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The Final Season Reimagined: 30 Tidal Disruption Events from the ZTF-I Survey
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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 \textit{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 sub-sample. 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.
Forward citations
Cited by 4 Pith papers
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Uncertainty-aware Probabilistic Random Forest on 11 photometric light-curve features classifies TDEs without host data more stably than XGBoost and recovers 14 new candidates from ZTF.
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Tidal Disruption Events with the SKA
With its projected sensitivity, low-frequency coverage, and VLBI, the SKA would shift tidal disruption event radio studies from a handful of events to hundreds, enabling population-level inference on jets, black-hole ...
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