Near and Mid-infrared images of the massive star forming complex G9.62+0.19

Details Near and Mid-infrared images of the massive star forming complex G9.62+0.19 Near and Mid-infrared images of the massive star forming complex G9.62+0.19

Jan 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003a%26a...397..227p&link_type=abstract

Astronomy and Astrophysics, v.397, p.227-236 (2003)

Astronomy and Astrophysics

Astrophysics

11

Stars: Formation, Infrared: Stars

Scientific paper

A near- and mid-infrared study of the star formation complex G9.62+0.19 is presented. It includes photometrically calibrated images through wide-band JHK and narrow-band Brgamma , H2 and 12.5 mu m filters. These were taken at Las Campanas, La Silla and OAN-San Pedro Mártir. We found evidence of two embedded young clusters of O-B5 stars associated with the radio components B and C, one compact and one ultracompact HII region. The data suggest the presence of a third, more dispersed cluster of more luminous infrared stars at the southern edge of the cloud complex. A large fraction of the star members of each cluster exhibit significant infrared excess. We confirm the detection of a very red near- and mid-infrared source immersed in the molecular hot core (component F). An H2 shocked gas knot, probably an obscured Herbig-Haro object, was found associated to the blue-shifted lobe of the high-velocity molecular outflow in this core. The properties of the individual sources are discussed in detail. Partly based on observations collected at the European Southern Observatory, La Silla, at the Las Campanas Observatory, Chile and at the Observatorio Astronómico Nacional, San Pedro Mártir, Mexico.

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