Sethi@berkeley– a Piggyback 21-cm Sky Survey at Arecibo

  title={Sethi@berkeley– a Piggyback 21-cm Sky Survey at Arecibo},
  author={Eric Korpela and Paul Demorest and Carl Heiles},
SETI@home observes a 2.5 MHz bandwidth centered on 1420 MHz near the 21-cm line using a short line feed at Arecibo which provides a 6 ′ beam. This feed sits on Carriage House 1. During normal astronomical observations with the new Gregorian dome the feed scans across the sky at twice the sidereal rate. We are using the SETI@home receiver to obtain about 4.4… CONTINUE READING