Project description
Investigating fundamental stellar parameters
Advances in stellar physics and ground-based telescopes, as well as numerous space missions, have facilitated the study of the interior structures and the environments of stars. The EU-funded ISSP project will measure the angular diameters of about 1 000 stars of magnitude 8. This survey offers a primary source of information on a large sample of stars all over the Hertzsprung-Russell diagram. The project will also provide new limb darkening measurements and use detailed imaging techniques to characterise the surface of about 100 stars. These data will allow the development of new surface brightness-colour relations that could prove useful for future space missions, such as PLATO and ARIEL.
Objective
Fundamental stellar parameters are the primary data required for an in-depth understanding of stars, their interiors, and their environments. With the progress of stellar physics and the prospects of ground facilities or space missions, it is critical to improve the accuracy, and quantity of such data. The development of exoplanet and asteroseismology domains is demanding direct data to eliminate any bias in the parameters. And finally, the differences between methods for determining the Hubble constant is motivating new and precise direct determination of distances on the primary candles of the cosmic scales. Many methods like asteroseismology, photometric transits of exoplanets, radial velocities, or Surface Brightness Colour (SBC) relations are linked to the stellar radius. Usually estimated through models, its determination by coupling an optical interferometric measurement of the angular diameter and, for example, a Gaia parallax, is the best way to avoid any model dependence. Furthermore, characterizing any activity (limb darkening, convection, rotation, spots, or binarity) is also mandatory, both for bias removal and for the required progress on stellar physics.
Through an ambitious and homogenous survey of the angular diameters of a thousand stars as faint as magnitude 8 in the visible and as small as 0.2 milliseconds of arc, my project is built to address key questions about the relation between planets and stars and to offer to the broader community a unique and primary source of direct information on a representative and large sample of stars all over the HR diagram. A few hundred of direct measurements of limb darkening will be accessible, and, for about 100 stars, activity characterization with a more detailed surface imaging will be possible. These data will also permit the development of new unbiased SBC relations to serve the faint targets of space missions like PLATO or ARIEL in the future and the distance scale within the Araucaria project.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
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Keywords
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Project’s keywords as indicated by the project coordinator. Not to be confused with the EuroSciVoc taxonomy (Fields of science)
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC)
MAIN PROGRAMME
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Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
ERC-ADG - Advanced Grant
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Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
(opens in new window) ERC-2020-ADG
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Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.
06304 Nice
France
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.