Contracting stars in the Pleiades

Details Contracting stars in the Pleiades Contracting stars in the Pleiades

Jul 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...231..468l&link_type=abstract

Astrophysical Journal, Part 1, vol. 231, July 15, 1979, p. 468-476.

Astronomy and Astrophysics

Astrophysics

53

Astronomical Photometry, Electrophotometry, Pleiades Cluster, Star Clusters, Stellar Evolution, Ubv Spectra, Graphs (Charts), Stellar Luminosity, Visual Photometry

Scientific paper

UBVR photoelectric observations have been made of faint stars selected as possible Pleiades cluster members on the basis of proper motions. Stars were found which appear to be still in the pre-main-sequence contraction phase. This implies that star formation can take place over an extended interval during a cluster lifetime. The observed Pleiades main sequence falls below the zero-age main sequence (ZAMS), indicating a possible need for a revision of the lower part of the ZAMS.

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