2005A&A...440..139L

Query : 2005A&A...440..139L

2005A&A...440..139L - Astronomy and Astrophysics, volume 440139-149 (2005/9-2)

Very low-mass members of the Lupus 3 cloud.

LOPEZ MARTI B., EISLOEFFEL J. and MUNDT R.

Abstract (from CDS):

We report on a multi-band survey for very low-mass stars and brown dwarfs in the Lupus 3 cloud with the Wide Field Imager (WFI) at the ESO/MPG 2.2m telescope on La Silla Observatory (Chile). Our multiband optical photometry is combined with available 2MASS JHK photometry to identify 19 new young stars and 3 brown dwarf candidates as probable members of this star forming region. Our objects are mostly clustered around the cloud core. Stars and brown dwarfs have similar levels of Hα emission, probably a signature of accretion. One object, a brown dwarf candidate, exhibits a near-infrared excess, which may indicate the presence of a disk, but its Hα emission cannot be confirmed due to its faintness in the optical passbands. We also find two visual pairs of probable Lupus 3 members that may be wide binaries.

Abstract Copyright: ∼

Journal keyword(s): stars: low-mass, brown dwarfs - stars: pre-main sequence - stars: formation - stars: luminosity function, mass function - stars: circumstellar matter

Nomenclature: Table 3: [LEM2005] Lup NNN, [LEM2005] Lup NNNs, N=23 among N>915.

Simbad objects: 38

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Number of rows : 38
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 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1453 0
2 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4971 0
3 M 42 HII 05 35 16.8 -05 23 15           ~ 4411 0
4 NGC 2264 OpC 06 40 53.7 +09 52 32           ~ 1876 0
5 NAME Cha 1 MoC 11 06 48 -77 18.0           ~ 1266 1
6 NAME Lupus Complex SFR 16 03 -38.1           ~ 851 0
7 2MASS J16064749-3916238 Y*? 16 06 47.4989349864 -39 16 23.784216024       16.64 14.62 ~ 6 0
8 2MASS J16070963-3841300 * 16 07 09.6188998008 -38 41 30.007085316           ~ 2 0
9 2MASS J16071400-3852375 Or* 16 07 14.0092760616 -38 52 37.554328056       18.84 16.49 ~ 10 0
10 2MASS J16072342-3905099 Y*O 16 07 23.4194689224 -39 05 09.926240460   17.95   18.25 17.54 ~ 5 0
11 2MASS J16073773-3921388 Or* 16 07 37.7327699304 -39 21 38.745260928   18.38 17.4 17.12 15.68 M5.5e 48 0
12 2MASS J16075888-3924347 TT* 16 07 58.8952865040 -39 24 34.774540992   17.34 17.8 16.58 14.74 M4.5 18 0
13 2MASS J16080017-3902595 Or* 16 08 00.1718615064 -39 02 59.504573976   16.94 17.01 16.72 14.31 M5.5e 53 0
14 SONYC Lup3-5 LM* 16 08 16.0404001440 -39 03 04.320708732   17.74 19.92 18.15 15.28 M7.5 36 0
15 SSTc2d J160828.1-391310 Or* 16 08 28.1226362485 -39 13 09.781567277   17.45   17.76 16.13 M6.5 33 0
16 V* V856 Sco Ae* 16 08 34.2870044544 -39 06 18.325711332 7.66 7.41 7.05 6.92   A9V_sh 405 0
17 V* V1027 Sco a2* 16 08 34.5616203192 -39 05 34.278268848   6.552 6.629 6.66   A0/3III 204 0
18 UCAC3 102-194847 Or* 16 08 35.7826940376 -39 03 47.933557092   16.88 15.49 15.02 13.09 M6 39 0
19 2MASS J16083733-3923109 Or* 16 08 37.3331402112 -39 23 10.926378348   20.1 19.1 20.70 18.44 M7.5e 28 0
20 2MASS J16084817-3909197 Or* 16 08 48.1774909152 -39 09 19.828771092   17.27 17.41 17.29 15.02 ~ 14 0
21 IRAS 16054-3857 Or* 16 08 49.3987083072 -39 05 39.447341844   16.76 17.71 15.89 14.24 M4.5 61 0
22 V* V1192 Sco Or* 16 08 51.4348063536 -39 05 30.460358652     21.9 18.97 18.18 M5 78 0
23 Sz 112 Or* 16 08 55.5289090032 -39 02 33.941081832   16.62 15.39 14.78 12.93 M6 76 0
24 THA 15-34 Or* 16 08 57.8026653048 -39 02 22.853868252   17.46 16.50 16.64 14.65 M6 67 0
25 2MASS J16090155-3905055 BD? 16 09 01.559 -39 05 05.59           ~ 3 0
26 THA 15-35 Or* 16 09 01.8486544824 -39 05 12.414717240   15.33 14.12 14.35 12.54 M5.5 142 0
27 2MASS J16090850-3903430 TT* 16 09 08.5062297456 -39 03 43.080273612   18.00 16.60 16.43 14.16 M5.0 21 0
28 2MASS J16091713-3927096 TT* 16 09 17.1451249440 -39 27 09.591968160   17.66 18.5 17.76 15.67 M5.5 13 0
29 Lupus 3 SFR 16 09.6 -39 03           ~ 348 0
30 Sz 118 Or* 16 09 48.6562295568 -39 11 16.847425032   18.32 16.90 16.61 15.00 K6 76 0
31 2MASS J16094986-3849029 Or* 16 09 49.8734955960 -38 49 02.958465792       19.85 17.62 ~ 7 0
32 SSTc2d J160954.5-391203 Or* 16 09 54.5014206690 -39 12 03.417301706   16.61 16.38 16.16 15.20 ~ 6 0
33 2MASS J16095628-3859518 Or* 16 09 56.2954845696 -38 59 51.581549796   17.37 18.0 16.49 15.28 M6.0e 53 0
34 THA 15-38 TT* 16 09 57.0796720248 -38 59 48.025255020   15.35 13.71 13.49 11.96 ~ 28 0
35 2MASS J16101612-3937560 * 16 10 16.1246035374 -39 37 56.033761200           ~ 2 0
36 UCAC4 252-085132 ** 16 10 54.39480 -39 40 05.7720       15.836   ~ 2 0
37 2MASS J16113859-3908273 Or* 16 11 38.6032797312 -39 08 27.317069592   18.00 18.8 17.21 15.37 ~ 5 0
38 2MASS J16115116-3851047 Or* 16 11 51.1641248592 -38 51 04.783630284   17.54 17.31 17.15 15.18 M4 10 0

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