Sep 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989msngr..57...15s&link_type=abstract
The Messenger, vol. 57, p. 15-18
Physics
1
Galactic Center: Structure, Galactic Center: Carbon Monoxide, Galactic Center: Molecular Clouds
Scientific paper
One of the most interesting and mysterious regions of our Milky Way galaxy is the Galactic Centre (GC). Lying at a distance of 8.5 kpc in the direction of Sagittarius, it is best observed from the southern hemisphere. However, great masses of intervening dust in the plane of the Galaxy produce 30 magnitudes of absorption and the GC is not observable in the optical region. Most of the knowledge that we possess about the GC has been obtained at infrared and radio Wavelengths, using northern hemisphere telescopes. These observations are often hampered by the low elevation of the object, resulting in atmospheric problems and short observing sessions. With its declination of about -30°, the GC becomes almost a zenith object at transit over La Silla and is therefore weil suited for studies with SEST.
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