Stellar Parameters and Chemical Abundances of G Giants

Stellar Parameters and Elemental Abundances of Late - G Giants ∗ †

The properties of 322 intermediate-mass late-G giants (comprising 10 planet-host stars) selected as the targets of Okayama Planet Search Program, many of which are red-clump giants, were comprehensively investigated by establishing their various stellar parameters (atmospheric parameters including turbulent velocity fields, metallicity, luminosity, mass, age, projected rotational velocity, etc....

Parameters and Elemental Abundances of Late - G Giants ∗ †

The properties of 322 intermediate-mass late-G giants (comprising 10 planet-host stars) selected as the targets of Okayama Planet Search Program, many of which are red-clump giants, were comprehensively investigated by establishing their various stellar parameters (atmospheric parameters including turbulent velocity fields, metallicity, luminosity, mass, age, projected rotational velocity, etc....

Towards a fundamental calibration of stellar parameters of A, F, G, K dwarfs and giants

I report on the implementation of the empirical surface brightness technique using the near-infrared Johnson broadband (V − K) colour as suitable sampling observable aimed at providing accurate effective temperatures of 537 dwarfs and giants of A-F-G-K spectral-type selected for a flux calibration of the Infrared Space Observatory (ISO). The surface brightness-colour correlation is carefully ca...

ASTRONOMY AND ASTROPHYSICS Chemical abundances in seven red giants of NGC 2360 and

Chemical abundances in seven red giants of NGC 2360 and NGC 2447 ? , ? ?

Chemical abundances of about fifteen elements from oxygen to europium are measured in seven red giants of the two open clusters NGC 2360 and NGC 2447. The effective temperatures of the giants are determined spectroscopically by taking advantage of their known masses (∼ 2M in NGC 2360 and ∼ 3M in NGC 2447) and bolometric magnitudes. The average iron abundances we obtain for the two clusters are ...