Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997abos.conf..633t&link_type=abstract
Conference Paper, Astronomical and Biochemical Origins and the Search for Life in the Universe, IAU Colloquium 161, Publisher: B
Astronomy and Astrophysics
Astronomy
1
Space Observations (From Earth), Radio Telescopes, Project Seti, Radio Antennas, Transmitters, Radar Antennas, Radio Interferometers
Scientific paper
We used the Parkes and Mopra antennas of the Australia Telescope National Facility (ATNF) and observed 209 solar-type stars in the Southern Hemisphere over much of the frequency range 1200-3000 MHz. The sensitivity of these observations was sufficient to rule out any narrowband transmitters stronger than 5 x 10 exp 12 W (the power of strong terrestrial radars) broadcasting during our observations. The use of two widely separated antennas, linked together as a pseudo-interferometer, proved to be an extremely effective discriminant against RFI. This mode of observing will be continued by Project Phoenix. Observations begin again in October of 1996, with the 140-ft antenna at NRAO Green Bank linked to an old AT&T Earth Station at Woodbury, Georgia, that has been resuscitated by students and faculty at Georgia Tech Research Corporation. Later observations will make use of the Arecibo Observatory and the Nangay Observatory, each linked with a second site.
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