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Table A.1.

Observations of targets towards σ Orionis with IDS/INT.

Mayrit Alternative α δ μαcosδ μδ ϖ Date of texp
name (J2000) (J2000) [mas a−1] [mas a−1] [mas] observation [s]
... TYC 4770-1018-1 05 36 57.15 –02 25 39.9 0.910 ± 0.086 –0.437 ± 0.080 0.554 ± 0.045 23 Feb. 2007 180
1456284 TYC 4770-1261-1 05 37 10.49 –02 30 07.1 0.748 ± 0.083 –9.226 ± 0.078 3.491 ± 0.040 23 Feb. 2007 240
27 Feb. 2007 450
1415279AB OriNTT 429 05 37 11.62 –02 32 08.8 0.639 ± 0.064 –0.773 ± 0.065 2.725 ± 0.036 24 Feb. 2007 300
27 Feb. 2007 360
1374283 SO211394 05 37 15.37 –02 30 53.4 –0.341 ± 0.092 –1.029 ± 0.091 2.351 ± 0.048 23 Feb. 2007 300
... HD 294270 05 37 18.82 –02 31 36.4 16.324 ± 0.096 –28.327 ± 0.094 2.808 ± 0.042 24 Feb. 2007 120
... HD 294276 05 37 20.68 –02 49 33.1 6.823 ± 0.058 –65.963 ± 0.062 7.160 ± 0.039 22 Feb. 2007 120
(1650224) 2M J05372885−0255555 05 37 28.85 –02 55 55.6 0.207 ± 0.055 1.337 ± 0.058 0.485 ± 0.035 23 Feb. 2007 180
... TYC 4770-1468-1 05 37 29.88 –02 43 45.7 –2.705 ± 0.065 –4.911 ± 0.063 0.709 ± 0.038 23 Feb. 2007 180
1227243 HD 294275 05 37 31.87 –02 45 18.5 –2.188 ± 0.084 –3.126 ± 0.085 2.849 ± 0.052 24 Feb. 2007 120

Notes.

(a)

2MASS J05381494–0219532 and 2MASS J05384652–0235479 had poor quality spectra and, therefore, were discarded from the analysis.

(b)

Mayrit 1500066 was not tabulated by Gaia DR2 and its equatorial coordinates are from 2MASS.

(c)

We took three spectra of Mayrit 1245057AB: one of component A, one of component B, and of the two of them inside the slit in parallactic angle.

(d)

Proper motions from Zacharias et al. (2005) (UCAC4).

(e)

Proper motions from Altmann et al. (2017) (HSOY).

(f)

We took two spectra of Mayrit 1626148AB: one of component A and one of component B. The full table is available at the CDS.

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