Astrophysics (Index)About

Palomar Four-filter Survey

(PC)
(Hale telescope survey aimed at discovering high-redshift quasars)

I use the term Palomar Four-filter Survey for an astronomical survey of about 1990 carried out with the Four-shooter spectrograph/camera on the Hale Telescope, aimed at discovering high-redshift quasars. Photographs were taken with four custom filters designed to catch redshifted H-alpha emission lines with a P Cygni profile (an odd shape, characteristic of the star P Cygni, but expected to be visible in some quasars) and the designator "PC" might be taken from this.


(survey,galaxies,photometry)
Further reading:
https://ui.adsabs.harvard.edu/abs/1991ASPC...21..394S/abstract
https://authors.library.caltech.edu/54177/1/268779.pdf
PrefixExample  
PCPC 1247+3406 

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