10033.寬吸收線類星體光譜光變研究

1、學(xué)位論文獨創(chuàng)性聲明本人鄭重聲明：所提交的學(xué)位論文是本人在導(dǎo)師指導(dǎo)下進(jìn)行的研究工作和取得的研究成果。本論文中除引文外，所有實驗、數(shù)據(jù)和有關(guān)材料均是真實的。本論文中除引文和致謝的內(nèi)容外，不包含其他人或其它機(jī)構(gòu)已經(jīng)發(fā)表或撰寫過的研究成果。其他同志對本研究所做的貢獻(xiàn)均己在論文中作了聲明并表示了謝意。學(xué)位敝作者簽刮石J，八日期：1汐／g，，、7學(xué)位論文使用授權(quán)聲明研究生在校攻讀學(xué)位期間論文工作的知識產(chǎn)權(quán)單位屬南京師范大學(xué)。學(xué)校有權(quán)保存本學(xué)位論文的

2、電子和紙質(zhì)文檔，可以借閱或上網(wǎng)公布本學(xué)位論文的部分或全部內(nèi)容，可以采用影印、復(fù)印等手段保存、匯編本學(xué)位論文。學(xué)校可以向國家有關(guān)機(jī)關(guān)或機(jī)構(gòu)送交論文的電子和紙質(zhì)文檔，允許論文被查閱和借閱。(保密論文在解密后遵守此規(guī)定)保密論文注釋：本學(xué)位論文屬于保密論文，密級：——保密期限為——年。學(xué)位論文作者簽名：／歷占。式日期：徹f。Fl刁言導(dǎo)教師簽翥i_聰27／日期：一、／，，I2AbstractAbstractBroadabsorption—lin

3、equasars(BALQSOs)exhibitbroad，ultraviolet(UV)lineabsorptiontroughsBALtroughsarethoughttobethestrongestobservedsignaturesofQSOwindsVariabilityofBALcarlprovideinformationonthestructure，locationanddynamicsoftheoutflowwindsU

4、singasingleBALQso，SDSSJ022844090002170，(Z=2719)whichhas18epochobservationsandasamplewhichcontains188QSOs(z17)fromSloanDigitalSkySurvey(SDSS)／BaryonOscillationSpectroscopicSurvey(BOSS)，weinvestigatethespectralvariabilityo

5、fBALQSOs，aswellastherelationwiththecentralblackholeaccretionproperties(1)AsingleQSO，SDSSJ022844090002170FittingapowerlawcontinuumiterativelyandtheemissionlinesofCIV1549，SiIV1399，CIII]1399，wefindthatthereisastrongcorrelat

6、ionbetweentheBALequivalentwidth(EW)andthespectralindexandaweaknegativecorrelationbetweentheBAL—EWandthecontinuumluminosityThestrongcorrelationbetweentheBALEWandthespectralindexforthisparticularQSOsuggeststhatdustisintrin

7、sictooutflowsTheweakcorrelationbetweentheBALvariabilityandthecontinuumluminosityforthisparticularQsoimpliesthattheBALtroughvariationisnotdominatedbyphotoionization(2)Asampleof118BALQSOsThissampleisconsistof428spectra，cov

8、eringatimescaleofaboutO0013yearsintherestframeThroughfittingapowerlawcontinuumiterativelytheCIV1549BALEWsfor428spectraarecalculated，aswellasthecontinuumluminosityat1500A(L1500)andthespectralindex(0【)79variableregionsinth

9、eCIVBALtroughsareidentifiedin47two—epochdifferentspectraFor188BALQSOs，itisfoundthatthereisnosignificantcorrelationbetweenAEWandALl500orAct，about50％BALQSOsappearbluerduringtheirbrighterphasesForasubsampleofBALQSOswithvari

10、ableBALtroughregions，itisfoundthatthereisamediatecorrelationbetweentheALl500andAct，about70％BALQSOsappearbluerduringtheirbrighterphasesThislargerproportionimpliesthattheoriginofvariableBALtroughregionsisrelatedtothecentra

11、laccretionprocessThereisamoderatenegativecorrelationbetweenJAEWlandtheblackholemasses，showingsmallervariationofBALtroughinBALQSOswithlargerblackholemassesThereisamoderatepositivecorrelationbetweenthemaximumoutflowvelocit