Triple Eccentric Systems V0345 Lac, YY Sgr, and DR Vul

J 2019

Triple Eccentric Systems V0345 Lac, YY Sgr, and DR Vul

WOLF, M., P. ZASCHE, H. KUCAKOVA, M. MASEK, K. HONKOVA et. al.

Basic information

Original name

Triple Eccentric Systems V0345 Lac, YY Sgr, and DR Vul

Authors

WOLF, M. (guarantor), P. ZASCHE, H. KUCAKOVA, M. MASEK, K. HONKOVA, J. JURYSEK, A. PASCHKE, L. SMELCER and Miloslav ZEJDA (203 Czech Republic, belonging to the institution)

Edition

Acta astronomica, Cracovie, Polska akademia nauk. Komitet atronomii, 2019, 0001-5237

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10308 Astronomy

Country of publisher

Poland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 2.063

RIV identification code

RIV/00216224:14310/19:00108231

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.32023/0001-5237/69.1.5

UT WoS

000464124900005

Keywords in English

binaries: eclipsing; Stars: fundamental parameters; Stars: individual: V0345 Lac; YY Sgr;and DR Vul

Abstract

V originále

We present more results of our long-term observational project to analyze the variations of the orbital period for early-type eccentric eclipsing binaries. About sixty new precise mid-eclipse times were measured or derived for three eclipsing binaries, namely V0345 Lac, YY Sgr, and DR Vul. Based on current O - C diagrams, we found in all cases that beside the typical apsidal motion the times of minima show additional cyclical changes likely caused by a third body orbiting the eclipsing pair. The new light curve solution of V0345 Lac results in a moderate orbital eccentricity (e = 0.26) of this binary. The periods of apsidal motion are 1580 yr, 295 yr, and 36 yr, respectively. The relativistic contributions to the total apsidal-motion rate are small for all three eccentric binaries - about 5-14%. The third-body orbital periods are relatively short: 24 yr, 19 yr and 66 yr, and the minimal masses of third bodies are: 2.0 M-circle dot, 0.8 M-circle dot, and 7.2 M-circle dot, respectively.

Links

GA16-01116S, research and development project

Name: Atmosféry a okolohvězdné prostředí magnetických horkých hvězd

Investor: Czech Science Foundation

Citovat

WOLF, M., P. ZASCHE, H. KUCAKOVA, M. MASEK, K. HONKOVA, J. JURYSEK, A. PASCHKE, L. SMELCER and Miloslav ZEJDA. Triple Eccentric Systems V0345 Lac, YY Sgr, and DR Vul. Acta astronomica. Cracovie: Polska akademia nauk. Komitet atronomii, 2019, vol. 69, No 1, p. 63-78. ISSN 0001-5237. Available from: https://dx.doi.org/10.32023/0001-5237/69.1.5.

@article{1642037,
   author = {Wolf, M. and Zasche, P. and Kucakova, H. and Masek, M. and Honkova, K. and Jurysek, J. and Paschke, A. and Smelcer, L. and Zejda, Miloslav},
   article_location = {Cracovie},
   article_number = {1},
   doi = {http://dx.doi.org/10.32023/0001-5237/69.1.5},
   keywords = {binaries: eclipsing; Stars: fundamental parameters; Stars: individual: V0345 Lac; YY Sgr;and DR Vul},
   language = {eng},
   issn = {0001-5237},
   journal = {Acta astronomica},
   title = {Triple Eccentric Systems V0345 Lac, YY Sgr, and DR Vul},
   url = {https://ui.adsabs.harvard.edu/abs/2019AcA....69...63W/abstract},
   volume = {69},
   year = {2019}
}

TY  - JOUR
ID  - 1642037
AU  - Wolf, M. - Zasche, P. - Kucakova, H. - Masek, M. - Honkova, K. - Jurysek, J. - Paschke, A. - Smelcer, L. - Zejda, Miloslav
PY  - 2019
TI  - Triple Eccentric Systems V0345 Lac, YY Sgr, and DR Vul
JF  - Acta astronomica
VL  - 69
IS  - 1
SP  - 63-78
EP  - 63-78
PB  - Polska akademia nauk. Komitet atronomii
SN  - 00015237
KW  - binaries: eclipsing
KW  - Stars: fundamental parameters
KW  - Stars: individual: V0345 Lac
KW  - YY Sgr;and DR Vul
UR  - https://ui.adsabs.harvard.edu/abs/2019AcA....69...63W/abstract
L2  - https://ui.adsabs.harvard.edu/abs/2019AcA....69...63W/abstract
N2  - We present more results of our long-term observational project to analyze the variations of the orbital period for early-type eccentric eclipsing binaries. About sixty new precise mid-eclipse times were measured or derived for three eclipsing binaries, namely V0345 Lac, YY Sgr, and DR Vul. Based on current O - C diagrams, we found in all cases that beside the typical apsidal motion the times of minima show additional cyclical changes likely caused by a third body orbiting the eclipsing pair. The new light curve solution of V0345 Lac results in a moderate orbital eccentricity (e = 0.26) of this binary. The periods of apsidal motion are 1580 yr, 295 yr, and 36 yr, respectively. The relativistic contributions to the total apsidal-motion rate are small for all three eccentric binaries - about 5-14%. The third-body orbital periods are relatively short: 24 yr, 19 yr and 66 yr, and the minimal masses of third bodies are: 2.0 M-circle dot, 0.8 M-circle dot, and 7.2 M-circle dot, respectively.
ER  -

WOLF, M., P. ZASCHE, H. KUCAKOVA, M. MASEK, K. HONKOVA, J. JURYSEK, A. PASCHKE, L. SMELCER and Miloslav ZEJDA. Triple Eccentric Systems V0345 Lac, YY Sgr, and DR Vul. \textit{Acta astronomica}. Cracovie: Polska akademia nauk. Komitet atronomii, 2019, vol.~69, No~1, p.~63-78. ISSN~0001-5237. Available from: https://dx.doi.org/10.32023/0001-5237/69.1.5.

Detailed Information on Publication Record