Photometric variability of the young star DI Cep

Details Photometric variability of the young star DI Cep Photometric variability of the young star DI Cep

Feb 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004a%26at...23..185k&link_type=abstract

Astronomical and Astrophysical Transactions, vol. 23, Issue 2, p.185-195

Astronomy and Astrophysics

Astrophysics

4

Scientific paper

We analyse our new and our previously published optical photometric data on DI Cep, a classical T Tau star. We study the variability of optical brightness with different temporal and amplitude characteristics. On a long-term scale, DI Cep shows 14-19 year cycles of variations with a magnitude of amplitude from 0.1 to 0.5 in different cycles. We also found a period of 9.185 days in the variations in the U-V colour. Probably, this period is connected with the rotation of a hot spot on DI Cep.

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