ISOCAM CVF observations of the Quintuplet and Object #17 clusters near the Galactic Center

T. Nagata(1), K. Kawara(2,3), T. Onaka(4), Y. Kitamura(2), & H. Okuda(2)

(1) Department of Physics, Nagoya University, Nagoya 464-01, Japan (nagata@zlab.phys.nagoya-u.ac.jp)
(2) Institute of Space and Astronautical Science, Yoshinodai, Sagamihara 229, Japan
(3) ISO Science Operations Centre, Astrophysics Division of ESA, Villafranca, 28080 Madrid, Spain
(4) Department of Astronomy, University of Tokyo, Tokyo 113, Japan

Paper: Accepted in A&A (First results from ISO)

Abstract:

Two fields near the Galactic Center, containing the Quintuplet and Object #17 star-clusters, have been imaged with the ISOCAM circular variable filters (CVFs) in the wavelength range of 2.47 - 3.08 micron and 3.99 - 9.09 micron . Emission of [Ar II] 6.99 micron is detected in the ``pistol-shaped'' H II region (G0.15-0.05) to the south of the Quintuplet cluster. Absorption probably due to O-H stretching vibration (2.8 micron) is evident in the Quintuplet spectra. In addition, Quintuplet members and the central part of Object #17 have CO_2(4.3 micron) and CO (4.7 micron) absorption. Abundant CO_2 might be present in these lines of sight.

Preprints available from the authors at nagata@zlab.phys.nagoya-u.ac.jp , or the raw TeX (no figures) if you click here.

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