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Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/3707
Title: Effects of rotation on the colours and line indices of stars. I - The Alpha Persei Cluster
Authors: Rajamohan, R
Mathew, A
Keywords: B Stars
Binary Stars
Interstellar Extinction
Peculiar Stars
Stellar Color
Stellar Rotation
Angular Velocity
H Beta Line
Star Clusters
Stellar Magnitude
Issue Date: Jun-1988
Publisher: Indian Academy Sciences
Citation: Journal of Astrophysics and Astronomy , Vol. 9, No. 2, pp. 107 - 116
Abstract: Analysis of the available observational data for the Alpha-Persei cluster members shows that rotation effects on the intermediate-band indices c1 and (u-b) are considerable. In c1, rotation produces a reddening of 0.040 magnitudes per 100 km/s. In (u-b), the effect for B stars is found to be 0.06 magnitudes per 100 km/s of V sin i. The binaries and peculiar stars are found to behave differently in the color excess (due to rotation) versus V sin i diagrams. These empirical effects can be utilized to recalibrate these color indices and also to separate members that are either chemically peculiar or in binary systems.
URI: http://hdl.handle.net/2248/3707
ISSN: 0250-6335
Appears in Collections:IIAP Publications

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