2024
Apparent non-variable stars from the Kepler mission
PAUNZEN, Ernst, F. BINDER, A. CYNIBURK, M. N. DUFFEK, F. HABERHAUER et. al.Základní údaje
Originální název
Apparent non-variable stars from the Kepler mission
Autoři
PAUNZEN, Ernst (40 Rakousko, domácí), F. BINDER, A. CYNIBURK, M. N. DUFFEK, F. HABERHAUER, C. HEINREICHSBERGER, H. KOHLHOFER, L. KUESS, H. M. MAITZEN, T. SAALMANN, A. M. SCHANZ, S. SCHAUER, K. SCHMIDT, A. TOKAREVA a I. WIZANI
Vydání
Astronomy and Astrophysics, EDP Sciences, 2024, 0004-6361
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10308 Astronomy
Stát vydavatele
Francie
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 6.500 v roce 2022
Organizační jednotka
Přírodovědecká fakulta
UT WoS
001270377500012
Klíčová slova anglicky
methods: data analysis; catalogs; Hertzsprung-Russell and C-M diagrams; supernovae: general
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 7. 8. 2024 13:26, Mgr. Marie Šípková, DiS.
Anotace
V originále
Context. The analysis of non-variable stars is generally neglected in the literature. However, such objects are needed for many calibration processes and for testing pulsational models. The photometric time series of the Kepler satellite mission still stand as the most accurate data available today and are excellently suited to the search for non-variable stars. Aims. We analysed all long-cadence light curves for stars not reported as a variable so far from the Kepler satellite mission. Using the known characteristics and flaws of these data sets, we defined three different frequency ranges where we searched for non-variability. Methods. We used the Lomb–Scargle periodogram and the false-alarm probability (FAP) to analyse the cleaned data sets of 138 451 light curves. We then used log FAP ≥ −2 to define a star as ‘non-variable’ in the ranges below 0.1 c/d, 0.1 to 2.0 c/d, and 2.0 to 25.0 c/d, respectively. Furthermore, we also calculated the standard deviation of the mean light curve to obtain another parameter. Results. In total, we found 14 154 stars that fulfil the set criteria. These objects are mostly cooler than the 7000 K populating the whole main sequence (MS) to the red giant branch (RGB).