NLTE abundance corrections for 28 lines of Ca I and 4 lines of Ca II in the MARCS model atmospheres.

NLTE method was treated by Mashonkina+ (2007, A&A, 461, 261). Updated in Mashonkina+ (2017, A&A, 605, A53) by including Ca I + H I collisions, as calculated by Mitrushchenkov+ (2017, J. Chem. Phys., 146, 014304), and in Neretina+ (2020, Astron. Lett. 46, 621) by including Ca II + H I collisions, as calculated by Belyaev+ (2019, Phys. Rev., A100, id.062710). 

For Ca I, grid I was computed for
Teff = 5000 to 6500 K, step 250 K,
log g = 2.5 to 5.0, step 0.5,
[Fe/H] = -2.0, -2.5, -3.0, -4.0
[Ca/Fe] = 0.4.
The data are available in
Ca1_NLTE_corrections_5000-6500_g2.5-5.0.dat

For Ca II, grid I was computed for
Teff = 5000 to 6500~K, with a 250 K step, 
log g = 3.0 to 5.0, with a 0.5 step, 
[Fe/H] = -2.0, -2.5, -3.0, -4.0
[Ca/Fe] = 0.4: 
and
Teff = 5000, 5270, 5500
log g = 2.5
[Fe/H] = -2.0, -2.5, -3.0, -4.0
[Ca/Fe] = 0.4. 
The data are available in
Ca2_NLTE_corrections_5000-6500_g2.5-4.5.dat

For Ca I, grid II was computed for
Teff = 4000 K to 5000~K, step 250 K,
log g = 0.5 to 2.5, step 0.5,
[Fe/H] = 0, -1.0, -2.0, -2.5, -3.0, -3.5, -4.0. 
For [Fe/H] = -3.5, we use the model atmospheres obtained by an interpolation with the FORTRAN-based routine written by Thomas Masseron (http://marcs.astro.uu.se).
[Ca/Fe] = 0.0 for [Fe/H] = 0.0 and [Ca/Fe] = 0.4 for [Fe/H] <= -1.0.
The data are available in
Ca1_NLTE_corrections_4000-5000_g0.5-2.5.dat

For Ca II, grid II was computed for
Teff = 4000 to 4750 K, with a step of 250 K,
log g = 0.5 to 2.5, step 0.5,
[Fe/H] = -2.0 to -4.0, step 0.5,
and
Teff = 5000 K
log g = 0.5 to 2.5, step 0.5,
[Fe/H] = -2.0, -2.5, -3.0, -4.0.
The data are available in
Ca2_NLTE_corrections_4000-5000_g0.5-2.5.dat

The files have similar structure and include the NLTE equivalent widths (mA, 1st string for each metallicity) and abundance corrections (NLTE - LTE, dex, 2nd string). The NLTE corrections are not provided for lines with EW(LTE) < 3 mA.

When using some of these data in your research, cite please
Mashonkina, Sitnova, Belyaev, 2017, A&A, 605, A53 (Ca I)
Neretina, Mashonkina, Sitnova, 2020, Astron. Lett. 46, 621 (Ca II)
and http://www.inasan.ru/~lima/pristine