HR 6060: The closest ever solar twin?

被引：92

作者：

deMello, GFP ^{[1
]}

daSilva, L ^{[1
]}

机构：

[1] CNPQ,OBSERV NACL,DEPT ASTRON,BR-20921400 SAO CRISTOVAO,RIO DE JANEIRO,BRAZIL

来源：

ASTROPHYSICAL JOURNAL | 1997年 / 482卷 / 01期

关键词：

stars; fundamental parameters; abundances; sun;

D O I：

10.1086/310693

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The detailed analysis of the optical spectrum and evolutionary state of the G2 Va star HR 6060 shows this object to have atmospheric parameters, mass, chromospheric activity, and UBV colors indistinguishable from the solar ones within the observational uncertainties. Only its luminosity and age are slightly higher than solar. Its abundance pattern is solar, with the exception of a slight excess of Sc, V and the elements heavier than Sr. HR 6060 surpasses all previously claimed solar twins in likeness to the Sun, and we recommend that it be considered for strong priority in the ongoing planet-searching programs as well as in SETI surveys.

引用

页码：L89 / L92

页数：4

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