Damiani, F.F.DamianiPrisinzano, L.L.PrisinzanoMicelaPancino, ElenaElenaPancino2020-09-172020-09-172014-05-01https://hdl.handle.net/20.500.13025/3991VizieR On-line Data Catalog J/A+A/566/A50. Originally published in 2014A&A...566A..50DA set of newly-defined spectral indices is presented for all stars in the field of the gamma Vel cluster, observed within the Gaia-ESO Survey. All indices are based exclusively on the spectral range 6440-6810 Angstroms, corresponding to the VLT/FLAMES Giraffe setup HR15N. Fundamental stellar parameters can be derived from these indices as explained in the paper. Stars with either high cluster membership probability, or/and SB2 binaries, are flagged. (2 data files).Clusters openStars fundamentalStars pre-main sequenceMK spectral classificationhttp://adsabs.harvard.edu/abs/2014yCat..35669050D2014yCat..35669050D