MOCCA-SURVEY Database -- I. Tidal disruption events of white dwarfs in globular clusters and young massive clusters

Understand

We exploit more than 1000 star cluster Monte Carlo models from the MOCCA-SURVEY Database I, to infer the local rate density of white dwarf (WD) tidal disruption events (TDEs) in globular clusters (GCs) and young massive clusters (YMCs).

• We suggest that the WD TDE rate for GCs and YMCs in the local universe is $\sim 90$-$500~{\rm yr}^{-1}~{\rm Gpc}^{-3}$, with 90 % of WD TDEs occurring in GCs.
• The total WD TDE rate density is $\sim 9$-$50$ times larger than estimated before.
• Our results show that thermonuclear explosions induced by WD TDEs can be observed at a rate of $\sim 100$-$550~{\rm yr}^{-1}$ by the next generation optical surveys, such as the Legacy Survey of Space & Time by the Vera C.