Rotation velocities in Pleiades and αPer (Jackson+, 2010)

Details Rotation velocities in Pleiades and αPer (Jackson+, 2010) Rotation velocities in Pleiades and αPer (Jackson+, 2010)

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010ycat..74021380j&link_type=abstract

VizieR On-line Data Catalog: J/MNRAS/402/1380. Originally published in: 2010MNRAS.402.1380J

Mathematics

Probability

Clusters: Open, Rotational Velocities

Scientific paper

We investigate to what extent the spin axes of stars in young open clusters are aligned. Assuming that the spin vectors lie uniformly within a conical section, with an opening half-angle between λ=0° (perfectly aligned) and λ=90° (completely random), we describe a Monte Carlo modelling technique that returns a probability density for this opening angle given a set of measured sini values, where i is the unknown inclination angle between a stellar spin vector and the line of sight.
(1 data file).

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