The Serpens OB2 Association and Its Thermal ``Chimney''

Details The Serpens OB2 Association and Its Thermal ``Chimney'' The Serpens OB2 Association and Its Thermal ``Chimney''

Nov 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aj....120.2594f&link_type=abstract

The Astronomical Journal, Volume 120, Issue 5, pp. 2594-2608.

Astronomy and Astrophysics

Astronomy

6

Ism: H Ii Regions, Ism: Structure, Open Clusters And Associations: Individual (Serpens Ob2), Stars: Early-Type

Scientific paper

UBVRI photometry and MK spectral types have been obtained for a nearly complete sample of the massive star population of the Serpens OB2 association. This relatively neglected association is found to contain over 100 OB stars at a distance of 1.9+/-0.3 kpc and with a common age of 5+/-1 Myr. These stars illuminate the large H II region S54, and are directly connected to the unusual thermal ``chimney'' detected by Müller et al. Evidence is given of continuing star formation within the association, and the relationship between the association stars and the chimney is discussed.

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