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Contenu archivé le 2024-05-30

Eclipsing binary stars as cutting edge laboratories for astrophysics of stellar<br/>structure, stellar evolution and planet formation

Objectif

Spectroscopic binary stars (SB2s) and in particular spectroscopic eclipsing binaries are one of the most useful objects in astrophysics. Their photometric and spectroscopic observations allow one to determine basic parameters of stars and carry out a wide range of tests of stellar structure, evolution and dynamics. Perhaps somewhat surprisingly, they can also contribute to our understanding of the formation and evolution of (extrasolar) planets. We will study eclipsing binary stars by combining the classic - stellar astronomy - and the modern - extrasolar planets - subjects into a cutting edge project.

We propose to search for and subsequently characterize circumbinary planets around ~350 eclipsing SB2s using our own novel cutting edge radial velocity technique for binary stars and a modern version of the photometry based eclipse timing of eclipsing binary stars employing 0.5-m robotic telescopes. We will also derive basic parameters of up to ~700 stars (~350 binaries) with an unprecedented precision. In particular for about 50% of our sample we expect to deliver masses of the components with an accuracy ~10-100 times better than the current state of the art.

Our project will provide unique constraints for the theories of planet formation and evolution and an unprecedented in quality set of the basic parameters of stars to test the theories of the stellar structure and evolution.

Champ scientifique (EuroSciVoc)

Programme(s)

Thème(s)

Appel à propositions

ERC-2010-StG_20091028
Voir d’autres projets de cet appel

Régime de financement

ERC-SG - ERC Starting Grant

Institution d’accueil

CENTRUM ASTRONOMICZNE IM. MIKOLAJA KOPERNIKA POLSKIEJ AKADEMII NAUK
Contribution de l’UE
€ 1 500 000,00
Adresse
Bartycka, 18
00-716 Warszawa
Pologne
Région
Makroregion województwo mazowieckie Warszawski stołeczny Miasto Warszawa
Type d’activité
Research Organisations
Liens
Coût total
Aucune donnée

Bénéficiaires (1)