Computer Science – Performance
Scientific paper
Sep 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986iraj...17..487m&link_type=abstract
(Astronomical Science Group of Ireland, Meeting, Queen's University of Belfast, Northern Ireland, Apr. 4, 1986) Irish Astronomic
Computer Science
Performance
4
Astronomical Spectroscopy, Cameras, Charge Coupled Devices, Echelette Gratings, Spectrographs, Telescopes, Interstellar Matter, Planetary Nebulae, Seyfert Galaxies, Stellar Spectra
Scientific paper
The performance of the Royal Greenwich Observatory CCD camera and the Queen's University of Belfast echelle spectrograph system on the 1-m Jacobus Kapteyn telescope at La Palma, Canary Islands is evaluated. The design and operation of the CCD-echelle spectrograph are described, and applications for the system are discussed. Examples of interstellar line profiles, stellar line profiles, and stigmatic spectral studies of planetary nebulae are presented and examined. It is determined that the CCD-echelle spectrograph provides accurate data on the element abundances and velocity distributions in the interstellar medium; on absorption-line profiles and equivalent widths for hot OB stars in the red near-IR spectral region; and on the excitation, extinction, and kinematic motions in planetary nebulae.
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