本文關鍵詞：衰減磁場和r-模制動誘導的中子星化學加熱研究　出處：《華中師范大學》2013年碩士論文　論文類型：學位論文

  更多相關文章： 致密天體 中子星 r模 化學加熱

【摘要】：中子星是快速自轉的,具有強磁場的致密天體。在這種形式下的中子星會不斷通過磁偶極輻射釋放轉動能,使得星體轉動角速度逐漸變小。進而壓縮星體,導致口平衡破壞產(chǎn)生化學加熱。這種存在于中子星內(nèi)的加熱機制可能使得中子星在年老時期仍處于較高的溫度。 第二章作為研究基礎,充分討論了中子星的物態(tài)方程及質(zhì)量-半徑關系。 第三章討論中子星熱演化方程,以及化學加熱機制。著重研究磁場衰減情況下,中子星制動、化學偏離以及化學能在中子星熱演化過程中的釋放。結果顯示磁場衰減將使得中子星的制動效果在后期變得更加緩慢,中子星的溫度在演化后期更低。 第四章研究r-模制動誘導中子星的熱演化行為。雖然r-模制動在早期效果非常顯著,但由于早期中子星的溫度很高,即使產(chǎn)生加熱效應也不能體現(xiàn)出來。所以由于r-模制動誘導的化學加熱效果在中子星演化晚期才會產(chǎn)生明顯的區(qū)別,使得中子星的溫度相對于偶極制動更低。
[Abstract]:Neutron stars are rapidly rotating, compact objects have a strong magnetic field. The neutron star in this form will continue through the magnetic dipole radiation release of rotational energy, causes the star angular velocity becomes smaller. Then the compact star, resulting in failure to produce chemical export balance heating. Heating mechanism of this kind exists in neutron stars may make neutron the star is still at a high temperature in the old time.
The second chapter, as the basis of the study, discusses the equation of the state of the neutron star and the relation of the mass - radius.
The third chapter discusses the thermal evolution of neutron stars equation and chemical heating mechanism. Focuses on the magnetic field attenuation case, neutron star brake, chemical drift and thermal evolution of neutron stars in chemical energy release in the process. The results show that the magnetic field attenuation will make the braking effect of the neutron star becomes more slowly in the later period, the temperature of the neutron stars in the late evolution lower.
The fourth chapter studies the thermal evolution behavior of r- induced braking of neutron stars. Although r- mode is very significant in the early braking effect, but due to the early neutron star temperature is very high, even if the heating effect is not reflected. So because of the chemical heating effect induced by r- mode brake neutron star at the advanced stage of evolution will have a significant difference the neutron star temperature relative to the dipole brake lower.

【學位授予單位】：華中師范大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：P145.6

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