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arXiv 0706.3041astro-ph
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银河系盘射电和gamma-ray毫秒双星的星族合成

Population synthesis of radio and gamma-ray millisecond pulsars from the Galactic disk

Sarah A. Story, Peter L. Gonthier, Alice K. Harding

摘要:

我们目前的结果的人口综合毫秒星系盘。排除球状星团,我们的模型的空间分布的毫秒恒星假设他们的诞生在银河系盘与随机踢速度和发展他们到目前的银河系内的潜力。我们假设,正常和毫秒恒星是一个共同的无线电光度模型,调用一个新的无线电核心和锥发射最近的研究建议之间的关系描述的标准蜡烛。在无线电辐射光束的模拟中,我们探讨了相对论效应的时间延迟,畸变和扫回的开放场线。虽然这些影响是必不可少的理解脉冲轮廓,相位平均通量充分描述没有相对论模型。我们使用极冠加速模型的伽马射线发射。我们提出了我们最近的研究的初步结果,并与GLAST和AGILE观测毫秒双星的影响。

英文摘要:

We present results of a population synthesis of millisecond pulsars from the Galactic disk. Excluding globular clusters, we model the spatial distribution of millisecond pulsars by assuming their birth in the Galactic disk with a random kick velocity and evolve them to the present within the Galactic potential. We assume that normal and millisecond pulsars are standard candles described with a common radio luminosity model that invokes a new relationship between radio core and cone emission suggested by recent studies. In modeling the radio emission beams, we explore the relativistic effects of time delay, aberration and sweepback of the open field lines. While these effects are essential in understanding pulse profiles, the phase-averaged flux is adequately described without a relativistic model. We use a polar cap acceleration model for the gamma-ray emission. We present the preliminary results of our recent study and the implications for observing millisecond pulsars with GLAST and AGILE.

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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