The detection of planetary nebulae near the galactic centre at radio wavelengths. I

Astronomy and Astrophysics – Astronomy

Scientific paper

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Galactic Nuclei, Planetary Nebulae, Radio Sources (Astronomy), Astronomical Maps, H Ii Regions, Mass Distribution, Microwave Interferometers, Milky Way Galaxy, Radial Velocity, Radio Telescopes, Stellar Luminosity

Scientific paper

During a search at 1415 MHz near the galactic center 123 sources have been detected, 14 of which are identified with optically known planetary nebulae, mostly at the distance of the galactic center. Out of the 109 remaining sources we predict that probably 85 are extragalactic background sources. The remaining 24 sources we interpret as a collection of optically invisible planetary nebulae and compact H II regions. The number of sources per unit area increases towards the galactic center. If interpreted as planetary nebulae the distribution is roughly what one expects from other information on the galactic center.

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