J-band Red Giant Branch Tip Magnitudes for the Distance Indicator
  The tip of the red giant branch is one of the widely used distance
measurement methods for the relatively nearby galaxies where the bright
individual stars are resolved. Most of the earlier works have used the
Photometry in the I-band such as HST ACS/WFC F814W or F850LP for the RGB tip
method. Here we look into the RGB tip magnitudes in J-band such as HST WFC3/IR
F110W and JWST NIRCam/WF F115W for a wide range of age and metallicity. We find
that the J-band (HST WFC3/IR F110W and JWST NIRCam/WF F115W) RGB tip magnitudes
do not significantly change compared to that of the I-band (HST ACS/WFC F814W,
F850LP) for a wide range of metallicity at given age. Moreover, HST WFC3/IR
F110W RGB tip magnitudes stay constant within 0.005 magnitudes for stellar
populations with old ages (age > 5 Gyr) at given metallicity.
