Black holes and naked singularities in the low-energy limit of string gravity with a modulus field

被引:6
|
作者
Alexeyev, S
Mignemi, S
机构
[1] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow 119899, Russia
[2] Univ Cagliari, Dipartmento Matemat, I-09123 Cagliari, Italy
[3] Ist Nazl Fis Nucl, Sez Cagliari, I-09042 Monserrato, Italy
关键词
D O I
10.1088/0264-9381/18/20/301
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We show that the black hole solutions of the effective string theory action, where one-loop effects that couple the moduli to gravity via a Gauss-Bonnet term are taken into account, admit primary scalar hair. The requirement of absence of naked singularities imposes an upper bound on the scalar charges.
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页码:4165 / 4177
页数:13
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