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A Formation Crisis of Repeating Partial Tidal Disruption Events

  • Authors: Zhen Pan, Dong Lai

Zhen Pan and Dong Lai 2026 The Astrophysical Journal Letters 1002 .

  • Provider: AAS Journals

Caption: Figure 3.

Average rpTDE fraction in the loss-cone channel is insensitive to the stellar type or the exact loss-cone boundary βrpTDE. The four “diagonal” lines are obtained from Equations (18) and (19). In addition, dynamical tides may drive stars from a larger “initial” orbital period Tobt,i to a shorter orbital period Tobt, where the stars repeatedly get disrupted and are observed. As a result, dynamical tides increase the rate of observable rpTDEs by a factor of a few (see Section 2.5). Here the thick blue line is obtained from the light blue line by assuming Tobt = Tobt,i/10.

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