Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-04-23
Astronomy and Astrophysics
Astrophysics
To appear in MNRAS. 7 pages, 9 figures. 1 large figure (no. 1) is supplied as a separate JPEG file. The complete paper can be
Scientific paper
10.1046/j.1365-8711.1998.01746.x
We describe a method for the extraction of spectra from high dispersion objective prism plates. Our method is a catalogue driven plate solution approach, making use of the Right Ascension and Declination coordinates for the target objects. In contrast to existing methods of photographic plate reduction, we digitize the entire plate and extract spectra off-line. This approach has the advantages that it can be applied to CCD objective prism images, and spectra can be re-extracted (or additional spectra extracted) without having to re-scan the plate. After a brief initial interactive period, the subsequent reduction procedure is completely automatic, resulting in fully-reduced, wavelength justified spectra. We also discuss a method of removing stellar continua using a combination of non-linear filtering algorithms. The method described is used to extract over 12,000 spectra from a set of 92 objective prism plates. These spectra are used in an associated project to develop automated spectral classifiers based on neural networks.
Bailer-Jones Coryn A. L.
Hippel Ted von
Irwin Mike
No associations
LandOfFree
Semi-automated Extraction of Digital 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 Semi-automated Extraction of Digital Objective Prism Spectra, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semi-automated Extraction of Digital Objective Prism Spectra will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-672222