2006A&A...453..937Y


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.02CET13:05:12

2006A&A...453..937Y - Astronomy and Astrophysics, volume 453, 937-941 (2006/7-3)

Star formation in the southern dark cloud DC 287.1+02.4.

YUN J.L. and FIGUEIRA P.R.

Abstract (from CDS):

We report the discovery of a group of 12 new infrared sources seen toward IRAS 10501-5630 and the southern dark globule DC 287.1+02.4. The globule appears as a round patch of extinction in optical images with a typical diameter of 5 arcmin. The sources are seen on Ks and L' band images taken using SOFI at the NTT and ISAAC at the VLT. The globule was mapped in millimeter molecular transitions (CO(1-0), C18O(1-0), C18O(2-1), CS(2-1), HCN(1-0)) using the SEST telescope. Millimeter-wave spectroscopy revealed a single dense core seen in C18O, CS, and HCN, extending about 2 arcmin. The infrared sources are likely to be embedded in the dense cloud core. The reddest of the new infrared sources, named here DC 287.1+02.4 IRS, is not detected shortward of 2µm, and it exhibits a very red (Ks-L') colour. The location and colour of this source suggest that this is the near-infrared counterpart of IRAS 10501-5630. Red nebular emission with an elongated shape is also seen in the H and Ks band images and could be due to scattered light originating in the embedded objects.

Abstract Copyright:

Journal keyword(s): stars: formation - ISM: clouds - ISM: individual: objects: DC 287.1+02.4 - infrared: ISM - radio lines: ISM - ISM: dust, extinction

Nomenclature: Table 2: [YF2006] NN N=12 among (Nos 3-18).

Simbad objects: 18

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Number of rows : 18

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 HD 4620 * 00 48 02.8693629644 -02 35 25.166502052   10.83 9.87     K1/2(V) 8 0
2 HD 40335 * 05 58 13.5235890585 +01 51 23.008677000   7.16 6.91     A1II 81 0
3 GSPC S372-S * 09 15 50.6 -36 32 34           ~ 6 0
4 [YF2006] 3 NIR 10 52 13.8 -56 46 35           ~ 1 0
5 [YF2006] 5 NIR 10 52 14.7 -56 46 30           ~ 1 0
6 [YF2006] 6 NIR 10 52 14.8 -56 46 34           ~ 1 0
7 [YF2006] 7 NIR 10 52 14.8 -56 46 31           ~ 1 0
8 [YF2006] 9 NIR 10 52 15.2 -56 46 43           ~ 1 0
9 IRAS 10501-5630 HII 10 52 15.4 -56 46 28           ~ 9 1
10 NAME DCld 287.1+0.24 IRS NIR 10 52 15.5 -56 46 43           ~ 1 0
11 [YF2006] 11 NIR 10 52 15.6 -56 46 31           ~ 1 0
12 2MASS J10521569-5647054 NIR 10 52 15.69 -56 47 05.4           ~ 1 0
13 2MASS J10521634-5647032 NIR 10 52 16.3459542109 -56 47 03.181606589           ~ 1 0
14 2MASS J10521702-5646584 NIR 10 52 17.0009456316 -56 46 58.314598053           ~ 1 0
15 [YF2006] 16 NIR 10 52 17.7 -56 46 45           ~ 1 0
16 [YF2006] 18 NIR 10 52 18.9 -56 46 57           ~ 1 0
17 [DB2002b] G287.12+2.40 DNe 10 52 23 -56 46.0           ~ 6 2
18 NAME DCld 287.1+02.4 IRS ? ~ ~           ~ 1 0

    Equat.    Gal    SGal    Ecl

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2021.03.02-13:05:12

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