Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-28T16:51:26.217Z Has data issue: false hasContentIssue false
  • English
  • Français

Stellar sources in the ISOGAL outer bulge fields (7 and 15 μm ISOCAM observations)

Published online by Cambridge University Press:  25 September 2002

M. Giard ,
J.P. Bernard ,
A. Klotz ,
I. Ristorcelli ,
D. K. Ojha ,
A. Omont ,
F. Schuller  and
G. Simon
D. K. Ojha
Affiliation:
Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai-400005, India
A. Omont
Affiliation:
Institut d'Astrophysique de Paris, CNRS, 98bis Bd. Arago, 75014 Paris, France
F. Schuller
Affiliation:
Institut d'Astrophysique de Paris, CNRS, 98bis Bd. Arago, 75014 Paris, France
G. Simon
Affiliation:
DASGAL, Observatoire de Paris, 61 avenue de l'Observatoire, 75014 Paris, France
Get access

Abstract

We report the study of ISOGAL fields in the outer galactic bulge. We have combined 7 and 15 μm ISOCAM observations with DENIS IJKs near-infrared data to determine the nature of the sources and the interstellar extinction. Most of the ISOGAL sources show evolution of mass-loss rates in the range 10-8 to 10-6 M⊙/year. Most of the detected sources are red giants above the RGB tip; a few of them show an excess inand J - Ks-[15] colors. These sources are detected as AGB stars with large mass-loss rates.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 4: Infrared and Submillimeter Space Astronomy: An International Colloquium to Honor the Memory of Guy Serra , 2002 , pp. 157
Copyright
© EAS, EDP Sciences, 2002

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)