A Fast Reduction Method of Survey Data in Radio Astronomy

Details A Fast Reduction Method of Survey Data in Radio Astronomy A Fast Reduction Method of Survey Data in Radio Astronomy

Apr 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001jkas...34....1l&link_type=abstract

Journal of the Korean Astronomical Society, vol. 34, no. 1, pp. 1-8

Statistics

8

Spectra-Ism, Survey-Methods, Data Reduction

Scientific paper

We present a fast reduction method of survey data obtained using a single-dish radio telescope. Along with a brief review of classical method, a new method of identification and elimination of negative and positive bad channels are introduced using cloud identification code and several IRAF(Image Reduction and Analysis Facility) tasks relating statistics. Removing of several ripple patterns using Fourier Transform is also discussed. It is found that BACKGROUND task within IRAF is very efficient for fitting and subtraction of baseline with varying functions. Cloud identification method along with the possibility of its application for analysis of cloud structure is described, and future data reduction method is discussed.

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