SIMBAD references

2011AJ....141..139A - Astron. J., 141, 139 (2011/April-0)

CSO bolocam 1.1 mm continuum mapping of the braid nebula star formation region in Cygnus OB7.

ASPIN C., BECK T.L., DAVIS C.J., FROEBRICH D., KHANZADYAN T., MAGAKIAN T.Yu., MORIARTY-SCHIEVEN G.H., MOVSESSIAN T.A., MITCHISON S., NIKOGOSSIAN E.G., PYO T.-S. and SMITH M.D.

Abstract (from CDS):

We present a 1.1 mm map of the Braid Nebula star formation region in Cygnus OB7 taken using Bolocam on the Caltech Submillimeter Observatory. Within the 1 deg2 covered by the map, we have detected 55 cold dust clumps all of which are new detections. A number of these clumps are coincident with IRAS point sources although the majority are not. Some of the previously studied optical/near-IR sources are detected at 1.1 mm. We estimate total dust/gas masses for the 55 clumps together with peak visual extinctions. We conclude that over the whole region, approximately 20% of the clumps are associated with IRAS sources suggesting that these are protostellar objects. The remaining 80% are classed as starless clumps. In addition, both FU Orionis (FUor) like objects in the field, the Braid Star and HH 381 IRS, are associated with strong millimeter emission. This implies that FUor eruptions can occur at very early stages of pre-main-sequence life. Finally, we determine that the cumulative clump mass function for the region is very similar to that found in both the Perseus and ρ Ophiuchus star-forming regions.

Abstract Copyright:

Journal keyword(s): ISM: clouds - ISM: jets and outflows - stars: formation

Nomenclature: Fig. 3, Tables 1+3: [ABD2011] GLLL.lll+BB.bbb N=55 = [ABD2011] NN (Nos 1-55). Table 2: [MKM2003b] CNNW (Nos CN1S, CN6N) added.

Status at CDS:  

CDS comments: In table 2, 2MASS J20585089+5228254 is a probable misprint for 2MASS J20585089+5228227.

Simbad objects: 104

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