Light fluctuation and changes in the orbital period of the close binary 44 i Boo

Autor:	Wang Gang, Guo Zi-he, Liu Xue-fu, Jia Gui-shan
Rok vydání:	1984
Předmět:	Physics Stars Photometry (astronomy) Space and Planetary Science Binary number Astronomy Astronomy and Astrophysics Astrophysics Orbital period Light curve
Zdroj:	Chinese Astronomy and Astrophysics. 8:126-128
ISSN:	0275-1062
DOI:	10.1016/0275-1062(84)90039-0
Popis:	We present the result of UBV photometry and narrow-band photoelectric photometry of 44 i Boo made in January 1980 and March 1982, and we analysed the change in the orbital period of the binary over the past 65 years. We think that the fluctuations in the light curve are related to surface activities (cool and hot spots) on the stars and gas motion between the two stars, that the slowly-changing term in the orbital period is due to the light-time effect, while sudden changes in the period are related to mass ejection and eruptions on the stars.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::beb74498c1db84f161715d8ae31ba212 https://doi.org/10.1016/0275-1062(84)90039-0 Zobrazit plný text záznamu