发表机构
IISER Bhopal(印度科学教育研究所博帕尔分校)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
本文旨在改进脉冲星积分脉冲轮廓的模拟,通过开发物理一致的模型并纳入星际介质传播效应,以生成逼真的合成轮廓,从而促进对脉冲星发射机制的理解和观测数据的解释。
AI 中文摘要
本论文是一项正在进行的工作,旨在改进脉冲星积分脉冲轮廓的模拟。脉冲星是高度磁化的旋转中子星,可作为精确的宇宙时钟,用于研究引力和星际介质。尽管许多脉冲星在不同射电频率下的周期性脉冲已被观测和建模,但利用其参数进行稳健逼真的轮廓模拟仍发展不足。本研究专注于开发一个物理上一致的模型,以再现跨多个频率的观测脉冲形状。这项研究将有助于连贯地理解脉冲星发射机制的各个方面。这些积分脉冲轮廓是脉冲星发射的时间平均特性,是在对数千次旋转中的单个脉冲进行平均后获得的。观测显示它们高度稳定,反映了脉冲星磁层的整体性质。通过改进模拟技术并纳入星际介质的传播效应,这项工作将有助于生成合成但逼真的模型。预期结果将有助于解释观测数据,并促进改进的计时和发射模型的发展。
英文摘要
The present thesis is a work in progress on improving the simulation of integrated pulse profiles of pulsars. Pulsars, highly magnetized rotating neutron stars, serve as precise cosmic clocks useful for studying gravity and the interstellar medium. Although periodic pulses from many pulsars are observed and modeled at differ- ent radio frequencies, a robust realistic simulation of their profiles utilizing their parameters remain underdeveloped. The present study focuses on developing a physically consistent model to reproduce observed pulse shapes across multiple frequencies. This study will be useful in coherently understanding the various as- pects of the pulsar emission mechanism. These integrated pulse profiles are the time-averaged properties of pulsar emission and are obtained after averaging indi- vidual pulses over a few thousand rotations. Observed to be highly stable, these are indicative of the global properties of the pulsar magnetosphere. By refining simulation techniques and incorporating the propagation effects of the interstellar medium, this work will prove to be helpful in generating synthetic, yet realistic models. The results are expected to contribute to the interpretation of observa- tional data and to the development of improved timing and emission models for pulsars