【摘要】： 隨著觀測(cè)設(shè)備的大力發(fā)展,如望遠(yuǎn)鏡空間分辨率、靈敏度的提高和譜線接收機(jī)性能的改進(jìn),特別是VLBI(甚長(zhǎng)基線干涉儀射電天文測(cè)量系統(tǒng))的投入使用,使得水脈澤輻射在越來(lái)越多的河外星系中被檢測(cè)到。觀測(cè)和研究表明河外水脈澤輻射通常與活動(dòng)星系核(AGN)相關(guān),且絕大多數(shù)脈澤源位于第二型的活動(dòng)星系核區(qū)。這類星系的核區(qū)被高密度的氣體嚴(yán)重遮掩,故而從光學(xué)和紅外波段得到的觀測(cè)數(shù)據(jù)難以探測(cè)到其核區(qū)的內(nèi)部環(huán)境;而具有穿透性的X-ray輻射為我們提供了一個(gè)研究模糊的活動(dòng)星系核核區(qū)內(nèi)部環(huán)境非常有效的工具,并且這類水脈澤的觸發(fā)源被認(rèn)為是核區(qū)的X-ray源通過(guò)碰撞抽運(yùn)產(chǎn)生的,因此通過(guò)對(duì)星系核區(qū)的X-ray輻射的觀測(cè)以及理論研究,可以探索這類水脈澤的產(chǎn)生環(huán)境和激發(fā)機(jī)制等。另外,X-ray輻射區(qū)可能位于AGN內(nèi)區(qū),且非�？拷诙匆暯�,X-ray連續(xù)譜型,特別是Fe線包含了黑洞附近極端物理?xiàng)l件下的豐富信息;因此,對(duì)X-ray譜的研究,可以探索AGN核區(qū)的物理環(huán)境,得到吸積盤和黑洞附近物質(zhì)的一些物理性質(zhì)和物理參量,以及探測(cè)吸積流結(jié)構(gòu)等。近年來(lái)由于X-ray天文學(xué)的大力發(fā)展,尤其是高靈敏度、高分辨率的XMM-Newton和Chandra衛(wèi)星被相繼發(fā)射和使用,許多活動(dòng)星系核已經(jīng)被觀測(cè),大量數(shù)據(jù)已經(jīng)或正在被釋放,這些為我們研究水脈澤寄主星系的活動(dòng)星系核提供了很好的條件。同時(shí),通過(guò)對(duì)水脈澤寄主星系各物理參量之間可能存在的相關(guān)性進(jìn)行研究,進(jìn)而了解這類脈澤所處的物理環(huán)境,研究它們產(chǎn)生的物理機(jī)制。本論文主要對(duì)水脈澤寄主星系的X-ray觀測(cè)資料進(jìn)行處理和分析,主要由以下三部分組成。 論文的第一部分調(diào)研了已公布的水脈澤寄主活動(dòng)星系核的X-ray觀測(cè)情況及其被處理情況。 論文的第二部分研究XMM-Newton衛(wèi)星觀測(cè)數(shù)據(jù)的處理方法,并對(duì)未被處理的河外水脈澤寄主星系NGC7479的XMM-Newton觀測(cè)資料進(jìn)行了處理和分析,我們不僅分析了其核區(qū)的X-ray輻射,而且對(duì)這個(gè)星系中的一個(gè)亮X-ray源進(jìn)行了分析和討論。 論文的第三部分主要分析和研究了河外水脈澤寄主AGN吸積率和非水脈澤寄主AGN吸積率的區(qū)別以及水脈澤光度與吸積率之間的關(guān)系。
[Abstract]:With the rapid development of observational equipment, such as the spatial resolution of telescopes, the improvement of sensitivity and the improvement of spectral line receiver performance, especially VLBI (very long baseline Interferometer Radio Astronomical Measurement system), Water maser radiation is being detected in a growing number of extragalactic systems. Observations and studies show that the extragalactic water maser radiation is usually associated with the active galactic nucleus (AGN), and most of the maser sources are located in the second type active galactic nucleus region. The nuclear regions of these galaxies are heavily obscured by high density gas, so it is difficult to detect the internal environment of the nuclear region by the observed data from optical and infrared bands. The penetrating X-ray radiation provides us with a very effective tool to study the internal environment of the indistinct active galactic nuclear region, and this type of water maser trigger source is thought to be generated by collision pumping of the X-ray source in the nuclear region. Therefore, the generation environment and excitation mechanism of this kind of water maser can be explored through the observation and theoretical study of the X-ray radiation in the galactic nucleus region. In addition, the X-ray radiation region may be located in the inner region of AGN and is very close to the event horizon of the black hole. The X-ray continuum type, especially the Fe line, contains abundant information under extreme physical conditions near the black hole. Therefore, the study of the X-ray spectrum can explore the physical environment of the AGN nuclear region, obtain some physical properties and physical parameters of the accretion disk and the matter near the black hole, and detect the accretion flow structure. In recent years, due to the rapid development of X-ray astronomy, especially the launch and use of high-sensitivity, high-resolution XMM-Newton and Chandra satellites, many active galactic nuclei have been observed and a large number of data have been or are being released. These provide a good condition for us to study the active galactic nuclei of host galaxies. At the same time, by studying the possible correlation between the physical parameters of the host galaxies, we can understand the physical environment of these masers and study their physical mechanism. In this paper, the X-ray data of the host galaxies are processed and analyzed, which consists of three parts. In the first part of the paper, we investigate the X-ray observations and their treatment of the water maser host active galactic nuclei (AGNs). In the second part of the thesis, we study the processing method of XMM-Newton satellite observation data, and process and analyze the XMM-Newton observation data of NGC7479, an untreated extragalactic maser host galaxy. We not only analyze the X-ray radiation in its nuclear region, A bright X-ray source in this galaxy is also analyzed and discussed. In the third part of the paper, the difference between the AGN accretion rate and the non-water maser host AGN accretion rate and the relationship between the water maser luminosity and the accretion rate are analyzed and studied.
【學(xué)位授予單位】：廣州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2010
【分類號(hào)】：P111.5

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本文編號(hào)：2391459