Effects of rotation on colours and line indices of stars |
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| Authors: | R Rajamohan Annamma Mathew |
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| Institution: | (1) Indian Institute of Astrophysics, Bangalore, India |
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| Abstract: | We have analysed the broad-bandUBV colours and the intermediate banduvby colours of  Persei, Pleiades, and the Scorpio-Centaurus association for rotation effects. An attempt was made to see if we can discriminate normal single stars from that of binary and peculiar stars after taking the observed rotation effects into account. It is found that the spread in the observed colours does not allow in general such a discrimination except that the objects with large reddening are double-lined binaries, peculiar stars or emission-lined objects. The few normal stars in these three clusters with such large reddening are listed as they are likely to belong to one of the above classes.On leave of absence from Assumption College, Changanacherry, Kerala. |
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