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Visual and Near-Infrared Photometry of Nearby Dwarf Spheroidals

Published online by Cambridge University Press:  25 May 2016

F. Kerschbaum ,
W. Nowotny ,
J. Hron  and
M. Schultheis
F. Kerschbaum
Affiliation:
Institut für Astronomie, A-1180 Wien, Austria
W. Nowotny
Affiliation:
Institut für Astronomie, A-1180 Wien, Austria
J. Hron
Affiliation:
Institut für Astronomie, A-1180 Wien, Austria
M. Schultheis
Affiliation:
Institut d'Astrophysique, F-75014 Paris, France

Abstract

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This paper is based on photometry from two different observational approaches. Both are of an explorative character and act as feasibility studies. For the future we plan to use these methods to study Asymptotic Giant Branch (AGB) stars in nearby galaxies.

First, we present results on broad-band photometry in Bessell V and I, as well as narrow-band measurements in the Wing 778 nm and 812 nm filters of a galactic globular cluster using the new Austrian Oe-FOSC (Oesterreich Faint Object Spectrograph and Camera), a copy of the ESO Instrument EFOSC mounted on our 1.5 m-telescope.

The second part of the contribution deals with the possibilities of using Gunn I, J and KS measurements originating from the DENIS (DEep Near Infrared Survey of the Southern Sky) project on similar objects. A few southern dwarf spheroidals already observed within DENIS (covering now some 40% of the southern hemisphere) are selected.

Type
Part 4. Morphology, Kinematics and Dynamics
Information
Symposium - International Astronomical Union , Volume 192: The Stellar Content of Local Group Galaxies , 1999 , pp. 455 - 458
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

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