蟹状星云脉冲星的光学偏振：精确测量和与射电辐射的比较
Optical polarisation of the Crab pulsar: precision measurements and comparison to the radio emission
摘要：
蟹状星云脉冲星的线性偏振及其近距离环境是由2.56米北欧光学望远镜上的高速光偏振计OPTIMA在光谱范围（400 - 750 nm）内的观测得出的。时间分辨率短至11微秒，对应于脉冲星旋转的1/3000相位间隔，高统计允许以前从未实现过的偏振细节的推导。光偏振度和位置角与光波长和610和1400 MHz的射频下的光变曲线在令人惊讶的细节上相关。我们的观察表明，在假定的非相干（光学）和相干（无线电）发射之间存在着微妙的联系。这一发现支持了先前检测到的蟹状星云的光强度与巨型射电脉冲发生之间的相关性。解释我们的观察结果需要更详细的理论模型比那些目前在文献中。
英文摘要：
The linear polarisation of the Crab pulsar and its close environment was derived from observations with the high-speed photo-polarimeter OPTIMA at the 2.56-m Nordic Optical Telescope in the optical spectral range (400 - 750 nm). Time resolution as short as 11 microseconds, which corresponds to a phase interval of 1/3000 of the pulsar rotation, and high statistics allow the derivation of polarisation details never achieved before. The degree of optical polarisation and the position angle correlate in surprising details with the light curves at optical wavelengths and at radio frequencies of 610 and 1400 MHz. Our observations show that there exists a subtle connection between presumed non-coherent (optical) and coherent (radio) emissions. This finding supports previously detected correlations between the optical intensity of the Crab and the occurrence of giant radio pulses. Interpretation of our observations require more elaborate theoretical models than those currently available in the literature.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
