Long-term photographic photometry of TT ARIETIS

Details Long-term photographic photometry of TT ARIETIS Long-term photographic photometry of TT ARIETIS

Feb 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984obs...104....1h&link_type=abstract

The Observatory, vol. 104, p. 1-5 (1984)

Physics

25

Scientific paper

Systematic long-term photographic photometry of TT Ari, based on results of measurements on 717 blue-sensitive plates taken in 1928 - 1982, yields the following main results: (1) the long-term optical behaviour of TT Ari is characterized by high and low (active and inactive) states, of which the high is the more usual, (2) no periodicity was found in the data for the 1 - 5000-day range and (3) no significant secular brightness variations take place. The similarity with the long-term optical behaviour of AM Her is discussed.

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