矮星 V772 Her 的光斑活动

IF 1.1 4区 物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS
I. Yu. Alekseev, A. V. Kozhevnikova, V. P. Kozhevnikov
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Spot Activity of the Dwarf Star V772 Her

Spot Activity of the Dwarf Star V772 Her

We consider photometric behavior of the spotted primary in V772 Her, an eclipsing system of dwarf stars (G0V + M5V), on the base of many-year multicolor photoelectric observations. The combined photometric effect due to spots can be as large as \({0}_{.}^{{\text{m}}}\)19. Our modeling demonstrated that the area of spotted regions can reach 13% of the star’s total surface area. Spots are cooler than the undisturbed photosphere by 1800 K and are located at low latitudes.

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来源期刊
Astronomy Reports
Astronomy Reports 地学天文-天文与天体物理
CiteScore
1.40
自引率
20.00%
发文量
57
审稿时长
6-12 weeks
期刊介绍: Astronomy Reports is an international peer reviewed journal that publishes original papers on astronomical topics, including theoretical and observational astrophysics, physics of the Sun, planetary astrophysics, radio astronomy, stellar astronomy, celestial mechanics, and astronomy methods and instrumentation.
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