Teff, [Fe/H], and log(g) for exoplanet stars discovered after June 2018

[SCO]

Not all exoplanets are listed in the EXOFAST - Quadratic Limb Darkening database which is the easiest place to find the two coefficients used to characterize the star limb darkening for input into AstroImageJ.

https://astroutils.astronomy.osu.edu/exofast/limbdark.shtml

Although EXOFAST coordinates its database with Exoplanets.org, that site has stopped listing new exoplanets since June 2018.

In cases where a new exoplanet is not available from EXOFAST or Exoplanets.org, it is necessary to obtain the Teff, [Fe/H], and log(g) parameters for the star in order to find its limb darkening coefficients using EXOFAST.  

Where could I most easily find the Teff, [Fe/H], and log(g) values for the largest and most complete database of exoplanet stars discovered after June 2018?  Is the database available online?

[karenacollins]

I recommend starting with the values from the TIC catalog, which can be extracted from MAST, or maybe more easily from ExoFOP-TESS. Enter a TIC number or TOI number in the search box. Under stellar parameters, you will usual see one or more values for Teff and logg, but Fe/H is often not available unless spectroscopic values are available and posted. If Fe/H is not availaible, then the best you can do is use Fe/H = 0. If no values at all can be found, two options are to use 0.3 and 0.3 as the limb darkening coefficients, or use 0.3 for LD coefficient and let the other one fit.

Karen

[SCO]

Thanks Karen.

Ed