Pulsation of Pre-Main Sequence Stars in Young Open Clusters

Details Pulsation of Pre-Main Sequence Stars in Young Open Clusters Pulsation of Pre-Main Sequence Stars in Young Open Clusters

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001noao.prop..104z&link_type=abstract

NOAO Proposal ID #2001B-0104

Physics

Scientific paper

The aim of this proposal is to determine observationally the parameter space of the pre-main sequence instability strip. For that purpose we intend to obtain photometric timeseries with high time resolution and low noise level of the stars in young open clusters (IC 4996, NGC 6910 and NGC 6383) and to identify pre-main sequence pulsators. Several cluster members have the spectral types of interest (A-F) and lie between the birthline and the zero-age main sequence. Up to now the number of pre-main sequence pulsators is absolutely inadequate to determine reliably the hot and cool border of the according instability region. Its definition is indispensable for a better understanding of the internal structure and evolution of such stars.

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