2004BaltA..13..500P

Query : 2004BaltA..13..500P

2004BaltA..13..500P - Baltic Astronomy, 13, 500-504 (2004/August-0)

Young brown dwarfs in the Chamaeleon Cloud complex.

PERSI P. and GOMEZ M.

Abstract (from CDS):

We present the results of ISOCAM observations at 6.75 and 14.3 µm, and near-IR spectra of a selected sample of candidate young brown dwarfs and very low-mass young stellar objects in the Chamaeleon dark cloud complex. We confirm the object Cha Hα 1 (ISO-Cha I 95) as a bona fide young brown dwarf and identify four new young objects in Cha I (ISO-Cha I 138, 143, 235 and 250) with spectral types ≥ M6 and masses close to the hydrogen burning limit. Another new candidate young sub-stellar system has been detected in the core of the Cha II dark cloud (ISO-Cha II 13). All these sources show significant mid-IR excesses probably due to the presence of circumstellar disks.

Abstract Copyright: ∼

Journal keyword(s): stars: formation - stars: low-mass, brown dwarfs - infrared: stars

Simbad objects: 22

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Number of rows : 22
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ISO-ChaI 13 NIR 11 02 55.792 -77 24 30.41         18.09 ~ 6 0
2 [NC98] Cha HA 12 Or* 11 06 37.9647720216 -77 43 09.113892564     20.6   15.91 M6.5e 45 0
3 NAME Cha 1 MoC 11 06 48 -77 18.0           ~ 1266 1
4 [NC98] Cha HA 1 Or* 11 07 16.6710048312 -77 35 53.212777692   22.8 21.0   16.38 M7.5/8e 100 0
5 [NC98] Cha HA 9 Or* 11 07 18.5760916584 -77 32 51.561674700     23.1   17.57 M5.5e 61 0
6 [NC98] Cha HA 7 Or* 11 07 37.7410696536 -77 35 30.793352928   23.7 22.2   17.03 M8e 43 0
7 V* HK Cha Or* 11 07 42.3364909752 -77 33 59.394350844   21.9 19.8   15.26 M5.25e 93 0
8 [NC98] Cha HA 8 Or* 11 07 46.0912894776 -77 40 08.918309388   22.2 20.1   15.61 M5.75e 51 1
9 V* HL Cha Or* 11 07 52.2574621728 -77 36 57.037742172   21.5 19.51   15.07 M5.5e 59 0
10 ISO-ChaI 138 LM* 11 08 18.4691867664 -77 30 40.891618332         16.77 ~ 44 0
11 [NC98] Cha HA 4 Or* 11 08 18.9694304592 -77 39 17.131209948   20.5 18.52   14.50 M5.5e 46 0
12 ISO-ChaI 143 Or* 11 08 22.3647237024 -77 30 27.783619596         15.51 M5e 58 0
13 2MASS J11082404-7739299 Or* 11 08 24.0583968960 -77 39 30.056968764   22.6 21.6   17.10 ~ 36 0
14 [NC98] Cha HA 5 Or* 11 08 24.1193575992 -77 41 47.438803392   21.3 19.18   14.85 M5.5e 60 0
15 2MASS J11082927-7739198 LM* 11 08 29.2579779792 -77 39 19.777635504   21.9 19.9   17.59 M7.5 37 0
16 V* HQ Cha Or* 11 08 39.5017287912 -77 34 16.733892756   21.7 19.75   15.06 M5.75e 80 0
17 2MASS J11100785-7727480 Or* 11 10 07.8396430440 -77 27 48.063966876         17.79 M5.5 36 0
18 ISO-ChaI 250 LM* 11 10 36.4196358816 -77 22 13.088141364         16.52 M4.75 22 0
19 NAME Chamaeleon Region SFR 11 55 -78.0           ~ 887 0
20 IRAS 12340-7958 LP* 12 37 39.7408011816 -80 15 13.707391932   16.11 14.39 13.63 9.81 ~ 108 0
21 NAME Cha III MoC 12 37.8 -80 15           ~ 147 2
22 NAME Cha II MoC 12 54 -77.2           ~ 361 0

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