Rate of repeating tidal disruption events with a 5–19 years interval

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Table 2.

Light-curve model parameters for the two rTDEs.

IAU ID	t_peak	lgL_V,peak	t_1/2, rise	t_{1/2, decline} (f)	t_{1/2, decline}(p)	lgT_bb	lgR_bb	lgL_bb
	(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)
AT 2019azh.I	53626 $_{- 11}^{+ 12}$ $Mathematical equation: $ ^{+12}_{-11} $$	43.27 $_{- 0.29}^{+ 0.36}$ $Mathematical equation: $ ^{+0.36}_{-0.29} $$	18.5 $_{- 10.0}^{+ 20.3}$ $Mathematical equation: $ ^{+20.3}_{-10.0} $$	10.2 $_{- 3.7}^{+ 5.1}$ $Mathematical equation: $ ^{+5.1}_{-3.7} $$	7.0 $_{- 2.5}^{+ 3.5}$ $Mathematical equation: $ ^{+3.5}_{-2.5} $$	–	–	–
AT 2019azh.II	58561±1	43.14	24.7 $_{- 1.0}^{+ 1.3}$ $Mathematical equation: $ ^{+1.3}_{-1.0} $$	44.1 $_{- 0.9}^{+ 1.1}$ $Mathematical equation: $ ^{+1.1}_{-0.9} $$	–	4.46	14.80	44.31
AT 2024pvu.I	54019±6	43.25±0.05	27.8 $_{- 8.8}^{+ 13.9}$ $Mathematical equation: $ ^{+13.9}_{-8.8} $$	33.6 $_{- 7.8}^{+ 9.6}$ $Mathematical equation: $ ^{+9.6}_{-7.8} $$	23.5 $_{- 5.6}^{+ 6.7}$ $Mathematical equation: $ ^{+6.7}_{-5.6} $$	4.29 ± 0.01	15.00 ± 0.02	44.03 ± 0.05
AT 2024pvu.II	60552±1	43.30±0.01	24.0 $_{- 0.4}^{+ 0.4}$ $Mathematical equation: $ ^{+0.4}_{-0.4} $$	14.35 $_{- 0.3}^{+ 0.3}$ $Mathematical equation: $ ^{+0.3}_{-0.3} $$	–	4.33 ± 0.01	14.99 ± 0.01	44.14 ± 0.02
Yao23.ZTF-TDEs	–	42.33–44.55	6.4–51.8	5.2–86.5	–	3.96–4.58	14.45–15.56	42.99–45.44

Notes. (1): Peak time. (2): Peak V-band luminosity. (3): Rise timescale, expressed as t_1/2, rise = 1.177σ_rise. (4),(5): Decline timescales assuming full TDE (p = −5/3) and partial TDE (p = −9/4) models, expressed as t_{1/2, decline} = (2^−1/p − 1)t₀. (6)-(8): Blackbody temperature, radius, and luminosity at the peak time. For the two CRTS flares, we list the best-fitting GP model parameters, while the blackbody parameters for AT 2024pvu.I are from SED fitting results using the GALEX UV data. For AT 2024pvu.II, we list the best-fitting parameters from the model of van Velzen et al. (2021) and the parameters for AT 2019azh.II and ZTF TDEs are taken from Yao23. The lgL_V,peak for all ZTF TDEs are inferred from the peak bolometric luminosity and the temperature at the peak time.

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