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衰減磁場(chǎng)和r-模制動(dòng)誘導(dǎo)的中子星化學(xué)加熱研究

發(fā)布時(shí)間:2018-01-01 13:24

  本文關(guān)鍵詞:衰減磁場(chǎng)和r-模制動(dòng)誘導(dǎo)的中子星化學(xué)加熱研究 出處:《華中師范大學(xué)》2013年碩士論文 論文類型:學(xué)位論文


  更多相關(guān)文章: 致密天體 中子星 r模 化學(xué)加熱


【摘要】:中子星是快速自轉(zhuǎn)的,具有強(qiáng)磁場(chǎng)的致密天體。在這種形式下的中子星會(huì)不斷通過(guò)磁偶極輻射釋放轉(zhuǎn)動(dòng)能,使得星體轉(zhuǎn)動(dòng)角速度逐漸變小。進(jìn)而壓縮星體,導(dǎo)致口平衡破壞產(chǎn)生化學(xué)加熱。這種存在于中子星內(nèi)的加熱機(jī)制可能使得中子星在年老時(shí)期仍處于較高的溫度。 第二章作為研究基礎(chǔ),充分討論了中子星的物態(tài)方程及質(zhì)量-半徑關(guān)系。 第三章討論中子星熱演化方程,以及化學(xué)加熱機(jī)制。著重研究磁場(chǎng)衰減情況下,中子星制動(dòng)、化學(xué)偏離以及化學(xué)能在中子星熱演化過(guò)程中的釋放。結(jié)果顯示磁場(chǎng)衰減將使得中子星的制動(dòng)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(dòng)誘導(dǎo)中子星的熱演化行為。雖然r-模制動(dòng)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(yīng)也不能體現(xiàn)出來(lái)。所以由于r-模制動(dòng)誘導(dǎo)的化學(xué)加熱效果在中子星演化晚期才會(huì)產(chǎn)生明顯的區(qū)別,使得中子星的溫度相對(duì)于偶極制動(dòng)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(xué)位授予單位】:華中師范大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2013
【分類號(hào)】:P145.6

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1 ;金是從哪里來(lái)的[J];科學(xué)課;2002年Z1期

2 曲欽岳,汪珍如,趙家炳;夸克-反常中子星[J];中國(guó)科學(xué)A輯;1983年02期

3 陸W,

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