Interstellar extinction towards the inner Galactic Bulge
M. Schultheis(1), S. Ganesh(1,2), G. Simon(3), A. Omont(1), C. Alard(3,1), J. Borsenberger(1), E. Copet(4,1), N. Epchtein(6), P. Fouqué(5), & H. Habing (7)
(1) Institut d'Astrophysique de Paris, CNRS, 98bis Bd Arago, F-75014 Paris
(2) Physical Research Laboratory, Navarangpura, Ahmedabad 380009, India
(3) DASGAL CNRS UMR 8633, Observatoire de Paris, France
(4) DESPA CNRS-UMR 8632, Observatoire de Paris, France
(5) ESO, Santiago, Chile
(6) O.C.A., Nice, France
(7) Leiden Observatory, Leiden, The Netherlands
Paper: accepted for A&A Letters
Abstract:
DENIS observations in the J (1.25 micron ) and K_S (2.15 micron ) bands
together with
isochrones calculated for the RGB and
AGB phase are used to draw an extinction map of the inner Galactic Bulge.
The uncertainty in this method is mainly limited by the optical depth
of the Bulge itself. A comparison with fields of known extinction
shows a very good agreement. We present an extinction map
for the inner Galactic Bulge (~ 20 deg2)
Preprints available from the authors at shashi@prl.ernet.in
,
or the raw TeX (no figures) if you click here.
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