Discovery of millisecond variability in the neutron star X-ray transient SAX J1750.8-2900

被引:44
作者
Kaaret, P
In't Zand, JJM
Heise, J
Tomsick, JA
机构
[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
[2] Univ Utrecht, Astron Inst, NL-3508 TA Utrecht, Netherlands
[3] SRON, Natl Inst Space Res, NL-3584 CA Utrecht, Netherlands
[4] Univ Calif San Diego, Ctr Astrophys & Space Sci, La Jolla, CA 92093 USA
关键词
accretion; accretion disks; gravitation; relativity; stars : individual (SAX J1750.8-2900); stars : neutron; X-rays : stars;
D O I
10.1086/341336
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report the discovery of millisecond oscillations in the X-ray emission from the X-ray transient SAX J1750.8-2900. Millisecond quasiperiodic oscillations were present in the persistent emission with frequencies ranging from 543 to 1017 Hz. Oscillations at a frequency of 600.75 Hz were present in the brightest X-ray burst observed. We derive an upper limit on the source distance of 6.3 +/- 0.7 kpc from this X-ray burst.
引用
收藏
页码:1018 / 1024
页数:7
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