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

Home

All issues

Volume 505 / No 3 (October III 2009)

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

Full HTML

Free Access

Table F.1:

Near-infrared photometry from the UKIDSS GCS DR4 compared to 2MASS for variable sources (with 99.5% confidence level).
IAU Name^a	J	H	K	$J_{\rm 2MASS}$	$H_{\rm 2MASS}$	$K_{\rm 2MASS}$	diff J	diff H	diff K	Comments
	mag	mag	mag	mag	mag	mag	mag	mag	mag
UGCS J053753.98-024954.5	14.076	12.786	11.960	14.520	13.250	12.455	-0.444	-0.464	-0.495	M1129222^b
UGCS J053820.50-023408.9	13.651	12.591	11.931	12.652	11.918	11.648	0.999	0.673	0.283	M380287^c
UGCS J053834.46-025351.5	15.292	14.262	12.973	15.535	14.043	12.651	-0.243	0.219	0.322	M1082188^d
UGCS J053849.29-022357.6	14.536	14.115	13.524	14.362	13.699	13.197	0.174	0.416	0.327	M726005^e
UGCS J053904.59-024149.2	13.746	13.147	12.389	13.962	12.910	12.224	-0.216	0.237	0.165	M458140^f
UGCS J053838.59-030220.1	13.913	13.187	12.660	13.711	12.962	12.566	0.202	0.225	0.094	M1583183^d
UGCS J053855.42-024120.9	15.336	14.615	13.979	15.622	14.842	13.968	-0.286	-0.227	0.011	M358154^g
UGCS J053825.43-024241.2	14.793	14.334	13.729	14.877	14.157	13.572	-0.084	0.177	0.157	M495216^h
UGCS J053823.34-022534.6	13.802	13.115	12.583	13.685	12.928	12.424	0.117	0.187	0.159	M703333^g
UGCS J053838.12-023202.6	14.808	14.270	13.449	14.800	13.771	13.197	0.008	0.499	0.252	M258337^g

Note: the top part of the table lists sources showing variability in ${\it JHK}$ whereas the bottom part lists objects variable in two bands only. ^a IAU designations include J2000 (RA, dec.) coordinates from UKIDSS GCS DR4. ^b Weak H $\alpha$ detection reported by Weaver & Babcock (2004). ^c M4 with detection of lithium and H $\alpha$ equivalent width of 28Å (Zapatero Osorio et al. 2002b). ^d M1082188 and M1583183 were reported for the first time by Caballero (2008c) as photometric member candidates. ^e M5 with lithium, H $\alpha$ emission and disk (Kenyon et al. 2005); no Pa $\beta$ /Pa $\gamma$ but HeI detected (Gatti et al. 2008). Faint companion detected on the GCS images. ^f M2 with disk, X-ray emission, HeI, lithium but no Pa $\beta$ /Pa $\gamma$ (Gatti et al. 2008; Sacco et al. 2008). Faint companion detected on the GCS images. ^g Presence of disk reported by Hernández et al. (2007) and Caballero (2008c). ^h M6, H $\alpha$ emission and presence of disk. Reported to be variable by Caballero et al. (2004) with detailed discussion in Caballero et al. (2006b).

Source LaTeX | All tables | In the text

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.