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OJ287:和諧坐標(biāo)下的后牛頓計(jì)算和脈沖星計(jì)時(shí)殘差檢驗(yàn)

發(fā)布時(shí)間:2018-11-23 11:15
【摘要】:我們?cè)诤椭C坐標(biāo)下應(yīng)用后牛頓近似,計(jì)算出了雙黑洞系統(tǒng)候選者OJ287所產(chǎn)生的引力輻射。對(duì)比脈沖星PSR B1855+09的觀測(cè)結(jié)果,運(yùn)用計(jì)時(shí)殘差的方法進(jìn)一步展示了OJ287是雙黑洞系統(tǒng)的合理性。在我們所選定的一組初值下,主黑洞和次黑洞的運(yùn)動(dòng)軌道都有一定的漂移,這是由于質(zhì)心在和諧坐標(biāo)下的運(yùn)動(dòng)造成的。同時(shí)我們給出了雙黑洞系統(tǒng)引力輻射的能流,我們發(fā)現(xiàn)能流的正負(fù)號(hào)隨著階次交替變號(hào):EN0,E1PN0,E2PN0,這與我們之前發(fā)現(xiàn)的輻射力的正負(fù)號(hào)變化一致。 我們比較了和諧坐標(biāo)下和質(zhì)心系下的相對(duì)軌道,發(fā)現(xiàn)它們比較接近。另外,我們還進(jìn)一步討論了其他兩組初值條件,揭示和諧坐標(biāo)下的初值條件問(wèn)題并不平庸。
[Abstract]:Using the post-Newton approximation in the harmonious coordinates, we calculate the gravitational radiation generated by the candidate OJ287 in a double black hole system. Compared with the observational results of pulsar PSR B185509, the method of timing residuals is used to further demonstrate the rationality of OJ287 as a double black hole system. Under the selected initial values, the orbits of the main black hole and the secondary black hole drift to a certain extent, which is caused by the motion of the center of mass in harmonious coordinates. At the same time, we give the energy flow of gravitational radiation in a double black hole system. We find that the positive and negative sign of the energy flow varies with the order of alternating sign: EN0,E1PN0,E2PN0, which is consistent with the change of the positive and negative sign of the radiation force we found before. We compare the relative orbits in harmonious coordinates with those in the centroid system and find that they are close to each other. In addition, we further discuss the other two sets of initial value conditions, which reveal that the initial value conditions in harmonious coordinates are not mediocre.
【學(xué)位授予單位】:中國(guó)科學(xué)技術(shù)大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:P145.8;P145.6

【共引文獻(xiàn)】

相關(guān)期刊論文 前2條

1 Ming-Lei Tong;Cheng-Shi Zhao;Bao-Rong Yan;Ting-Gao Yang;Yu-Ping Gao;;Pulsar timing residuals due to individual non-evolving gravitational wave sources[J];Research in Astronomy and Astrophysics;2014年04期

2 唐孟希,李芳昱,趙鵬飛,唐敏然;引力波、引力波源和引力波探測(cè)實(shí)驗(yàn)[J];云南天文臺(tái)臺(tái)刊;2002年03期

相關(guān)博士學(xué)位論文 前2條

1 王炎;黑洞對(duì)電磁輻射傳播所產(chǎn)生的觀測(cè)效應(yīng)[D];南京大學(xué);2011年

2 王煈;引力波天文學(xué)及數(shù)據(jù)處理相關(guān)問(wèn)題[D];南京大學(xué);2013年

相關(guān)碩士學(xué)位論文 前1條

1 李春靈;黑洞—脈沖星系統(tǒng)強(qiáng)引力中的光傳播效應(yīng)[D];中國(guó)科學(xué)技術(shù)大學(xué);2014年

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