JHKL observations of IRAS sources. III - The Galactic bulge

Astronomy and Astrophysics – Astronomy

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Astronomical Photometry, Galactic Bulge, Galactic Structure, Infrared Spectra, Milky Way Galaxy, Stellar Envelopes, Variable Stars, Infrared Astronomy Satellite, Mira Variables, Near Infrared Radiation, Stellar Mass, Stellar Temperature

Scientific paper

JHKL observations have been made of a sample of 44 IRAS objects in the direction of the galactic bulge. These data indicate that many of the objects are Mira-like variables with cool dust shells. A comparison between the IRAS and near-infrared measurements of these and the local Miras suggests that there is no fundamental difference between the two groups. In particular the suggestion that the bulge contains objects that are significantly cooler and more massive than the local population is not substantiated.

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