Evidence for a 2:3 resonance in Sco X-1 kHz QPOs

被引：123
作者：
Abramowicz, MA
Bulik, T
Bursa, M
Kluzniak, W
机构：
[1] Inst Astrophys Paris, F-75014 Paris, France
[2] Univ Paris 06, F-75252 Paris 05, France
[3] Chalmers Univ, Dept Astrophys, S-41296 Gothenburg, Sweden
[4] Copernicus Astron Ctr, PL-00716 Warsaw, Poland
[5] Charles Univ, Astron Inst, CR-18000 Prague 8, Czech Republic
[6] Zielona Gora Univ, Inst Astron, PL-65265 Zielona Gora, Poland
[7] Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France
来源：
ASTRONOMY & ASTROPHYSICS | 2003年 / 404卷 / 01期
关键词：
dense matter; general relativity; stars : neutron; stars : Sco X-1; X-rays : stars;
D O I：
10.1051/0004-6361:20030737
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We find evidence that the two high frequency QPOs in Sco X-1 are, more often than not, approximately in the 2: 3 frequency ratio familiar from studies of black hole candidates (e.g., XTE J1550-564, Remillard et al. 2002). This implies that the double kHz QPO phenomenon in neutron stars has its origin in properties of strong-field gravity and has little to do with the rotation of a stellar surface or any magnetic field structure anchored in the star.
引用
收藏
页码：L21 / L24
页数：4
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