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Long-Term Starspot Activity of the Eclipsing Variable System CG Cyg. / Kozhevnikova, A. V.; Alekseev, I. Yu.; Kozhevnikov, V. P. и др.
в: Astrophysics, Том 48, № 3, 01.07.2005, стр. 291-303.

Результаты исследований: Вклад в журнал › Статья › Рецензирование

Harvard

Kozhevnikova, AV, Alekseev, IY, Kozhevnikov, VP & Svechnikov, MA 2005, 'Long-Term Starspot Activity of the Eclipsing Variable System CG Cyg', Astrophysics, Том. 48, № 3, стр. 291-303. https://doi.org/10.1007/s10511-005-0028-1

APA

Kozhevnikova, A. V., Alekseev, I. Y., Kozhevnikov, V. P., & Svechnikov, M. A. (2005). Long-Term Starspot Activity of the Eclipsing Variable System CG Cyg. Astrophysics, 48(3), 291-303. https://doi.org/10.1007/s10511-005-0028-1

Vancouver

Kozhevnikova AV, Alekseev IY, Kozhevnikov VP, Svechnikov MA. Long-Term Starspot Activity of the Eclipsing Variable System CG Cyg. Astrophysics. 2005 июль 1;48(3):291-303. doi: 10.1007/s10511-005-0028-1

Author

Kozhevnikova, A. V. ; Alekseev, I. Yu. ; Kozhevnikov, V. P. и др. / Long-Term Starspot Activity of the Eclipsing Variable System CG Cyg. в: Astrophysics. 2005 ; Том 48, № 3. стр. 291-303.

BibTeX

@article{da14dd733ce7479c9073271a34d513d4,
title = "Long-Term Starspot Activity of the Eclipsing Variable System CG Cyg",
abstract = "Photometric observations of the eclipsing variable system CG Cyg (G9+K3, P=0 d .63), which belongs to a group of short-period, chromospherically active RS CVn type stars with the same type of activity as the sun, have been made over two seasons in 2003 and 2004. The spotting of the star{\textquoteright}s surface is modelled using the original observations together with photometric data published since 1965. In every season the spots were concentrated near the equator and covered up to 18% of the star{\textquoteright}s entire surface, while the temperature difference between the quiescent photosphere and the spotted regions was 2100 K. Cyclical variations in the total area and average latitude of the spots, as well as flip-flop of the active longitudes, are suspected. Latitudinal drift of the spots during a cycle and differential rotation of the star are discovered. The following orbital elements are obtained: M1 = 0.93 M⊙, M2 = 0.81 M⊙, R1 = 1.01 R⊙, and R2 = 0.82 R⊙.",
author = "Kozhevnikova, {A. V.} and Alekseev, {I. Yu.} and Kozhevnikov, {V. P.} and Svechnikov, {M. A.}",
note = "We thank our colleagues at the Crimean Astrophysical Observatory, R. E. Gershberg and S. I. Plachinde, for valuable comments. I. Yu. Alekseev thanks the Ukrainian State Foundation for Basic Development for partial support through grant No. 02.07/00300. We thank Drs. D. Marchev and V. Ogloza for providing us with data.",
year = "2005",
month = jul,
day = "1",
doi = "10.1007/s10511-005-0028-1",
language = "English",
volume = "48",
pages = "291--303",
journal = "Astrophysics",
issn = "0571-7256",
publisher = "Springer",
number = "3",

}

RIS

TY - JOUR

T1 - Long-Term Starspot Activity of the Eclipsing Variable System CG Cyg

AU - Kozhevnikova, A. V.

AU - Alekseev, I. Yu.

AU - Kozhevnikov, V. P.

AU - Svechnikov, M. A.

N1 - We thank our colleagues at the Crimean Astrophysical Observatory, R. E. Gershberg and S. I. Plachinde, for valuable comments. I. Yu. Alekseev thanks the Ukrainian State Foundation for Basic Development for partial support through grant No. 02.07/00300. We thank Drs. D. Marchev and V. Ogloza for providing us with data.

PY - 2005/7/1

Y1 - 2005/7/1

N2 - Photometric observations of the eclipsing variable system CG Cyg (G9+K3, P=0 d .63), which belongs to a group of short-period, chromospherically active RS CVn type stars with the same type of activity as the sun, have been made over two seasons in 2003 and 2004. The spotting of the star’s surface is modelled using the original observations together with photometric data published since 1965. In every season the spots were concentrated near the equator and covered up to 18% of the star’s entire surface, while the temperature difference between the quiescent photosphere and the spotted regions was 2100 K. Cyclical variations in the total area and average latitude of the spots, as well as flip-flop of the active longitudes, are suspected. Latitudinal drift of the spots during a cycle and differential rotation of the star are discovered. The following orbital elements are obtained: M1 = 0.93 M⊙, M2 = 0.81 M⊙, R1 = 1.01 R⊙, and R2 = 0.82 R⊙.

AB - Photometric observations of the eclipsing variable system CG Cyg (G9+K3, P=0 d .63), which belongs to a group of short-period, chromospherically active RS CVn type stars with the same type of activity as the sun, have been made over two seasons in 2003 and 2004. The spotting of the star’s surface is modelled using the original observations together with photometric data published since 1965. In every season the spots were concentrated near the equator and covered up to 18% of the star’s entire surface, while the temperature difference between the quiescent photosphere and the spotted regions was 2100 K. Cyclical variations in the total area and average latitude of the spots, as well as flip-flop of the active longitudes, are suspected. Latitudinal drift of the spots during a cycle and differential rotation of the star are discovered. The following orbital elements are obtained: M1 = 0.93 M⊙, M2 = 0.81 M⊙, R1 = 1.01 R⊙, and R2 = 0.82 R⊙.

UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=000231881500002

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=25144485041

U2 - 10.1007/s10511-005-0028-1

DO - 10.1007/s10511-005-0028-1

M3 - Article

VL - 48

SP - 291

EP - 303

JO - Astrophysics

JF - Astrophysics

SN - 0571-7256

IS - 3

ER -

ID: 39728035