ORCiD; Department of Astronomy, University of Texas at Austin , 2515 Speedway, Stop C1400 Austin, Texas 78712-1205, USA ; [email protected]
Robin Ciardullo: ORCiD; Department of Astronomy & Astrophysics, The Pennsylvania State University , University Park, PA 16802, USA; Institute for Gravitation and the Cosmos, The Pennsylvania State University , University Park, PA 16802, USA
Daniel J. Farrow: ORCiD; University Observatory , Fakultät für Physik, Ludwig-Maximilians University Munich, Scheinerstrasse 1, D-81679 Munich, Germany; Max-Planck Institut für Extraterrestrische Physik , Giessenbachstrasse 1, D-85748 Garching, Germany
Gary J. Hill: ORCiD; Department of Astronomy, University of Texas at Austin , 2515 Speedway, Stop C1400 Austin, Texas 78712-1205, USA ; [email protected]; McDonald Observatory, The University of Texas at Austin , 2515 Speedway, Stop 1402, Austin, TX 78712, USA
Zoltán Jäger: Baja Observatory, University of Szeged , Szegedi út POB 766, Baja, 7900, Hungary; ELTE Eötvös Loránd University , Gothard Astrophysical Observatory, Szent Imre h.u. 112, Szombathely, 9700, Hungary; MTA-ELTE Exoplanet Research Group , Szent Imre h.u. 112, Szombathely, 9700, Hungary
Wolfram Kollatschny: ORCiD; Institut für Astrophysik, Universität Göttingen , Friedrich-Hund Platz 1, D-37077 Göttingen, Germany
Chenxu Liu: ORCiD; Department of Astronomy, University of Texas at Austin , 2515 Speedway, Stop C1400 Austin, Texas 78712-1205, USA ; [email protected]; South-Western Institute for Astronomy Research, Yunnan University , Kunming, Yunnan, 650500, People's Republic of China
Enikő Regős: ORCiD; Konkoly Observatory , CSFK, Konkoly-Thege M. út 15-17, Budapest, 1121, Hungary
Krisztián Sárneczky: ORCiD; Konkoly Observatory , CSFK, Konkoly-Thege M. út 15-17, Budapest, 1121, Hungary

DOI: https://doi.org/10.3847/1538-4357/acbfa8
Journal volume & issue: Vol. 946, no. 1
p. 31

Abstract

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We have extracted 636 spectra taken at the positions of 583 transient sources from the third data release of the Hobby–Eberly Telescope Dark Energy eXperiment (HETDEX). The transients were discovered by the Zwicky Transient Facility (ZTF) during 2018–2022. The HETDEX spectra provide a potential means to obtain classifications for a large number of objects found by photometric surveys for free. We attempt to explore and classify the spectra by utilizing several template-matching techniques. We have identified two transient sources, ZTF20aatpoos = AT 2020fiz and ZTF19abdkelq, as supernova (SN) candidates. We classify AT 2020fiz as a Type IIP SN observed ∼10 days after explosion, and we propose ZTF19abdkelq as a likely Type Ia SN caught ∼40 days after maximum light. ZTF photometry of these two sources are consistent with their classifications as SNe. Beside these two objects, we have confirmed several ZTF transients as variable active galactic nuclei based on their spectral appearance, and determined the host galaxy types of several other ZTF transients.

Published in The Astrophysical Journal

ISSN: 1538-4357 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Science: Astronomy: Astrophysics
Website: https://iopscience.iop.org/journal/0004-637X

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