Infrared observations reveal the reprocessing envelope in the tidal disruption event AT 2019azh

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Table 2.

Selected models for the SEDs of AT 2019azh with IR data.

Phase	Dust temperature	Mass	Reduced-χ²
(d)	K	M_⊙
-3	2169 $_{- 51}^{+ 24}$ $Mathematical equation: $ ^{+24}_{-51} $$	5.1 $_{- 0.6}^{+ 0.5} \times 10^{- 6}$ $Mathematical equation: $ ^{+0.5}_{-0.6}\times10^{-6} $$	12
7	939 $_{- 67}^{+ 73}$ $Mathematical equation: $ ^{+73}_{-67} $$	2.1 $_{- 0.8}^{+ 0.6} \times 10^{- 4}$ $Mathematical equation: $ ^{+0.6}_{-0.8}\times10^{-4} $$	14
7	2124 $_{- 145}^{+ 57}$ $Mathematical equation: $ ^{+57}_{-145} $$	5.2 $_{- 0.8}^{+ 1.6} \times 10^{- 6}$ $Mathematical equation: $ ^{+1.6}_{-0.8}\times10^{-6} $$	26
17	2130 $_{- 76}^{+ 49}$ $Mathematical equation: $ ^{+49}_{-76} $$	7.9 $_{- 1}^{+ 0.7} \times 10^{- 6}$ $Mathematical equation: $ ^{+0.7}_{-1}\times10^{-6} $$	5 or 93
38	1937 $_{- 195}^{+ 177}$ $Mathematical equation: $ ^{+177}_{-195} $$	8 $_{- 5}^{+ 3} \times 10^{- 6}$ $Mathematical equation: $ ^{+3}_{-5}\times10^{-6} $$	3 or 60
215	668 $_{- 20}^{+ 21}$ $Mathematical equation: $ ^{+21}_{-20} $$	3.4 $_{- 0.9}^{+ 0.8} \times 10^{- 4}$ $Mathematical equation: $ ^{+0.8}_{-0.9}\times10^{-4} $$	2
239	759 $_{- 44}^{+ 51}$ $Mathematical equation: $ ^{+51}_{-44} $$	1.5 $_{- 0.9}^{+ 0.6} \times 10^{- 4}$ $Mathematical equation: $ ^{+0.6}_{-0.9}\times10^{-4} $$	3

Phase	L_inj	Ṁ_acc	ρ_scale	θ	Reduced-χ²
(d)	L₄₅	Ṁ_Edd		°

-3	16	24	2	60	25
-3	8	24	2	60	14
7	16	24	2	60	16
17	12	24	1.5	60	23
38	8	24	1	60	29

Notes. The upper table lists the parameters and reduced χ-squared for the dust models, while the lower table lists these values for the reprocessing models. Where two values are listed for the reduced χ-squared, the former indicates the value without the ori bands that were excluded from the blackbody fitting, while the latter indicates the value with all the data included.

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