ABUNDANCES IN THE LOCAL REGION. I. G AND K GIANTS
نویسندگان
چکیده
منابع مشابه
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....
متن کاملParameters 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....
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چکیده ندارد.
15 صفحه اولLithium abundances in main-sequence F stars and sub-giants
The application to main-sequence stars of the rotation-induced mixing theory in the presence of μ-gradients leads to partial mixing in the lithium destruction region, not visible in the atmosphere. The induced lithium depletion becomes visible in the sub-giant phase as soon as the convective zone deepens enough. This may explain why the observed “ lithium dilution ” is smoother and the final di...
متن کاملThe incidence of mid-infrared excesses in G and K giants
Using photometric data from the 2MASS and GLIMPSE catalogues, I investigate the incidence of mid-infrared excesses (∼ 10 μm) of G and K stars of luminosity class III. In order to obtain a large sample size, stars are selected using a near-IR colour-magnitude diagram. Sources which are candidates for showing mid-IR excess are carefully examined and modelled to determined whether they are likely ...
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ژورنال
عنوان ژورنال: The Astronomical Journal
سال: 2015
ISSN: 1538-3881
DOI: 10.1088/0004-6256/150/3/88