Статья

The Final Season Reimagined: 30 Tidal Disruption Events from the ZTF-I Survey

Erica HammersteinCenter for Research and Exploration in Space Science and Technology, NASA/GSFC, Greenbelt, MD 20771, USASjoert van VelzenLeiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden, The NetherlandsSuvi GezariSpace Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USAS. B. CenkoJoint Space-Science Institute, University of Maryland, College Park, MD 20742, USAYuhan YaoDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USACharlotte WardDepartment of Astrophysical Sciences, Princeton University, Princeton, NJ 08544, USASara FrederickDepartment of Physics and Astronomy, Vanderbilt University, VU Station 1807, Nashville, TN 37235, USANatalia C. VillanuevaDepartment of Astronomy, Harvard University, Cambridge, MA 02138, USAJean J. SomalwarDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USAM. J. GrahamDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USAS. R. KulkarniDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USADaniel SternJet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USAIgor AndreoniAstrophysics Science Division, NASA Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USAE. BellmDIRAC Institute, Department of Astronomy, University of Washington, 3910 15th Avenue NE, Seattle, WA 98195, USARichard DekanyCaltech Optical Observatories, California Institute of Technology, Pasadena, CA 91125, USASuhail DhawanInstitute of Astronomy and Kavli Institute for Cosmology, University of Cambridge, Madingley Road, Cambridge CB3 0HA, UKA. J. DrakeDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USAC. FremlingDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USAPradip GatkineDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USASteven L. GroomIPAC, California Institute of Technology, 1200 E. California Boulevard, Pasadena, CA 91125, USAA. Y. Q. HoDepartment of Astronomy, Cornell University, Ithaca, NY 14853, USAM. M. KasliwalDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USAViraj KarambelkarDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USAErik C. KoolThe Oskar Klein Centre, Department of Astronomy, Stockholm University, AlbaNova, SE-10691, Stockholm, SwedenFrank J. MasciIPAC, California Institute of Technology, 1200 E. California Boulevard, Pasadena, CA 91125, USAMichael S. MedfordLawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USAD. A. PerleyAstrophysics Research Institute, Liverpool John Moores University, IC2, Liverpool Science Park, 146 Brownlow Hill, Liverpool L3 5RF, UKJosiah PurdumCaltech Optical Observatories, California Institute of Technology, Pasadena, CA 91125, USAJan van RoestelDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USAY. SharmaDivision of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USAJ. SollermanThe Oskar Klein Centre, Department of Astronomy, Stockholm University, AlbaNova, SE-10691, Stockholm, SwedenK. TaggartDepartment of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064, USALin YanCaltech Optical Observatories, California Institute of Technology, Pasadena, CA 91125, USA

2022en

ABI

Аннотация

Abstract Tidal disruption events (TDEs) offer a unique way to study dormant black holes. While the number of observed TDEs has grown thanks to the emergence of wide-field surveys in the past few decades, questions regarding the nature of the observed optical, UV, and X-ray emission remain. We present a uniformly selected sample of 30 spectroscopically classified TDEs from the Zwicky Transient Facility Phase I survey operations with follow-up Swift UV and X-ray observations. Through our investigation into correlations between light-curve properties, we recover a shallow positive correlation between the peak bolometric luminosity and decay timescales. We introduce a new spectroscopic class of TDE, TDE-featureless, which are characterized by featureless optical spectra. The new TDE-featureless class shows larger peak bolometric luminosities, peak blackbody temperatures, and peak blackbody radii. We examine the differences between the X-ray bright and X-ray faint populations of TDEs in this sample, finding that X-ray bright TDEs show higher peak blackbody luminosities than the X-ray faint subsample. This sample of optically selected TDEs is the largest sample of TDEs from a single survey yet, and the systematic discovery, classification, and follow-up of this sample allows for robust characterization of TDE properties, an important stepping stone looking forward toward the Rubin era.

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Идентификаторы

DOI: 10.3847/1538-4357/aca283

Цитирования и источники

Цитирований: 3Использованных источников: 0

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