X-ray variability of the triplet star system LTT1445 and evaporation history of the planets around its A component

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Volume 687 (July 2024)

A&A, 687 (2024) A237

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Table 7

X-ray properties for LTT 1445A across observations.

Date	Observatory	Activity	Duration (ks)	f_x (10⁻¹³ erg cm⁻² s⁻¹)	log L_X	kT_peak (keV)	Ref.
2021-06-05	Chandra	Flare	6.66	3.61 ± 0.27	27.31 ± 0.10	1.02 ± 0.10	Brown 2022
2021-06-05	Chandra	Elevated	11.6	0.66 ± 0.10	26.57 ± 0.07	0.59 ± 0.29	Brown 2022
2021-06-05	Chandra	Quiescent	12.2	0.066 ± 0.033	${25.57}_{- 0.30}^{+ 0.18}$ $\[25.57_{-0.30}^{+0.18}\]$	1.02 ± 0.10	Brown 2022
2022-10-10	Chandra	Quiescent	12.0	${0.259}_{- 0.08}^{+ 0.12}$ $\[0.259_{-0.08}^{+0.12}\]$	26.16 ± 0.24	0.80 ± 0.94	This work
2022-10-12	Chandra	Quiescent	12.0	${0.19}_{- 0.07}^{+ 0.15}$ $\[0.19_{-0.07}^{+0.15}\]$	26.0 ± 0.4	0.68 ± 0.87	This work
2022-11-24	Chandra	Quiescent	30.0	${0.18}_{- 0.05}^{+ 0.05}$ $\[0.18_{-0.05}^{+0.05}\]$	26.03 ± 0.13	0.94 ± 0.76	This work

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