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arXiv 0712.3140astro-ph
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用WSRT对毫秒脉冲星的低频观测

Low Frequency Observations of Millisecond Pulsars with the WSRT

B. W. Stappers, R. Karuppusamy, J. W. T. Hessels

摘要:

随着LOFAR在2008年开始运行,研究低频高信噪比的频谱具有巨大的潜力。我们目前的观测结果与韦斯特博克综合射电望远镜重新审视,与现代技术,这个频率范围。本文给出了在115-175 MHz之间同时获得的毫秒脉冲的相干去色散剖面。我们认为,检测和未检测到的14 MSP在以前的观测和通量,分散措施和光谱指数的这些恒星。根据这些结果讨论了LOFAR寻找新的MSP和研究现有系统的良好前景。

英文摘要:

With LOFAR beginning operation in 2008 there is huge potential for studying pulsars with high signal to noise at low frequencies. We present results of observations made with the Westerbork Synthesis Radio Telescope to revisit, with modern technology, this frequency range. Coherently dedispersed profiles of millisecond pulsars obtained simultaneously between 115-175 MHz are presented. We consider the detections and non-detections of 14 MSPs in light of previous observations and the fluxes, dispersion measures and spectral indices of these pulsars. The excellent prospects for LOFAR finding new MSPs and studying the existing systems are then discussed in light of these results.

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。

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