ISOGAL sources in intermediate bulge fields (Ojha+, 2003)

Details ISOGAL sources in intermediate bulge fields (Ojha+, 2003) ISOGAL sources in intermediate bulge fields (Ojha+, 2003)

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003ycat..34030141o&link_type=abstract

VizieR On-line Data Catalog: J/A+A/403/141. Originally published in: 2003A&A...403..141O

Computer Science

Infrared Sources, Photometry: Infrared

Scientific paper

We present a study of ISOGAL sources in the "intermediate" galactic bulge (|l|<2°, |b|~1°-4°), observed by ISOCAM at 7 and 15μm. In combination with near-infrared (I, J, Ks) data of DENIS survey, complemented by 2MASS data, we discuss the nature of the ISOGAL sources, their luminosities, the interstellar extinction and the mass-loss rates. A large fraction of the 1464 detected sources at 15μm are AGB stars above the RGB tip, a number of them show an excess in ([7]-[15])0 and (Ks-[15])0 colours, characteristic of mass-loss. The latter, especially (Ks-[15])0, provide estimates of the mass-loss rates and show their distribution in the range 10-8 to 10-5M&sun;/yr.
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