Rotation periods of selected members of the Alpha Persei cluster

Details Rotation periods of selected members of the Alpha Persei cluster Rotation periods of selected members of the Alpha Persei cluster

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.262..521o&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 262, no. 2, p. 521-533.

Astronomy and Astrophysics

Astronomy

40

Astronomical Photometry, Dwarf Stars, G Stars, Late Stars, Open Clusters, Stellar Rotation, Power Spectra, Spectrum Analysis, Starspots

Scientific paper

We present a photometric study of 11 G-K dwarf members of the young open cluster surrounding Alpha Persei, whose projected rotational velocities have indicated them to be rapid rotators. We detect significant rotational modulation due to surface inhomogeneities in 10 of the targets. We determine reliable axial rotation periods for six of these stars, using power spectrum analysis augmented with the CLEAN algorithm. Similar period analysis is also given for a further member whose power spectrum yielded ambiguous results.

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