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MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, ISSN 0035-8711, 10/2019, Volume 488, Issue 4, pp. 4690 - 4731
We use the spectra of 73 quasars (1.5 less than or similar to z less than or similar to 5) from the VLT UVES archive to catalogue and study narrow absorption... 
PHYSICAL CONDITIONS | EMISSION-LINE | accretion, accretion discs | RADIO-LOUD | HST/COS OBSERVATIONS | BLACK-HOLES | HIGH-RESOLUTION SPECTROSCOPY | DRIVEN DISK WINDS | (galaxies:) quasars: absorption lines | ACTIVE GALACTIC NUCLEI | galaxies: active | (galaxies:) quasars: general | ASTRONOMY & ASTROPHYSICS | IONIZED-GAS | C-IV-ABSORPTION
Journal Article
by Chen, ZF and Yi, SX and Pang, TT and Yi, TF and Wang, ZW and Mo, XH and Liu, CQ
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, ISSN 0067-0049, 07/2019, Volume 243, Issue 1, p. 2
Using the quasar spectra from the Sloan Digital Sky Survey and with variable C IV absorption line systems, we measure the Si IV and N V absorption line... 
VARIABILITY | quasars: general | OUTFLOW | quasars: absorption lines | catalogs | ASTRONOMY & ASTROPHYSICS | galaxies: halos
Journal Article
by Zhao, YN and Ge, J and Yuan, XY and Zhao, T and Wang, C and Li, XL
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, ISSN 0035-8711, 07/2019, Volume 487, Issue 1, pp. 801 - 811
Metal absorption line systems in distant quasar spectra are probes of the history of the gas content in the universe. The Mg II lambda lambda 2796, 2803... 
SYSTEMS | methods: data analysis | quasars: absorption lines | techniques: spectroscopic | ASTRONOMY & ASTROPHYSICS | DIGITAL-SKY-SURVEY
Journal Article
by Lu, WJ and Lin, YR
ASTROPHYSICAL JOURNAL, ISSN 0004-637X, 08/2019, Volume 881, Issue 2, p. 105
We study the relationship between the broad absorption lines (BALs) that can be decomposed into multiple narrow absorption lines and those that cannot... 
quasars: absorption lines | QUASAR OUTFLOWS | DISK WINDS | EMERGENCE | BLACK-HOLES | GALAXY | VARIABILITY | SPECTROSCOPY | galaxies: active | quasars: individual (SDSS J113009.40+495247.9) | DIGITAL SKY SURVEY | ASTRONOMY & ASTROPHYSICS | CONTINUUM | ABSORBERS | Physics - Astrophysics of Galaxies
Journal Article
by Chen, ZF and Yao, M and Pang, TT and Yi, TF and Lu, MM and Liu, CQ and Nong, WJ and Liang, QY and Liang, JZ and Ma, SH and Wu, LH and Gan, YQ and Zou, ML
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, ISSN 0067-0049, 12/2018, Volume 239, Issue 2, p. 23
Using the quasar spectra from the Sloan Digital Sky Survey, all with two-epoch to six-epoch observations, we search for C IV lambda lambda 1548,1551 narrow... 
quasars: general | TELESCOPE | quasars: absorption lines | SEYFERT-GALAXIES | WINDS | REPEAT QUASAR OBSERVATIONS | galaxies: halos | VARIABILITY | OUTFLOWS | catalogs | ASTRONOMY & ASTROPHYSICS | IONIZING CONTINUUM | REDSHIFT | DATA RELEASE | DIGITAL-SKY-SURVEY
Journal Article
Astrophysical Journal, Supplement Series, ISSN 0067-0049, 09/2018, Volume 239, Issue 2
Journal Article
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 03/2018, Volume 474, Issue 3, pp. 3397 - 3402
Journal Article
Astrophysical Journal, ISSN 0004-637X, 10/2017, Volume 848, Issue 2, p. 79
This paper statistically investigates the properties of C IV and Mg II narrow absorption lines (NALs) to look for velocity cuts that can constrain... 
methods: statistical | quasars: general | galaxies: active | quasars: absorption lines | WINDS | STAR-FORMATION | RAY | SUPERMASSIVE BLACK-HOLES | VARIABILITY | ACTIVE GALACTIC NUCLEI | OUTFLOWS | ASTRONOMY & ASTROPHYSICS | SYSTEMS | ABSORBERS | DIGITAL-SKY-SURVEY | Physics - Astrophysics of Galaxies
Journal Article
by Lu, WJ and Lin, YR and Qin, YP and Huang, WR and Pan, CJ and Huang, HY and Yao, M and Nong, WJ and Yao, ZK and Lu, MM and Pan, DS and Huang, HQ and Han, QL
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, ISSN 0035-8711, 06/2017, Volume 468, Issue 1, pp. L6 - L10
In this Letter, we report the discovery of a strong correlation between the variability of narrow absorption lines (NALs) and the ionizing continuum from a... 
quasars: general | QUASAR | OUTFLOWS | galaxies: active | quasars: absorption lines | DIGITAL SKY SURVEY | ASTRONOMY & ASTROPHYSICS | DISK WINDS | IV | Physics - Astrophysics of Galaxies
Journal Article
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 2012, Volume 422, Issue 4, pp. 3249 - 3267
Broad absorption lines (BALs) in quasar spectra indicate high-velocity outflows that may be present in all quasars and could be an important contributor to... 
galaxies: active | quasars: absorption lines | quasars: general | METAL ABUNDANCES | COLUMN DENSITIES | NARROW | DRIVEN DISK WINDS | ACTIVE GALACTIC NUCLEI | DIGITAL SKY SURVEY | ASTRONOMY & ASTROPHYSICS | STELLAR OBJECTS | DATA RELEASE | INTRINSIC ABSORPTION | ABSORBERS
Journal Article
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 08/2015, Volume 453, Issue 2, pp. 1379 - 1395
Journal Article
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 2016, Volume 455, Issue 1, pp. 136 - 149
We study the transient (i.e. emerging or disappearing) C IV broad absorption line (BAL) components in 50 radio-detected QSOs using multi-epoch spectra... 
Quasars | General | Active | Absorption lines | Galaxies | quasars: general | quasars: absorption lines | MULTIYEAR TIMESCALES | EVOLUTION | CATALOG | TIME VARIABILITY | galaxies: active | DIGITAL SKY SURVEY | QUASAR OUTFLOW CONTRIBUTION | ASTRONOMY & ASTROPHYSICS | SDSS J0318-0600 | SCALE | EMISSION | DATA RELEASE
Journal Article
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 04/2015, Volume 450, Issue 2, pp. 1465 - 1476
Journal Article