Unexpected effects of a trap in CCD echelle spectra of B-type stars

Details Unexpected effects of a trap in CCD echelle spectra of B-type stars Unexpected effects of a trap in CCD echelle spectra of B-type stars

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pasp..102..682m&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 102, June 1990, p. 682-687. Research supported by the U

Astronomy and Astrophysics

Astronomy

B Stars, Charge Coupled Devices, Echelle Gratings, Stellar Spectra, Absorption Spectra, Emission Spectra, Signal To Noise Ratios

Scientific paper

Because of the nature of echelle spectra, cosmetic defects such as traps
may mimic real spectral features. An example from spectra taken at CTIO
with a GEC CCD is presented, and it is shown how the affected pixels can
be eliminated from the reduced spectrum, at a slight cost in
signal-to-noise ratio.

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