An Energy Inventory of Tidal Disruption Events
Brenna Mockler, Enrico Ramirez-Ruiz

TL;DR
This study analyzes the total energy, emission timescales, and efficiencies of tidal disruption events (TDEs) using MOSFiT, revealing higher energy estimates and efficiencies similar to active galactic nuclei, but with uncertainties in emission mechanisms.
Contribution
It introduces a method to calculate the integrated energy and efficiencies of TDEs, providing new insights into their emission mechanisms and energy release over time.
Findings
Total energy estimates are higher than previous studies.
Many TDEs have efficiencies similar to active galactic nuclei.
Systematic uncertainties hinder definitive conclusions about emission mechanisms.
Abstract
Tidal disruption events (TDEs) offer a unique opportunity to study a single super-massive black hole (SMBH) under feeding conditions that change over timescales of days or months. However, the primary mechanism for generating luminosity during the flares remains debated. Despite the increasing number of observed TDEs, it is unclear whether most of the energy in the initial flare comes from accretion near the gravitational radius or from circularizing debris at larger distances from the SMBH. The energy dissipation efficiency increases with decreasing radii, therefore by measuring the total energy emitted and estimating the efficiency we can derive clues about the nature of the emission mechanism. Here we calculate the integrated energy, emission timescales, and average efficiencies for the TDEs using the Modular Open Source Fitter for Transients ({\tt MOSFiT}). Our calculations of the…
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