Open Access

Table A.1.

Chandra archival observations from which we determined LX with CIAO.

Star SpT distance [pc] Instrument Grating Exposure time [ks] Observation ID
GJ 65A/B M5/M6 2.7 HRC-S LETG 56.6 https://doi.org/10.25574/22876
GJ 54.1 M4 3.7 ACIS-S NONE 9.93 https://doi.org/10.25574/22291
GJ 628 M3 4.3 ACIS-S NONE 38.51 https://doi.org/10.25574/20163
GJ 166C M4.5 5.0 ACIS-S NONE 5 https://doi.org/10.25574/20163
GJ 169.1A M4 5.5 ACIS-S NONE 4.98 https://doi.org/10.25574/13643
GJ 644AB/ GJ 643E M3/ M3.5 6.2 ACIS-S NONE 9.04 https://doi.org/10.25574/615
GJ 1156 M4.5 6.5 ACIS-S NONE 19.81 https://doi.org/10.25574/27611
GJ 569A M1 9.9 ACIS-S NONE 24.86 https://doi.org/10.25574/4470

GJ 570A/ BC K4/ M1 5.9 ACIS-S NONE 39.63 https://doi.org/10.25574/8904
GJ 663A/B K1/K2 6.0 HRC-S LETG 77.37 https://doi.org/10.25574/4483
GJ 667A K3 6.8 ACIS-S NONE 18.2 https://doi.org/10.25574/17317
GJ 451 K1 9.3 ACIS-S NONE 32.79 https://doi.org/10.25574/9931
GJ 615 K3 13.6 ACIS-S NONE 32.5 https://doi.org/10.25574/7441

GJ 19 G2IV 7.5 ACIS-S NONE 4.91 https://doi.org/10.25574/12337
GJ 759 G5 14.9 HRC-I NONE 8.99 https://doi.org/10.25574/22309

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