The 9C survey at 15 GHz (9C) is an astronomical catalogue generated from the radio observations of the Ninth Cambridge survey at 15 GHz. It was published in 2003 by the Cavendish Astrophysics Group of the University of Cambridge. The catalogue was originally made in order to locate radio sources which were interfering with observations using the Very Small Array, but the catalogue has also proved useful for other astronomical programs.
Sources are labelled 9CJHHMM+DDMM where HHMM+DDMM are the coordinates in the J2000 system, e.g. 9CJ1510+4138.
Famous quotes containing the words ninth, cambridge and/or survey:
“So in majestic cadence rise and fall
The mighty undulations of thy song,
O sightless bard, England’s Monides!
And ever and anon, high over all
Uplifted, a ninth wave superb and strong,
Floods all the soul with its melodious seas.”
—Henry Wadsworth Longfellow (1809–1882)
“the Cambridge ladies who live in furnished souls
are unbeautiful and have comfortable minds”
—E.E. (Edward Estlin)
“By contrast with history, evolution is an unconscious process. Another, and perhaps a better way of putting it would be to say that evolution is a natural process, history a human one.... Insofar as we treat man as a part of nature—for instance in a biological survey of evolution—we are precisely not treating him as a historical being. As a historically developing being, he is set over against nature, both as a knower and as a doer.”
—Owen Barfield (b. 1898)