Condensation temperature trends among stars with planets

被引：16

作者：

Gonzalez, G ^{[1
]}

机构：

[1] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2006年 / 367卷 / 01期

关键词：

sun : abundances; stars : abundances;

D O I：

10.1111/j.1745-3933.2005.00136.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Results from detailed spectroscopic analyses of stars hosting massive planets are employed to search for trends between abundances and condensation temperatures. The elements C, S, Na, Mg, Al, Ca, Sc, Ti, V, Cr, Mn, Fe, Ni and Zn are included in the analysis of 64 stars with planets and 33 comparison stars. No significant trends are evident in the data. This null result suggests that accretion of rocky material on to the photospheres of stars with planets is not the primary explanation for their high metallicities. However, the differences between the solar photospheric and meteoritic abundances do display a weak but significant trend with condensation temperature. This suggests that the metallicity of the Sun's envelope has been enriched relative to its interior by about 0.07 dex.

引用

页码：L37 / L41

页数：5

共 50 条

[31] The accretion of brown dwarfs and planets by giant stars - I. Asymptotic giant branch stars [J].

Siess, L ;

Livio, M .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1999, 304 (04) :925-937

[32] The frequency of giant planets around metal-poor stars [J].

Mortier, A. ;

Santos, N. C. ;

Sozzetti, A. ;

Mayor, M. ;

Latham, D. ;

Bonfils, X. ;

Udry, S. .

ASTRONOMY & ASTROPHYSICS, 2012, 543

[33] Li abundances in F stars: planets, rotation, and Galactic evolution [J].

Delgado Mena, E. ;

Bertran de Lis, S. ;

Adibekyan, V. Zh. ;

Sousa, S. G. ;

Figueira, P. ;

Mortier, A. ;

Gonzalez Hernandez, J. I. ;

Tsantaki, M. ;

Israelian, G. ;

Santos, N. C. .

ASTRONOMY & ASTROPHYSICS, 2015, 576

[34] The host stars of extrasolar planets have normal lithium abundances [J].

Ryan, SG .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2000, 316 (03) :L35-L39

[35] Behaviour of elements from lithium to europium in stars with and without planets [J].

Mishenina, T. ;

Kovtyukh, V. ;

Soubiran, C. ;

Adibekyan, V. Zh. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2016, 462 (02) :1563-1576

[36] Parent stars of extrasolar planets - VIII. Chemical abundances for 18 elements in 31 stars [J].

Gonzalez, Guillermo ;

Laws, Chris .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2007, 378 (03) :1141-1152

[37] Parent stars of extrasolar planets III:: ρ1 cancri revisited [J].

Gonzalez, G ;

Vanture, AD .

ASTRONOMY & ASTROPHYSICS, 1998, 339 (01) :L29-L32

[38] Metallicity of solar-type stars with debris discs and planets [J].

Maldonado, J. ;

Eiroa, C. ;

Villaver, E. ;

Montesinos, B. ;

Mora, A. .

ASTRONOMY & ASTROPHYSICS, 2012, 541

[39] Parent stars of extrasolar planets - IX. Lithium abundances [J].

Gonzalez, Guillermo .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2008, 386 (02) :928-934

[40] The evolution of lithium in FGK dwarf stars: Influence of planets and Galactic migration [J].

de Andres, F. Llorente ;

de la Reza, R. ;

Cruz, P. ;

Cuenda-Munoz, D. ;

Alfaro, E. J. ;

Chavero, C. ;

Cifuentes, C. .

ASTRONOMY & ASTROPHYSICS, 2024, 684

← 1 2 3 4 5 →