Effective temperatures and surface gravities derived by the Cannon (DR14) results for sample stars. Open magenta squares indicate RHB/eAGB stars and green full squares indicate RGB stars as determined from photometry except for M 107 and M 71, for which the separation has been done from spectroscopic parameters only. The figure illustrates the potentiality of separating RGB and RHB/eAGB solely from the Cannon results.
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