SIMBAD references

2003A&A...403..141O - Astronomy and Astrophysics, volume 403, 141-154 (2003/5-3)

Stellar sources in the ISOGAL intermediate bulge fields.

OJHA D.K., OMONT A., SCHULLER F., SIMON G., GANESH S. and SCHULTHEIS M.

Abstract (from CDS):

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, K_s) 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 (K_s-[15])₀ colours, characteristic of mass-loss. The latter, especially (K_s-[15])₀, provide estimates of the mass-loss rates and show their distribution in the range 10^–8 to 10^–5M_☉/yr.

Abstract Copyright: ∼

Journal keyword(s): stars: AGB and post-AGB - stars: circumstellar matter - stars: mass-loss - dust: extinction - infrared: stars - Galaxy: bulge

VizieR on-line data: <Available at CDS (J/A+A/403/141): table1.dat table2a.dat table2b.dat>

Simbad objects: 2346

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