| Issue |
A&A
Volume 383, Number 3, MarchI 2002
|
|
|---|---|---|
| Page(s) | 1088 - 1099 | |
| Section | Numerical methods and codes | |
| DOI | https://doi.org/10.1051/0004-6361:20011617 | |
| Published online | 15 March 2002 | |
Principles of the data reduction and first results of the fastscanning method for (sub)millimeter astronomy
Max–Planck–Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany e-mail: reichertz@mpifr-bonn.mpg.de; p223jsb@mpifr-bonn.mpg.de; ekreysa@mpifr-bonn.mpg.de
Corresponding author: B. Weferling, weferlin@mpifr-bonn.mpg.de
Received:
22
June
2001
Accepted:
7
November
2001
Ground-based astronomical continuum observations at (sub)millimeter wavelengths are especially difficult, because the emission of the atmospheric water vapor is usually much stronger than any astronomical signal. We present here the principles of the data reduction and first results of a new observing method that accounts for the atmospheric emission by measuring its total power with an array of detectors. We call the method fastscanning. We outline the data reduction for (sub)millimeter bolometer arrays and demonstrate the effectiveness by presenting results of astronomical observations done with the new method.
Key words: methods: observational / instrumentation: detectors / methods: data analysis / atmospheric effects
© ESO, 2002
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