Near and Mid-infrared images of the massive star forming complexG9.62+0.19
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 Brγ, H2 and 12.5 $~\mu \rm m$ filters. These were taken at Las Campanas, La Silla and OAN-San Pedro Mártir. We found evidence of t...
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Published in | Astronomy and astrophysics (Berlin) Vol. 397; no. 1; pp. 227 - 236 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
EDP Sciences
01.01.2003
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Subjects | |
Online Access | Get full text |
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Summary: | 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 Brγ, H2 and 12.5 $~\mu \rm m$ 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. |
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Bibliography: | ark:/67375/80W-J4529TVK-X other:2003A%26A...397..227P istex:1E7A51C88DAF09D6F314CE3E578CE9D283C89113 publisher-ID:aah3662 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. |
ISSN: | 0004-6361 1432-0746 |
DOI: | 10.1051/0004-6361:20021480 |