A census of very-low-mass stars and brown dwarfs in the σ Orionis cluster

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Volume 505 / No 3 (October III 2009)

A&A, 505 3 (2009) 1115-1127

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Table A.1:

Near-infrared photometry and proper motions for five sources rejected as proper motion members and three potential binary previously unresolved on the 2MASS images.
IAU Names	Z	Y	J	H	K	$\mu_{\alpha}\cos{\delta}$	$\mu_{\delta}$	Comments
	mag	mag	mag	mag	mag	mas/yr	mas/yr
UGCS J053703.74-024150.0	14.943	14.453	13.894	13.329	13.038	-3.7	-36.5	PM NM
UGCS J053855.48-024129.6	12.922	12.606	12.139	11.705	11.342	91.1	13.1	PM NM
UGCS J053856.65-025702.3	12.801	12.531	12.062	11.723	11.309	33.8	-14.9	PM NM
UGCS J053907.60-022905.6	16.201	15.553	14.874	14.299	13.928	43.3	-7.0	PM NM
UGCS J054019.78-022956.0	13.285	12.947	12.453	11.945	11.599	39.5	-23.4	PM NM
UGCS J053847.90-023719.4	13.148	12.771	12.205	11.449	10.908	-28.8	-26.3	Binary?
UGCS J053848.03-023718.5	13.485	13.152	12.673	11.997	11.736	242.7	107.6	Binary?
UGCS J053947.30-022618.3	13.493	13.113	12.605	11.969	11.718	-249.6	-291.6	Binary?

^a IAU (International Astronomical Union) designations include J2000 (RA, dec.) coordinates from UKIDSS GCS DR4 (see http://www.ukidss.org/archive/archive.html for the UKIDSS nomenclature).

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