Search Publications

The spectroscopic orbit of the K-giant binary γ Canis Minoris

Strassmeier, K. G.; Weber, M.; Pourbaix, D. +2 more

We have determined an improved orbit for the bright, evolved, double lined binary γ Canis Minoris. The system has an orbital period of 389.31 days and an eccentricity of 0.2586. We have revised the secondary to primary mass ratio to 0.987. The spectral types of the primary and secondary are K4 III and K1: III, respectively, and the components have…

Determining distances using asteroseismic methods

Serenelli, A. M.; Chaplin, W. J.; Miglio, A. +5 more

Asteroseismology has been extremely successful in determining the properties of stars in different evolutionary stages with a remarkable level of precision. However, to fully exploit its potential, robust methods for estimating stellar parameters are required and independent verification of the results is needed. In this talk, I present a new tech…

Comparison of the four catalogues by pairs, the Hipparcos, new Hipparcos, EOC-2 and IL, by using µ_δ for the common 1120 stars}

Cvetković, Z.; Damljanović, G.; Cvetković , Z.

We present comparison results of our Independent Latitude (IL) catalogue of µ_δ determinations for 1120 bright stars with the Hipparcos, new Hipparcos and Earth Orientation Catalogue (EOC-2) values. Also, we took into consideration the EOC3 and EOC4 (recent versions of EOC catalogues). Our µ_δ values are based on ze…

Relative astrometry and near-infrared differential photometry of nearby southern orbital binaries with adaptive optics

Cuypers, J.; Lampens, P.; Prieur, J. -L. +1 more