The Mini-SiTian Array: Prospects of Searching for Tidal Disruption Events

TL;DR

This paper evaluates the potential of the Mini-SiTian array to detect tidal disruption events, predicting about 204 discoveries annually, which could significantly advance TDE research.

Contribution

It presents a detailed simulation-based assessment of TDE detectability with the Mini-SiTian array, including survey strategy and expected discovery rates.

Findings

Approximately 0.53 TDEs detected per year in the simulated setup.

Expected to discover around 204 TDEs annually with the SiTian project.

Detection is feasible with 300-second exposures every 3 days in g and r bands.

Abstract

We assess the detectability of tidal disruption events (TDEs) using mock observations from the Mini-SiTian array. We select 100 host galaxy samples from a simulated galaxy catalog based on specific criteria such as redshift, BH mass, and event rate. Taking into account the site conditions and survey strategy, we simulate observations over a 440 deg$^2$ field. The results indicate that $0.53\pm 0.73$ TDEs can be detected per year when observing in both $g$ and $r$ bands with 300-second exposures every 3 days. Applying this method to the SiTian project, we expect to discover approximately 204 TDEs annually, heralding a new era in TDE science.