The database contains as much as possible and the catalog is where we select out to just keep the useful. This means the catalog contains a list of stars with disk measurements where available (as this is better than the simulated values from the HOSTS model since this is what limits us in sensitivity), multiplicity … Continued
Database vs Catalog
Some sources are already decided e.g. where possible we will take stellar data from SIMBAD, exoplanet data from ExoMercat.. For that we are currently looking into useful catalogs e.g. The TESS Input Catalog (TIC) should be complete for all sources within 20 pc, as long as the objects exist in Gaia DR2 and/or 2MASS. This … Continued
Most recent presentation can be found here.
The target list currently used for yield simulations is described in the first of the upcoming serie of LIFE papers currently available at arxiv. The actual list can be viewed here.
The cutoff at 20pc is somewhat arbitrary and we can think about increasing it by 5pc or so but when we look at the yield results in LIFE paper 1 the selected stars in the optimization procedures barely go out to 15pc. This is because we are sensitivity limited due to local zodi and exozodi, … Continued
The included objects are: stars within 20pc from SIMBAD planets around those stars from ExoMercat and disks around the stars from …(TBD) The included parameters are shown here.
Only if something important is missing. For example if some of our best candidate stars have no disk measurements then we might make an observation proposal for them.
Collection of relevant data to optimize target prioritization and ultimately selection for both the LIFE observation (search and characterization phase). Prior to the observation the extraction of target catalogs depending on different scenarios will allow us to make yield estimations to show the viability of the mission. The database is for the main science case … Continued
It will be a relational database following IVOA guidelines. First it will only be accessible via the VO tools (pyvo, TOPCAT,…) and only in the end phase we will look into making it nice and user friendly accessible in a web application or GUI.
From databases (if possible VO compatible) otherwise papers and in the last instance we will calculate the needed data ourselves.