2011MNRAS.416.1522C

Query : 2011MNRAS.416.1522C

2011MNRAS.416.1522C - Mon. Not. R. Astron. Soc., 416, 1522-1534 (2011/September-2)

A possible sequential star formation in the giant molecular cloud G174+2.5.

CAMARGO D., BONATTO C. and BICA E.

Abstract (from CDS):

We investigate the nature of 14 embedded clusters (ECs) related to a group of four H II regions, Sh2-235, Sh2-233, Sh2-232 and Sh2-231, in the giant molecular cloud G174 + 2.5. Projected towards the Galactic anticentre, these objects are possible examples of the collect-and-collapse scenario. We derive astrophysical parameters (age, reddening, distance, core and cluster radii) for the ECs and investigate the relationship between these parameters. Parameters are derived with field-star-decontaminated 2MASS colour–magnitude diagrams (CMDs) and stellar radial density profiles. The CMDs of these young clusters are characterized by a poorly populated main sequence and a significant number of pre-main-sequence stars, affected by differential reddening. The ECs are KKC 11, FSR 784, Sh2-235 East2, Sh2-235 Cluster, Sh2-233 SE Cluster, BDSB 73, Sh2-235B Cluster, BDSB 72, BDSB 71, Sh2-232 IR Cluster, PCS 2, and the newly found clusters CBB 1 and CBB 2. We were able to derive fundamental parameters for all ECs in the sample. Structural parameters are derived for FSR 784, Sh2-235 Cluster and Sh2-235 East2. CoRoT 102699796, the first metal-poor Herbig Ae pulsator: a hybrid δ Sct–γ Dor variable?

Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): open clusters and associations: general - Galaxy: stellar content - Galaxy: structure

Nomenclature: Table 2: CBB N N=2 (Nos 1 and 2).

Simbad objects: 36

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Number of rows : 36
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 Per Arm PoG 03 30 +45.0           ~ 1672 0
2 NAME G173 Complex HII 05 35 +36.0           ~ 16 0
3 SH 2-233 HII 05 38 31.5 +35 51 19           ~ 71 1
4 IRAS 05358+3543 Y*O 05 39 09.92 +35 45 17.2           ~ 171 0
5 [BDB2003] G173.48+02.45 Cl* 05 39 12.5 +35 45 53           ~ 4 0
6 SH 2-233 B HII 05 39 13.1 +35 45 50           ~ 5 0
7 SH 2-231 Y*O 05 39 13.2 +35 45 48           ~ 135 0
8 RNO 49 ISM 05 39.3 +35 47           ~ 3 0
9 CBB 1 Cl* 05 39 23.0 +35 41 22           ~ 3 0
10 NAME IRAS 05361+3539 Cluster Cl* 05 39 28 +35 40.7           ~ 13 0
11 IRAS 05361+3539 HII 05 39 28.67 +35 40 38.7           ~ 41 0
12 [FSR2007] 0784 Cl* 05 40 44.1 +35 55 25           ~ 8 0
13 NAME S235 North-West Cl* 05 40 45.730 +35 55 05.72           ~ 6 0
14 SH 2-235 C HII 05 40 50.3 +35 38 23           ~ 17 0
15 [BDS2003] 71 Cl* 05 40 51 +35 38.3           ~ 5 0
16 NAME S235 A-B-C Cl* 05 40 51.940 +35 41 35.49           ~ 17 0
17 SH 2-235 B HII 05 40 52.366 +35 41 29.43   17       ~ 180 1
18 BFS 46 HII 05 40 52.902 +35 42 16.72           ~ 53 1
19 SH 2-235 A HII 05 40 53.333 +35 42 22.29           ~ 57 1
20 BFS 47 HH 05 40.9 +35 39           ~ 17 0
21 [BDS2003] 72 Cl* 05 40 54 +35 40.4           ~ 5 0
22 RNO 52 ISM 05 40.9 +35 42           ~ 3 0
23 [BDS2003] 73 OpC 05 40 55 +35 44.1           ~ 13 0
24 BD+35 1201 * 05 40 59.4402789480 +35 50 46.496465268 11.23 11.43 10.54     O9.5V 48 0
25 GGD 6 HH 05 41.0 +35 44           ~ 11 0
26 SH 2-235 HII 05 41.1 +35 50           ~ 236 0
27 NAME S232 IR Cl* 05 41 07.800 +36 12 27.00           ~ 3 0
28 NAME S235 Central Cl* 05 41 07.850 +35 49 16.80           ~ 9 0
29 CBB 2 Cl* 05 41 11.0 +35 50 10           ~ 4 0
30 NAME S235 East2 Cl* 05 41 24.190 +35 52 15.96           ~ 10 0
31 NAME S235 East1 Cl* 05 41 29.550 +35 49 21.65           ~ 9 0
32 RAFGL 5165 IR 05 41 37.4 +35 48 49           ~ 21 0
33 SH 2-232 HII 05 42 28 +36 11.4           ~ 56 0
34 NAME Gal Anticenter reg 05 46 +28.9           ~ 1024 0
35 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
36 SH 2-233 A HII ~ ~           ~ 2 0

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