Open Access

Table A.1.

AD Leo observations using ESPaDOnS and SPIRou.

Date UT HJD B ncyc texp S/N σLSD Instrument
[hh:mm:ss] [−2450000] [G] [s] [10−5Ic]
October 16 14:43:27 9869.1106 −157.5 ± 8.5 −11.23 4x160 194 13.97 ESPaDOnS
October 17 15:41:15 9870.1508 −104.9 ± 9.0 −10.32 4x160 184 14.86 ESPaDOnS
October 18 15:20:30 9871.1361 −139.7 ± 8.3 −10.76 4x160 193 16.06 ESPaDOnS
October 19 15:25:33 9872.1400 −134.3 ± 11.4 −9.87 4x160 155 19.62 ESPaDOnS
November 10 15:42:33 9894.1534 −157.4 ± 9.6 0.00 4x61 415 8.92 SPIRou
November 11 15:37:26 9895.1500 −148.1 ± 9.8 0.45 4x61 396 8.20 SPIRou
November 12 15:49:30 9896.1584 −121.6 ± 9.4 0.90 4x61 477 9.78 SPIRou
November 13 15:34:01 9897.1478 −105.5 ± 9.5 1.34 4x61 408 7.35 SPIRou
November 15 15:31:52 9899.1465 −109.9 ± 9.8 2.24 4x50 397 8.71 SPIRou
November 16 15:38:17 9900.1510 −131.2 ± 11.8 2.69 4x55 403 8.71 SPIRou
November 17 15:37:24 9901.1505 −115.1 ± 14.7 3.14 4x61 340 10.47 SPIRou
November 18 15:44:38 9902.1556 −138.4 ± 9.2 3.59 4x61 322 9.08 SPIRou
November 19 15:35:55 9903.1497 −164.6 ± 10.1 4.03 4x61 349 10.51 SPIRou
November 21 15:26:32 9905.1434 −131.7 ± 11.4 4.93 4x61 396 8.83 SPIRou
November 22 14:45:53 9906.1152 −115.3 ± 9.3 5.36 4x50 399 8.00 SPIRou

2023

January 6 15:37:03 9951.1548 −115.8 ± 9.6 25.56 4x61 261 13.76 SPIRou
January 6 16:09:08 9951.1771 −111.5 ± 9.1 25.57 4x61 430 8.16 SPIRou
January 8 15:14:43 9953.1394 −148.6 ± 11.5 26.45 4x61 379 8.98 SPIRou
January 9 15:33:14 9954.1523 −100.4 ± 10.7 26.91 4x61 373 9.08 SPIRou
January 10 15:44:13 9955.1557 −129.7 ± 9.6 27.36 4x55 395 8.31 SPIRou
January 11 15:39:13 9956.1566 −94.9 ± 9.9 27.80 4x61 431 7.68 SPIRou
January 12 15:13:14 9957.1386 −159.6 ± 9.7 28.24 4x61 389 8.51 SPIRou
January 13 14:51:03 9958.1233 −135.4 ± 10.0 28.69 4x61 419 7.42 SPIRou

Notes. The columns are as follows: (1 and 2) date and universal time of the observations, (3) heliocentric Julian date of the observation, (4) longitudinal magnetic field strength, (5) rotational cycle of the observations calculated using Eq. 1, (6) exposure time of a polarimetric sequence, (7) S/N at 1650 nm per 2.3 km/s velocity bin and per polarimetric sequence for SPIRou and at 647 nm per 2.6 km/s velocity bin and per polarimetric sequence for ESPaDOnS, (8) RMS noise level of Stokes V signal (per 1.8 km/s velocity bin) in units of unpolarised continuum, and (9) the instrument used.

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