Computer Science – Performance
Scientific paper
Dec 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982pasp...94.1029p&link_type=abstract
Astronomical Society of the Pacific, Publications, vol. 94, Dec. 1982, p. 1029-1036.
Computer Science
Performance
7
Calibrating, Chemical Composition, Spectral Line Width, Spectrographs, Subgiant Stars, Abundance, Chemical Evolution, Globular Clusters, Milky Way Galaxy, Performance Tests, Spectral Resolution, Spectrograms
Scientific paper
Equivalent widths measured from spectrograms obtained with the echelle spectrograph at the Kitt Peak National Observatory are compared in detail with measurements obtained from conventional coude spectrographs. Equivalent width measurements of the bright standard star Arcturus are used to recalculate the composition of that star. The results of all tests performed indicate that equivalent width measurements from the echelle spectrographs are in reasonable agreement with those obtained from other instruments, and can be used reliably to derive element abundances in stars. The degradation of resolution by the image tube should be considered in comparing echelle spectrograms to spectrograms from other instruments with similar reciprocal dispersion; measurements of equivalent widths in crowded spectral regions may be uncertain due to blending.
Cottrell Peter
Dominy James F.
May D. C.
Pilachowski Catherine
Sneden Chistopher
No associations
LandOfFree
The equivalent-width calibration of the KPNO echelle spectrograph 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 The equivalent-width calibration of the KPNO echelle spectrograph, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The equivalent-width calibration of the KPNO echelle spectrograph will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-931351