Title
VizieR Online Data Catalog: Stellar parameters of early M dwarfs (Maldonado+, 2015)
Journal
VizieR Online Data Catalog
Date Issued
2015
Author(s)
Barbieri, M.
Esposito, M.
Gonzalez Hernandez, J. I.
Perger, M.
Piotto, G.
Rebolo, R.
Ribas, I.
Shkolnik, E.
Southworth, J.
Suarez Mascareno, A.
DOI
10.26093/cds/vizier.35770132
Abstract
File table2 provides the coefficients of our feature ratio-temperature relations. It gives information about the features involved in the ratio (central wavelength and width), the coefficients of the best-fitting relationships, their functional form, and the corresponding standard deviation of the effective temperature calibration. <P />File table4 gives the coefficients of our spectral-type calibrations. They are expressed as third order polynomial fits. Spectral types are given in numerical form, i.e. with value 0.0 for M0, 0.5 for M0.5 and so on. A negative value implies that the star is late K-dwarf, being the index value for K7 equal to -1.0. <P />File table6 gives the coefficients of our metallicity calibrations. They have the analytical form: [Fe/H]=(A*EW)+(B*r)+C, where EW is the pseudo EW of a feature showing a strong-metallicity correlation, r is a temperature-sensitive ratio of features, and A, B, C are independent coefficients. <P />(5 data files). <P />