Please use this identifier to cite or link to this item: http://dspace.onu.edu.ua:8080/handle/123456789/4786
Title: THE PLANETARY HOST RED GIANT HD47536 - CHEMICAL COMPOSITION AND SIGNS OF ACCRETION
Authors: Yushchenko, A. V.
Rittipruk, P.
Yushchenko, V. A.
Kang, Y.-W.
Citation: Odessa Astronomical Publications
Issue Date: 2013
Publisher: Astroprint
Keywords: stars
late-type - stars
individual
HD 47536 – stars
abundances – stars
planetary systems
Series/Report no.: ;vol. 26, issue 1, p. 131-136
Abstract: The spectra of HD47536 with resolving power R=30,000 and signal to noise ratio near 100 was obtained at 1.5 meter SMART telescope of CTIO, Chile. The analysis of chemical composition allowed to find the abundances of 33 chemical elements including thorium. The star belongs to halo or intermediate population, it’s metallicity is [Fe/H]=-0.58 0.11, the r- and s-processes elements are overabundant with respect to iron. The overabundance of thorium with respect to iron is +0.72 dex. The abundance pattern exhibits the clear signs of accretion. The star is a host of two planets, that is why it can be the result of the accretion in planetary system or the accretion of interstellar gas. The signs of accretion are clearly detected and prevent the determination of stellar age.
Description: Odessa Astronomical publications / Одесская астроном. обсерватория . – Одесса : Астропринт, 2013 . – Vol.26/1.
URI: http://dspace.onu.edu.ua:8080/handle/123456789/4786
Appears in Collections:Odessa Astronomical Publications

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