ISOCAM CVF OBSERVATIONS OF THE QUINTUPLET AND OBJECT-NUMBER-17 CLUSTERS NEAR THE GALACTIC-CENTER

Citation
T. Nagata et al., ISOCAM CVF OBSERVATIONS OF THE QUINTUPLET AND OBJECT-NUMBER-17 CLUSTERS NEAR THE GALACTIC-CENTER, Astronomy and astrophysics, 315(2), 1996, pp. 205-208
Citations number
25
Categorie Soggetti
Astronomy & Astrophysics
Journal title
ISSN journal
00046361
Volume
315
Issue
2
Year of publication
1996
Pages
205 - 208
Database
ISI
SICI code
0004-6361(1996)315:2<205:ICOOTQ>2.0.ZU;2-D
Abstract
Two fields near the Galactic Center, containing the Quintuplet and Obj ect #17 star-clusters, have been imaged with the ISOCAM circular varia ble filters (CVFs) in the wavelength range of 2.47 - 3.08 mu m and 3.9 9 - 9.09 mu m. Emission of [Ar II] 6.99 mu m is detected in the ''pist ol-shaped'' H II region (G0.15-0.05) to the south bf the Quintuplet cl uster. Absorption probably due to O-H stretching vibration (2.8 mu m) is evident in the Quintuplet spectra. In addition, Quintuplet members and the central part of Object #17 have CO2(4.3 mu m) and CO (4.7 mu m ) absorption. Abundant CO2 might be present in these lines of sight.