ProjectXrayCensusVCA – Complete X-ray census of the Volans-Carina stellar association

Basic data

Acronym:
XrayCensusVCA
Title:
Complete X-ray census of the Volans-Carina stellar association
Duration:
01/01/2025 to 31/12/2026
Abstract / short description:
Among the kinematically well-defined groups of stars, the Volans-Carina association occupies a unique position in terms of distance (~85 pc) and age (~90 million years), namely between groups that are young but distant and therefore difficult to observe and those that are closer but also older. The complete X-ray survey of the young stellar group Volans-Carina, which will be obtained using an XMM-Newton/AO23 "Large Program", will reveal for the first time the full range of coronal emission at a critical age at the end of the pre-main sequence down to spectral type M.
The primary goal in analyzing the XMM-Newton data that form the basis of this funding proposal is to measure the X-ray luminosities for all stars in the Volans-Carina group that have not been detected with ROSAT or eROSITA. This will address the following topics: (1) using X-ray detection as an independent criterion for assigning individual stars to the young association; (2) establishing the X-ray luminosity function and studying it in the context of older field stars that are already being characterized in an ongoing project in the applicant's working group, with a focus on low-mass stars; (3) constructing a catalog of X-ray and UV properties of all members of the Volans-Carina association, for further use in studying the effects on planetary atmospheres, among other things.

Involved staff

Managers

Institute of Astronomy and Astrophysics (IAAT)
Department of Physics, Faculty of Science

Other staff

Institute of Astronomy and Astrophysics (IAAT)
Department of Physics, Faculty of Science

Local organizational units

Institute of Astronomy and Astrophysics (IAAT)
Department of Physics
Faculty of Science

Funders

Köln, Nordrhein-Westfalen, Germany
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