Automatic spectral classification of low-mass late-type stars.

Details Automatic spectral classification of low-mass late-type stars. Automatic spectral classification of low-mass late-type stars.

Jul 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999acaps..19..297l&link_type=abstract

Acta Astrophys. Sin., Vol. 19, No. 3, p. 297 - 302

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Late-Type Stars: Spectral Classification

Scientific paper

In the course of optical identification of ROSAT selected weak-line T Tauri stars (WTTS) spectra were taken for a set of MK standards alongside the program stars with the same instrumental set-up, the 2.16 m optical telescope, the OMR (Optomechanics Research Inc.) spectrograph and the TEK 1024 CCD detector. All the data were reduced by the NOAO Image Reduction and Analysis Facility (IRAF) software packages and then normalized for the purpose of spectral classification. Corresponding spectral classification of the optical counterparts of the ROSAT selected WTTS was carried out. Accuracy of the automatic spectral classification is expected to be ±1 sub-class in most cases, which is sufficient for optical identification. This method of automatic classification is applicable to medium-dispersion (50 Å/mm) spectra of other late-type stars.

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