Flare stars in nearby Galactic open clusters based on TESS data

J 2021

Flare stars in nearby Galactic open clusters based on TESS data

MARYEVA, O., K. BICZ, Caiyun XIA, M. BARATELLA, P. ČECHVALA et. al.

Základní údaje

Originální název

Flare stars in nearby Galactic open clusters based on TESS data

Autoři

MARYEVA, O. (garant), K. BICZ, Caiyun XIA (703 Slovensko, domácí), M. BARATELLA, P. ČECHVALA a K. VIDA

Vydání

Contributions of the Astronomical Observatory Skalnaté Pleso, Astronomical Institute, Slovak Academy of Sciences, 2021, 1335-1842

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Slovensko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 0.438

Kód RIV

RIV/00216224:14310/21:00121490

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.31577/caosp.2021.51.1.78

UT WoS

000614521100007

Klíčová slova anglicky

Galaxy: open clusters and associations: general; stars: flare; stars: activity; space mission: TESS

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 28. 4. 2021 11:44, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

The study is devoted to search for flare stars among confirmed members of Galactic open clusters using high-cadence photometry from TESS mission. We analyzed 957 high-cadence light curves of members from 136 open clusters. As a result, 56 flare stars were found, among them 8 hot B-A type objects. Of all flares, 63 % were detected in sample of cool stars (T-eff < 5000 K), and 29 % - in stars of spectral type G, while 23 % in K-type stars and approximately 34% of all detected flares are in M-type stars. Using the FLATW'RM (FLAre deTection With Ransac Method) flare finding algorithm, we estimated parameters of flares and rotation period of detected flare stars. The flare with the largest amplitude appears on the M3 type EQ Cha star. Statistical analysis did not reveal any direct correlation between ages, rotation periods and flaring activity.

Citovat

MARYEVA, O., K. BICZ, Caiyun XIA, M. BARATELLA, P. ČECHVALA a K. VIDA. Flare stars in nearby Galactic open clusters based on TESS data. Contributions of the Astronomical Observatory Skalnaté Pleso. Astronomical Institute, Slovak Academy of Sciences, 2021, roč. 51, č. 1, s. 78-97. ISSN 1335-1842. Dostupné z: https://dx.doi.org/10.31577/caosp.2021.51.1.78.

@article{1764017,
   author = {Maryeva, O. and Bicz, K. and Xia, Caiyun and Baratella, M. and Čechvala, P. and Vida, K.},
   article_number = {1},
   doi = {http://dx.doi.org/10.31577/caosp.2021.51.1.78},
   keywords = {Galaxy: open clusters and associations: general; stars: flare; stars: activity; space mission: TESS},
   language = {eng},
   issn = {1335-1842},
   journal = {Contributions of the Astronomical Observatory Skalnaté Pleso},
   title = {Flare stars in nearby Galactic open clusters based on TESS data},
   url = {https://doi.org/10.31577/caosp.2021.51.1.78},
   volume = {51},
   year = {2021}
}

TY  - JOUR
ID  - 1764017
AU  - Maryeva, O. - Bicz, K. - Xia, Caiyun - Baratella, M. - Čechvala, P. - Vida, K.
PY  - 2021
TI  - Flare stars in nearby Galactic open clusters based on TESS data
JF  - Contributions of the Astronomical Observatory Skalnaté Pleso
VL  - 51
IS  - 1
SP  - 78-97
EP  - 78-97
PB  - Astronomical Institute, Slovak Academy of Sciences
SN  - 13351842
KW  - Galaxy: open clusters and associations: general
KW  - stars: flare
KW  - stars: activity
KW  - space mission: TESS
UR  - https://doi.org/10.31577/caosp.2021.51.1.78
N2  - The study is devoted to search for flare stars among confirmed members of Galactic open clusters using high-cadence photometry from TESS mission. We analyzed 957 high-cadence light curves of members from 136 open clusters. As a result, 56 flare stars were found, among them 8 hot B-A type objects. Of all flares, 63 % were detected in sample of cool stars (T-eff < 5000 K), and 29 % - in stars of spectral type G, while 23 % in K-type stars and approximately 34% of all detected flares are in M-type stars. Using the FLATW'RM (FLAre deTection With Ransac Method) flare finding algorithm, we estimated parameters of flares and rotation period of detected flare stars. The flare with the largest amplitude appears on the M3 type EQ Cha star. Statistical analysis did not reveal any direct correlation between ages, rotation periods and flaring activity.
ER  -

MARYEVA, O., K. BICZ, Caiyun XIA, M. BARATELLA, P. ČECHVALA a K. VIDA. Flare stars in nearby Galactic open clusters based on TESS data. \textit{Contributions of the Astronomical Observatory Skalnaté Pleso}. Astronomical Institute, Slovak Academy of Sciences, 2021, roč.~51, č.~1, s.~78-97. ISSN~1335-1842. Dostupné z: https://dx.doi.org/10.31577/caosp.2021.51.1.78.

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