Filters
cris logo
-
New search Filters
Select from list
Displayed from Show more
You have reached the maximum number of displayed search results.
All results displayed
No results are available for the search performed
Displayed from
You have reached the maximum number of displayed search results.
All results displayed
Loading results
Obtaining statistical data

International projects source: SICRIS

Stellar chemistry from photometric narrow-band imaging

Edit
Researchers (1)
no. Code Name and surname Research area Role Period No. of publications
1.  08000  PhD Tomaž Zwitter  Physics  Head  2019 - 2022  632 
Organisations (1)
no. Code Research organisation City Registration number No. of publications
1.  1554  University of Ljubljana, Faculty of Mathematics and Physics  Ljubljana  1627007  34,135 
Abstract
Strong metallic absorption lines can absorb much of the flux in a stellar atmosphere, so its metallic content can be inferred from a contrast between fluxes in narrow-band images centered on and off these lines. This classical idea has been hampered by unknown values of stellar parameters which also influence line strengths. But Gaia results published last spring accurately determine stellar temperatures and luminosities, though their chemistry remains largely unknown. This project is a pilot observational study to check if narrow-band photometry can be used to recover chemistry of a majority of stars observed by Gaia across the parameter space and across the Galaxy, of PLATO exoplanet hosts and of the planned GaiaNIR mission targets. This study is aimed to make a critical improvement of results of the on-going Gaia mission. Its results will be important also for preparation of target lists and for interpretation of results of future missions PLATO and GaiaNIR (a successor of Gaia) for which no on-board spectroscopy is planned.
Confirmation required
Views history
Favourite