CYCLE LENGTH CHANGES OF THE SRd VARIABLE UU HER?
Best fit periods for individual seasons show variations from 27d to 101d with a possible cycle ≈ 5500d. One - and multi- frequency sine approximations of 650 photovisual observations argue for a formal 2 component model with periods P1 = 44.92 ± .06d, P2 = 70.37 ± .16d and semi-amplitudes r1 = 0.093...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
Odessa I. I. Mechnykov National University
2017-07-01
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Series: | Odessa Astronomical Publications |
Online Access: | http://oap.onu.edu.ua/article/view/105776 |