Ondrejov Echelle Spectrograph, Ground Based Support Facility for Exoplanet Missions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F20%3A00534146" target="_blank" >RIV/67985815:_____/20:00534146 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1088/1538-3873/ab6752" target="_blank" >https://doi.org/10.1088/1538-3873/ab6752</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1538-3873/ab6752" target="_blank" >10.1088/1538-3873/ab6752</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Ondrejov Echelle Spectrograph, Ground Based Support Facility for Exoplanet Missions

Popis výsledku v původním jazyce

Fulfilling the goals of space-based exoplanetary transit surveys, like Kepler and TESS, is impossible without ground-based spectroscopic follow-up. In particular, the first-step vetting of candidates could easily necessitate several hundreds of hours of telescope time-an area where 2 m class telescopes can play a crucial role. Here, we describe the results from the science verification of the Ondrejov Echelle Spectrograph (OES) installed on the 2 m Perek telescope. We discuss the performance of the instrument as well as its suitability for the study of exoplanetary candidates from space-based transit surveys. In spite of being located at an average European observing site, and originally being conceived for the study of variable stars, OES can prove to be an important instrument for the exoplanetary community in the TESS and PLATO era-reaching accuracies of a few tens of m s(-1) with reasonable sampling and signal-to-noise for sources down to V similar to 13. The stability of OES is demonstrated via long-term monitoring of the standard star HD 109358, while its validity for exoplanetary candidate verification is shown using three K2 candidates EPIC 210925707, EPIC 206135267 and EPIC 211993818, to reveal that they are false positive detections.

Název v anglickém jazyce

Ondrejov Echelle Spectrograph, Ground Based Support Facility for Exoplanet Missions

Popis výsledku anglicky

Fulfilling the goals of space-based exoplanetary transit surveys, like Kepler and TESS, is impossible without ground-based spectroscopic follow-up. In particular, the first-step vetting of candidates could easily necessitate several hundreds of hours of telescope time-an area where 2 m class telescopes can play a crucial role. Here, we describe the results from the science verification of the Ondrejov Echelle Spectrograph (OES) installed on the 2 m Perek telescope. We discuss the performance of the instrument as well as its suitability for the study of exoplanetary candidates from space-based transit surveys. In spite of being located at an average European observing site, and originally being conceived for the study of variable stars, OES can prove to be an important instrument for the exoplanetary community in the TESS and PLATO era-reaching accuracies of a few tens of m s(-1) with reasonable sampling and signal-to-noise for sources down to V similar to 13. The stability of OES is demonstrated via long-term monitoring of the standard star HD 109358, while its validity for exoplanetary candidate verification is shown using three K2 candidates EPIC 210925707, EPIC 206135267 and EPIC 211993818, to reveal that they are false positive detections.

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/GC17-01752J" target="_blank" >GC17-01752J: Program Tautenburgu a Ondřejova pro měření radiálních rychlostí tranzitujících planetárních systémů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Publications of the Astronomical Society of the Pacific

ISSN

1538-3873

e-ISSN

—

Svazek periodika

132

Číslo periodika v rámci svazku

1009

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

035002

Kód UT WoS článku

000520184500001

EID výsledku v databázi Scopus

2-s2.0-85079616498