Mathematics
Scientific paper
Aug 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pasp..104..704t&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 104, no. 678, Aug. 1992, p. 704-710.
Mathematics
9
Astrometry, Calibrating, Prisms, Stellar Spectra, Wavelengths, G Stars, K Stars, Red Shift, Transformations (Mathematics)
Scientific paper
A method is presented to obtain wavelength reference points for spectra on objective-prism plates by transformation of object positions from the corresponding direct plates. The objects used for the transformation are approximately 3000 automatically classified G/K-type stars per field; the characteristic spectral feature used on the prism plates is the Ca II break at 4000 A. The transformation from direct to prism plates predicts for each object the location of the Ca II break, thus providing a wavelength reference point. This method was applied in the Muenster Redshift Project to nine fields near the South Galactic Pole, where redshifts for galaxies up to 0.3 are measured. Systematic patterns in the residuals of the transformation caused by the complicated geometry of Schmidt plates are apparent, but their amplitudes are smaller than the random error of the transformation, sigma = 0.51 arcsec.
Schuecker Peter
Tucholke Hans-Joachim
No associations
LandOfFree
Astrometric wavelength calibration of objective-prism spectra does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Astrometric wavelength calibration of objective-prism spectra, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Astrometric wavelength calibration of objective-prism spectra will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1168351