SIMBAD references

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.


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: 38

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