Spectral classification in the ORI OB1 association.

Details Spectral classification in the ORI OB1 association. Spectral classification in the ORI OB1 association.

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998larm.confe.106l&link_type=abstract

"IX Latin American Regional IAU Meeting, "Focal Points in Latin American Astronomy", held in Tonantzintla, Mexico, Nov 9-13, 199

Astronomy and Astrophysics

Astronomy

Scientific paper

We have classified 526 stars included by Warren and Hesser in their photometric study of the Orion Association made in the late seventies. The spectra recorded in the last decade on photographic plates were taken with the spectrographs at the 1.5 m and 1 m telescopes at CTIO and were classified in the MK system. We have discussed membership using our spectroscopic data and new proper motions. We have derived spectroscopic distances and reddening and we discussed the incidence of CP objects among the members of the association. We have also derived the projected axial rotation of each object.

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