Fast X-ray Oscillations During Magnetar Flares
The giant flares produced by highly magnetized neutron stars, magnetars, are the brightest sources of high energy radiation outside our solar system. Serendipitous observations with NASAs Rossi X-ray Timing Explorer (RXTE) of the two most recent flares resulted in the discovery of high frequency oscillations in their X-ray fluxes. The frequencies of these oscillations range from ≈20Hz to as high as 1800Hz, and may represent the first detection of global oscillation modes of neutron stars. Here Ⅰ will present an observational and theoretical overview of these oscillations and discuss how they might allow us to probe neutron star interiors and dense matter physics.
neutron stars torsional oscillations pulsars rotation magnetospheres
Tod E. Strohmayer
Astrophysics Science Division, NASAs Goddard Space Flight Center, Greenbelt, MD, USA
国际会议
紧凑型物体的天体物理学国际会议(International Conference on Astrophysics of Compact Objects)
安徽黄山
英文
85-92
2007-07-01（万方平台首次上网日期，不代表论文的发表时间）