Stars and brown dwarfs in the σ Orionis cluster - IV. IDS/INT and OSIRIS/GTC spectroscopy and Gaia DR2 astrometry

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Volume 629 (September 2019)

A&A, 629 (2019) A114

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Table A.2.

Observations of targets towards σ Orionis with OSIRIS/GTC.

Mayrit	Alternative	α	δ	μ_αcosδ	μ_δ	ϖ	Date of	t_exp
	name	(J2000)	(J2000)	[mas a⁻¹]	[mas a⁻¹]	[mas]	observation	[s]
1329304	Haro 5-5	05 37 30.95	–02 23 42.8	1.765 ± 0.082	–1.16 ± 0.079	2.731 ± 0.041	13 Nov. 2012	2 × 200
1298302 ^(d)^(e)	[SWW2004] 137	05 37 31.54	–02 24 27.0	–3.393 ± 2.085	–1.398 ± 2.115	...	04 Mar. 2012	1 × 600
1129222	[WB2004] 10	05 37 53.98	–02 49 54.5	1.77 ± 0.25	–1.41 ± 0.21	2.53 ± 0.13	27 Dec. 2012	2 × 250
783254	2E 1455	05 37 54.40	–02 39 29.8	1.64 ± 0.12	–0.42 ± 0.10	2.590 ± 0.064	04 Mar. 2012	3 × 30
...	2E 1456	05 37 56.31	–02 45 13.2	0.8 ± 1.0	1.1 ± 1.1	–0.67 ± 0.59	17 Mar. 2012	1 × 1200
873229AB	Haro 5-7	05 38 01.08	–02 45 38.0	1.73 ± 0.57	–0.94 ± 0.52	4.23 ± 0.40	13 Nov. 2012	2 × 200
662301	Kiso A-0904 67	05 38 06.75	–02 30 22.7	1.035 ± 0.074	–0.383 ± 0.074	2.354 ± 0.042	04 Mar. 2012	2 × 300
1073209	[SWW2004] 52	05 38 09.95	–02 51 37.8	–0.23 ± 0.86	–0.08 ± 0.75	–0.73 ± 0.51	22 Dec. 2012	4 × 150
757219	Haro 5-8	05 38 13.15	–02 45 51.1	1.199 ± 0.072	–1.175 ± 0.065	2.518 ± 0.044	15 Nov. 2012	2 × 300
329261AB	[SWW2004] 207	05 38 23.08	–02 36 49.4	1.42 ± 0.25	–1.88 ± 0.21	1.92 ± 0.16	26 Dec. 2012	2 × 250

Notes.

^(a)

The full alternative names of Mayrit 1316178, 897077, 1045067, and 1196092 are preceded by [BMZ2001].

^(b)

Mayrit 180277 was also observed on 06 Mar. 2012 at an airmass of 1.25 for 900 s with the volume-phase holographic grating R2500V (R ∼ 1400, Δλ ∼ 4400–6000 Å).

^(c)

2E 1456 is a galaxy previously thought to be a star. We did not account for it in the analysis.

^(d)

Mayrit 1298302 was not tabulated by Gaia DR2 and its equatorial coordinates are from 2MASS.

^(e)

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

^(f)

Proper motions from Zacharias et al. (2005) (UCAC4). The full table is available at the CDS.

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