Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983pazh....9..556a&link_type=abstract
(Pis'ma v Astronomicheskii Zhurnal, vol. 9, Sept. 1983, p. 556-558) Soviet Astronomy Letters (ISSN 0360-0327), vol. 9, Sept.-Oct
Astronomy and Astrophysics
Astronomy
2
Binary Stars, Light Curve, Stellar Spectrophotometry, X Ray Sources, Variable Stars, X Ray Stars
Scientific paper
The brightness of E2003+225 has been measured on 335 plates in the Moscow collection taken during 1962-1982. The photometric behavior shows parallels with AM Her and MV Lyr. No prolonged inactive states have been found. No single period P can fit all the measurements; a search in the range P = 0.152-0.157 days yields different possible values for each of four observing seasons. E2003+225 is the second AM Her-type binary system having P greater than 3 hours.
Andronov Ivan Leonidovich
Yavorskij Yu. B.
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