Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-08-26
Astronomy and Astrophysics
Astrophysics
16 pages LaTex, (MNRAS style), including 6 Tables and 10 figures, accepted for publication in the MNRAS, also available at f
Scientific paper
10.1046/j.1365-8711.1999.02098.x
Homogeneous photometric data (Johnson V, B-V, V-K, Cousins V-I and Stromgren b-y), radial velocities, and abundances of Fe, O, Mg, Si, Ca, Ti, Cr and Ni are presented for 99 stars with high precision parallaxes measured by the Hipparcos satellite. These data have been previously used to assist the derivation of accurate distances and ages of galactic globular clusters. Magnitudes and colours for the programme stars were obtained combining and standardizing carefully selected literature data available in the Simbad data-base and V and B-V values measured by the Hipparcos/Tycho mission. Comparison of colours for our targets suggests: (i) ground-based and Tycho B-V's agree well for colours bluer than 0.75 mag, but have a lot of scatter for redder colours; (ii) the Hipparcos V-I colours have a very large scatter and a zero point offset of +0.02 mag compared to the literature values. The programme stars have metal abundances in the range -2.5<[Fe/H]<0.2. The spectroscopic observational data set consists of high dispersion (15,000
Carretta Eugenio
Clementini Gisella
Gratton Raffaele G.
Sneden Chistopher
No associations
LandOfFree
Homogeneous photometry and metal abundances for a large sample of Hipparcos metal-poor stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Homogeneous photometry and metal abundances for a large sample of Hipparcos metal-poor stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Homogeneous photometry and metal abundances for a large sample of Hipparcos metal-poor stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-490240