TY - JOUR
T1 - The Final Season Reimagined
T2 - 30 Tidal Disruption Events from the ZTF-I Survey
AU - Hammerstein, Erica
AU - van Velzen, Sjoert
AU - Gezari, Suvi
AU - Cenko, S. Bradley
AU - Yao, Yuhan
AU - Ward, Charlotte
AU - Frederick, Sara
AU - Villanueva, Natalia
AU - Somalwar, Jean J.
AU - Graham, Matthew J.
AU - Kulkarni, Shrinivas R.
AU - Stern, Daniel
AU - Andreoni, Igor
AU - Bellm, Eric C.
AU - Dekany, Richard
AU - Dhawan, Suhail
AU - Drake, Andrew J.
AU - Fremling, Christoffer
AU - Gatkine, Pradip
AU - Groom, Steven L.
AU - Ho, Anna Y. Q.
AU - Kasliwal, Mansi M.
AU - Karambelkar, Viraj
AU - Kool, Erik C.
AU - Masci, Frank J.
AU - Medford, Michael S.
AU - Perley, Daniel A.
AU - Purdum, Josiah
AU - van Roestel, Jan
AU - Sharma, Yashvi
AU - Sollerman, Jesper
AU - Taggart, Kirsty
AU - Yan, Lin
N1 - Copyright:
© 2022. The Author(s).
PY - 2023/1/1
Y1 - 2023/1/1
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/85147153370
U2 - 10.3847/1538-4357/aca283
DO - 10.3847/1538-4357/aca283
M3 - Article
AN - SCOPUS:85147153370
SN - 0004-637X
VL - 942
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 1
M1 - 9
ER -