Determination of atomic abundances of solar-type stars

被引:0
作者
Malygin, M. G. [1 ]
Pavlenko, Ya. V. [2 ,3 ]
Jenkins, J. S. [3 ,4 ]
Jones, H. R. A. [3 ]
Ivanyuk, O. M. [2 ]
Pinfield, D. J. [3 ]
机构
[1] Taras Shevchenko Natl Univ Kyiv, Glushkova Ave,4, UA-03127 Kiev, Ukraine
[2] Main Astron Observ NAS Ukraine, UA-03680 Kiev, Ukraine
[3] Univ Hertfordshire, Ctr Astrophys Res, Hatfield AL10 9AB, Herts, England
[4] Univ Chile, Dept Astron, Santiago, Chile
来源
ADVANCES IN ASTRONOMY AND SPACE PHYSICS | 2012年 / 2卷 / 01期
关键词
stars: abundances; methods: numerical; methods: data analysis;
D O I
暂无
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We discuss the results of abundance determinations of the solar- type stars HD1835 and HD10700 using our new procedure. This procedure has the advantage of automated pipeline usage for large amounts of spectroscopic data, with minimal user input. It is based on the spectral synthesis method, where the best values are found with our own developed minimization technique. We reduce the number of free parameters in minimization space using thefit to the observed atomic iron lines. We calibrated our procedure usingfits to the observed solar spectrum. Then we determined abundances in two solar- type stars, namely the metal- deficient star HD10700 and the metal- rich star HD1835. We found good agreement with previously published results. Thus, we aim to use this procedure for the abundance determination of solar- type stars, particularly planet hosting stars, where the knowledge of abundances is crucial for our understanding of their evolution and formation processes.
引用
收藏
页码:20 / 22
页数:3
相关论文
共 10 条
[1]   ABUNDANCES OF THE ELEMENTS - METEORITIC AND SOLAR [J].
ANDERS, E ;
GREVESSE, N .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1989, 53 (01) :197-214
[2]  
GURTOVENKO EA, 1989, FRAUNHOFER SPECTRUM
[3]   ROTATIONAL VELOCITIES FOR M DWARFS [J].
Jenkins, J. S. ;
Ramsey, L. W. ;
Jones, H. R. A. ;
Pavlenko, Y. ;
Gallardo, J. ;
Barnes, J. R. ;
Pinfield, D. J. .
ASTROPHYSICAL JOURNAL, 2009, 704 (02) :975-988
[4]   VALD-2: Progress of the Vienna Atomic Line Data Base [J].
Kupka, F ;
Piskunov, N ;
Ryabchikova, TA ;
Stempels, HC ;
Weiss, WW .
ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1999, 138 (01) :119-133
[5]  
Kurucz R. L., 1984, NAT SOLAR OBSERVATOR
[6]  
Pavlenko Ya. V., 2012, MNRAS IN PRESS
[7]  
Pavlenko Ya. V., 2009, KINEMAT FIZ NEBESN, V25, P452
[8]   Model atmospheres of red giants [J].
Pavlenko, YV .
ASTRONOMY REPORTS, 2003, 47 (01) :59-67
[9]   Lithium lines in the spectra of M dwarfs: UX Tau C [J].
Pavlenko, YV .
ASTRONOMY REPORTS, 2000, 44 (04) :219-226
[10]  
Valenti J. A., APJS, V159, P141