Spectroscopic monitoring of eclipsing binaries at Ondrejov observatory

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F25%3A00645205" target="_blank" >RIV/67985815:_____/25:00645205 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0375053" target="_blank" >https://hdl.handle.net/11104/0375053</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.31577/caosp.2025.55.3.462" target="_blank" >10.31577/caosp.2025.55.3.462</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Spectroscopic monitoring of eclipsing binaries at Ondrejov observatory

Popis výsledku v původním jazyce

To date, a large number of variable stars have been classified as eclipsing binaries. Large photometric surveys such as Kepler, TESS or Plato are finding thousands of new candidates. However, only a few have been studied in detail. Moreover, photometric data provide no information about the masses of stars, which is the key information about the system. Spectroscopic observations and radial-velocity measurements are required for this purpose. Therefore, ground-based spectroscopy is a useful supplementary source of data for large photometric surveys. Additionally, a few interesting phenomena can be discovered using radial velocity curves, which are hardly detectable on the light curve. Binary orbits could be significantly eccentric, the system could have an unusually low mass ratio, or it would not have to be binary at all. Here, we present some interesting systems observed using the OES spectrograph attached at the Perek 2-meter telescope in Ondrejov together with their light curves obtained by the TESS mission.

Název v anglickém jazyce

Spectroscopic monitoring of eclipsing binaries at Ondrejov observatory

Popis výsledku anglicky

To date, a large number of variable stars have been classified as eclipsing binaries. Large photometric surveys such as Kepler, TESS or Plato are finding thousands of new candidates. However, only a few have been studied in detail. Moreover, photometric data provide no information about the masses of stars, which is the key information about the system. Spectroscopic observations and radial-velocity measurements are required for this purpose. Therefore, ground-based spectroscopy is a useful supplementary source of data for large photometric surveys. Additionally, a few interesting phenomena can be discovered using radial velocity curves, which are hardly detectable on the light curve. Binary orbits could be significantly eccentric, the system could have an unusually low mass ratio, or it would not have to be binary at all. Here, we present some interesting systems observed using the OES spectrograph attached at the Perek 2-meter telescope in Ondrejov together with their light curves obtained by the TESS mission.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

<a href="/cs/project/LTT20015" target="_blank" >LTT20015: PLATOSpec pozemní podpora vesmírných misí PLATO a TESS - nový český spektrograf ve spolupráci s Evropskou jižní observatoří</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Contributions of the Astronomical Observatory Skalnaté Pleso

ISSN

1335-1842

e-ISSN

1336-0337

Svazek periodika

55

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

4

Strana od-do

462-465

Kód UT WoS článku

001508471700006

EID výsledku v databázi Scopus

2-s2.0-105005842589