The old anticentre open cluster Berkeley 32: membership and fundamental parameters
نویسندگان
چکیده
منابع مشابه
The old anticentre open cluster Berkeley 32 : membership and fundamental parameters ⋆
We have obtained medium-low resolution spectroscopy and BV I CCD imaging of Berkeley 32, an old open cluster which lies in the anticentre direction. From the radial velocities of 48 stars in the cluster direction we found that 31 of them, in crucial evolutionary phases, are probable cluster members, with an average radial velocity of +106.7 (σ = 8.5) km s. From isochrone fitting to the colour m...
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Context. Measurements of lithium (Li) abundances in open clusters provide a unique tool for following the evolution of this element with age, metallicity, and stellar mass. In spite of the plethora of Li data already available, the behavior of Li in solar–type stars has so far been poorly understood. Aims. Using FLAMES/Giraffe on the VLT, we obtained spectra of 157 candidate members of the old,...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2006
ISSN: 0035-8711,1365-2966
DOI: 10.1111/j.1365-2966.2006.10118.x