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1. Full Text An ALMA Early Science survey of molecular absorption lines toward PKS 1830-211 : Analysis of the absorption profiles
by Muller, S and Combes, F and Guélin, M and Gérin, M and Aalto, S and Beelen, A and Black, J.H and Curran, S.J and Darling, J and V-Trung, Dinh and García-Burillo, S and Henkel, C and Horellou, C and Martín, S and Martí-Vidal, I and Menten, K.M and Murphy, M.T and Ott, J and Wiklind, T and Zwaan, M.A
Astronomy and Astrophysics, ISSN 0004-6361, 2014, Volume 566, pp. A112 - np
We present the first results of an ALMA spectral survey of strong absorption lines for common interstellar species in the z = 0.89 molecular absorber toward... 
Galaxies: abundances | Quasars: individual: PKS 1830-211 | Quasars: absorption lines | ISM: molecules | Galaxies: ISM | Radio lines: galaxies | SPIRAL GALAXY | Z=0.89 | AMMONIA | quasars: absorption lines | quasars: individual: PKS 1830-211 | MICROWAVE BACKGROUND TEMPERATURE | TIME-DELAY | radio lines: galaxies | galaxies: ISM | ASTRONOMY & ASTROPHYSICS | GAS | ELECTRON MASS-RATIO | REDSHIFT | galaxies: abundances | GRAVITATIONAL LENS | FUNDAMENTAL CONSTANTS | Intervals | Absorption | Molecular structure | Disks | Blazars | Diffusion | Image detection | Molecular absorption | Astronomi, astrofysik och kosmologi | Astronomy, Astrophysics and Cosmology
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2. Full Text Tracing inflows and outflows with absorption lines in circumgalactic gas
by Ford, Amanda Brady and Davé, Romeel and Oppenheimer, Benjamin D and Katz, Neal and Kollmeier, Juna A and Thompson, Robert and Weinberg, David H
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 2014, Volume 444, Issue 2, pp. 1260 - 1281
We examine how HI and metal absorption lines within low-redshift galaxy haloes trace the dynamical state of circumgalactic gas, using cosmological hydrodynamic... 
Quasars: Absorption lines | Galaxies: Haloes | Intergalactic medium | Galaxies: Kinematics and dynamics | Cosmology: Theory | Galaxies: Evolution | PHYSICAL CONDITIONS | COSMOLOGICAL HYDRODYNAMIC SIMULATIONS | STAR-FORMING GALAXIES | galaxies: evolution | quasars: absorption lines | 10 BILLION YEARS | NEUTRAL HYDROGEN | intergalactic medium | cosmology: theory | COS-HALOS SURVEY | LOW-REDSHIFT | ASTRONOMY & ASTROPHYSICS | galaxies: kinematics and dynamics | LY-ALPHA | HIGH-VELOCITY CLOUDS | galaxies: haloes | Gases | Simulation | Black holes | Stars & galaxies | Astronomy | Physics - Cosmology and Nongalactic Astrophysics
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3. Full Text Probing quasar winds using intrinsic narrow absorption lines
by Culliton, C and Charlton, J and Eracleous, M and Ganguly, R and Misawa, T
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
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4. Full Text The Correlated Variations of Absorption Lines and Quasar Continuum
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
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5. Full Text Identifying Mg II narrow absorption lines with deep learning
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
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6. Full Text Narrow Absorption Lines Complex. III. Gradual Transition from Type S to Type N Broad Absorption Line
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
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7. Full Text Narrow C IV Absorption Lines with Multi-epoch Observations
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
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8. Full Text Narrow Civ Absorption Lines with Multi-epoch Observations
by Chen, Zhi-Fu and Yao, Min and Pang, Ting-Ting and Yi, Ting-Feng and Lu, Mei-Mei and Liu, Chun-Qun and Nong, Wei-Jing and Liang, Qiu-Ying and Liang, Jian-Zeng and Ma, Shi-Hai and Wu, Li-Hua and Gan, Yao-Qing and Zou, Mei-Li
Astrophysical Journal, Supplement Series, ISSN 0067-0049, 09/2018, Volume 239, Issue 2
quasars: general | quasars: absorption lines | catalogs | galaxies: halos
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9. Full Text Narrow absorption lines complex I: One form of broad absorption line
by Lu, Wei-Jian and Lin, Ying-Ru
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 03/2018, Volume 474, Issue 3, pp. 3397 - 3402
We discover that some of the broad absorption lines (BALs) are actually a complex of narrow absorption lines (NALs). As a pilot study of this type of BAL, we... 
Quasars: absorption lines | Galaxies: active | Quasars: individual (SDSS J0027-0944) | QUASAR | TELESCOPE | quasars: absorption lines | DISK WINDS | VARIABILITY | quasars: individual (SDSS J0027-0944) | OUTFLOWS | galaxies: active | DIGITAL SKY SURVEY | ASTRONOMY & ASTROPHYSICS | X-RAY-PROPERTIES | IONIZING CONTINUUM | INTRINSIC ABSORPTION | ABSORBERS | Fine structure | Substructures | Model testing | Absorption | Photoionization | Ionization | Troughs | Outflow | Sky surveys (astronomy) | Evolution | Velocity | Inclination | Physics - Astrophysics of Galaxies
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10. Full Text Collective Properties of Quasar Narrow Associated Absorption Lines
by Chen, Zhi-Fu and Pan, Da-Sheng
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
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11. Full Text Evidence for photoionization-driven variability in narrow absorption lines
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
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12. Full Text Variability in quasar broad absorption line outflows - II. Multi-epoch monitoring of Si iv and C iv broad absorption line variability
by Capellupo, D. M and Hamann, F and Shields, J. C and Rodríguez Hidalgo, P and Barlow, T. A
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
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13. Full Text Absorption-line systems in simulated galaxies fed by cold streams
by Fumagalli, Michele and Prochaska, J. Xavier and Kasen, Daniel and Dekel, Avishai and Ceverino, Daniel and Primack, Joel R
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 12/2011, Volume 418, Issue 3, pp. 1796 - 1821
Hydro-cosmological simulations reveal that massive galaxies at high redshift are fed by long narrow streams of merging galaxies and a smoother component of... 
galaxies: formation | intergalactic medium | galaxies: evolution | quasars: absorption lines | galaxies: high‐redshift | radiative transfer | Galaxies: evolution | Radiative transfer | Galaxies: high-redshift | Intergalactic medium | Quasars: absorption lines | Galaxies: formation | STAR-FORMING GALAXIES | HIGH-REDSHIFT GALAXIES | galaxies: high-redshift | MESH REFINEMENT SIMULATIONS | COSMOLOGICAL RADIATIVE-TRANSFER | COLUMN DENSITY DISTRIBUTION | OPTICALLY THICK ABSORBERS | LY-ALPHA SYSTEMS | ASTRONOMY & ASTROPHYSICS | TO-MOLECULAR TRANSITION | LYMAN-LIMIT SYSTEMS | INITIAL MASS FUNCTION | Galaxies | Analysis | Astronomy | Radiation | Fluid mechanics | Red shift | Astrophysics | Stars & galaxies | Kinematics | Cold gas | Equivalence | Simulation | Images | Outflow | Signatures | Streams | Physics - Cosmology and Nongalactic Astrophysics
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14. Full Text Constraining FeLoBAL outflows from absorption line variability
by McGraw, S.M and Shields, J.C and Hamann, F.W and Capellupo, D.M and Gallagher, S.C and Brandt, W.N
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 08/2015, Volume 453, Issue 2, pp. 1379 - 1395
Iron low-ionization broad absorption lines (FeLoBALs) trace a rare class of quasar outflows with large column densities and potentially large kinetic energies... 
Quasars: absorption lines | Galaxies: active | Quasars: general | quasars: general | quasars: absorption lines | LARGE TELESCOPE OBSERVATIONS | MULTIYEAR TIMESCALES | ACCRETION DISKS | AGN FEEDBACK | DRIVEN DISK WINDS | ACTIVE GALACTIC NUCLEI | TIME VARIABILITY | galaxies: active | DIGITAL SKY SURVEY | ASTRONOMY & ASTROPHYSICS | QUASI-STELLAR OBJECTS | DATA RELEASE | Quasars | Iron | Physical properties | Star & galaxy formation | Astronomy | Physics - Astrophysics of Galaxies
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15. Full Text Transient CIV broad absorption lines in radio-detected QSOs
by Vivek, M and Srianand, R and Gupta, N
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
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16. Full Text The broadening of Lyman-α forest absorption lines
by Garzilli, Antonella and Theuns, Tom and Schaye, Joop
Monthly Notices of the Royal Astronomical Society, ISSN 0035-8711, 04/2015, Volume 450, Issue 2, pp. 1465 - 1476
We provide an analytical description of the line broadening of HI absorbers in the Lyman-alpha forest resulting from Doppler broadening and Jeans smoothing. We... 
Intergalactic medium | Quasars: absorption lines | Large-scale structure of Universe | THERMAL HISTORY | quasars: absorption lines | TEMPERATURE-DENSITY RELATION | large-scale structure of Universe | intergalactic medium | COSMOLOGICAL SIMULATIONS | RADIATIVE-TRANSFER | EQUATION-OF-STATE | POWER SPECTRUM | PROBABILITY-DISTRIBUTION FUNCTION | SMALL-SCALE STRUCTURE | ASTRONOMY & ASTROPHYSICS | QUASI-STELLAR OBJECTS | Physics - Cosmology and Nongalactic Astrophysics
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