ALL or J/ApJ/613/129 (density 6)
(c) Equivalent widths of QSOs (Wise+, 2004)
J/ApJ/683/L115 (density 6)
(c) Intermediate-line region in quasars (Hu+, 2008)
J/ApJ/687/78 (density 6)
(c) FeII emission in quasars (Hu+, 2008)
J/ApJ/702/767 (density 6)
(c) CIV and FeK{alpha} Baldwin effects in AGNs (Wu+, 2009)
J/ApJ/708/868 (density 6)
(c) CIV candidates (Cooksey+, 2010)
J/ApJ/729/87 (density 6)
(c) SiIV absorption systems (Cooksey+, 2011)
J/ApJ/732/110 (density 6)
(c) SDSS 2175Å extinction bump candidates (Jiang+, 2011) spectrum
J/ApJ/740/91 (density 6)
(c) Ly{alpha} and OVI in galaxies around quasars (Prochaska+, 2011)
J/ApJ/754/38 (density 6)
(c) MgII absorption systems for Flat-Spectrum Radio QSOs (Chand+, 2012)
J/ApJ/761/112 (density 6)
(c) High-redshift MgII absorption QSOs with FIRE (Matejek+, 2012)
J/ApJ/776/136 (density 6)
(c) QPQ VI. HI absorption of z~2 quasars (Prochaska+, 2013)
J/ApJ/817/55 (density 6)
(c) NIR spectroscopy of 1.5<z<3.5 broad-band QSOs (Shen, 2016) spectrum
J/ApJ/843/30 (density 6)
(c) MgII line vs 3000Å continuum analysis in 68 QSOs (Zhu+, 2017) spectrum
J/ApJ/847/81 (density 6)
(c) HeII photoionization rates of quasars (Schmidt+, 2017)
J/ApJ/852/22 (density 6)
(c) Ly{alpha} forest power spectrum at 1.8<=z<=3.4 (Walther+, 2018)
J/ApJ/857/126 (density 6)
(c) Quasars Probing Quasars. IX. (QPQ9) (Lau+, 2018)
J/ApJ/859/116 (density 6)
(c) BH masses and Eddington ratios of Type 2 QSOs (Kong+, 2018)
J/ApJ/860/41 (density 6)
(c) Spectral & environment properties of z~2 QSO pairs (Lusso+, 2018) spectrum
J/ApJ/872/21 (density 6)
(c) SDSS RM project: <10day CIV BAL variability (Hemler+, 2019)
J/ApJ/883/78 (density 6)
(c) Column densities of CGM absorption lines (Pointon+, 2019)
ALL or J/ApJ/883/163 (density 6)
(c) OI abs. search in Keck and VLT spectra of 199 QSOs (Becker+, 2019)
J/ApJ/887/196 (density 6)
(c) REQUIEM survey. I. Ly{alpha} halos around QSOs (Farina+, 2019)
J/ApJ/887/268 (density 6)
(c) Bright QSOs in Southern Hemisphere (QUBRICS) (Calderone+, 2019)
J/ApJ/888/85 (density 6)
(c) Ghostly strong Lya absorbers in SDSS DR12 (Fathivavsari, 2020) spectrum
J/ApJ/890/132 (density 6)
(c) MgII abs. toward SDSS QSOs with rotation measures (Malik+, 2020)
J/ApJ/901/123 (density 6)
(c) Ghostly damped Ly{alpha} systems in SDSS DR14 (Fathivavsari, 2020)
J/ApJ/903/24 (density 6)
(c) Ly{alpha} emitters and QSOs in COMSOS and EGS fields (Mukae+, 2020)
J/ApJ/905/52 (density 6)
(c) Extreme variability QSOs from SDSS DR16 (Guo+, 2020) spectrum
J/ApJ/923/189 (density 6)
(c) 18 UV bright QSOs obs. with HST (COS-IGrM survey) (McCabe+, 2021)
J/ApJ/923/223 (density 6)
(c) VLT/X-SHOOTER & Keck/ESI spectra of z~5 QSOs (Zhu+, 2021)
J/ApJ/931/154 (density 6)
(c) High-quality UV & X-ray quasar spectral data (Rivera+, 2022)
J/ApJ/932/76 (density 6)
(c) Ly{beta} dark gaps in z\la6 QSOs spectra (Zhu+, 2022)
J/ApJ/950/95 (density 6)
(c) GNIRS-DQS: SDSS 1.5<z<3.5 QSOs with NIR sp. obs. (Matthews+, 2023)
J/ApJ/963/7 (density 6)
(c) Extreme variability quasars. II. SDSS sp. fitting (Ren+, 2024)
J/ApJS/214/23 (density 6)
(c) IR spectra and photometry of z<0.5 quasars (Shi+, 2014) spectrum
J/ApJS/221/32 (density 6)
(c) Narrow MgII absorption lines from SDSS-DR9Q (Chen+, 2015) spectrum
J/ApJS/234/16 (density 6)
(c) H{alpha} & H{beta} spectral regions of low-z QSOs (Chen+, 2018) spectrum
J/ApJS/235/11 (density 6)
(c) Absorption features in SDSS. I. MgII abs. doublets (Chen+, 2018) spectrum
J/ApJS/236/39 (density 6)
(c) CIV narrow absorption line systems in SDSS-DR14 (Chen+, 2018) spectrum
J/ApJS/239/23 (density 6)
(c) CIV NAL systems from SDSS-DR14 quasar spectra (Chen+, 2018) spectrum
ALL or J/ApJS/240/6 (density 6)
(c) LAMOST Quasar Survey: Data Releases 4 and 5 (Yao+, 2019)
J/ApJS/242/28 (density 6)
(c) MgII-BAL quasar variability in SDSS spectra (Yi+, 2019)
J/ApJS/243/2 (density 6)
(c) SiIV and NV absorption line SDSS quasar systems (Chen+, 2019) spectrum
J/ApJS/244/36 (density 6)
(c) QSO properties from SDSS. II. The first two years (Chen+, 2019) spectrum
J/ApJS/250/3 (density 6)
(c) Variable MgII NALs in SDSS DR14 (Chen+, 2020) spectrum
J/ApJS/258/18 (density 6)
(c) Damped Ly{alpha} systems from SDSS DR16Q (Chabanier+, 2022) spectrum
J/ApJS/259/18 (density 6)
SHELLQs. XVI. New quasars at 5.8<z<7 (Matsuoka+, 2022)
J/ApJS/261/32 (density 6)
(c) Finding GPQs. II. Sp. observations of |b|<20° QSOs (Fu+, 2022)
J/ApJS/265/46 (density 6)
(c) SDSS DR16Q QSO pairs with MgII abs. line analysis (Chen+, 2023) spectrum
J/ApJS/280/68 (density 6)
(c) SHELLQs. XXIV. Obscured quasar candidates (Matsuoka+, 2025)
J/A+A/370/426 (density 6)
UVES Spectrum of APM BR J0307-4945 (Dessauges-Zavadsky+, 2001)
J/A+A/505/1087 (density 6)
(c) DLAs in SDSS-DR7 (Noterdaeme+, 2009)
J/A+A/547/L1 (density 6)
(c) SDSS-III DR9 DLA catalogue (Noterdaeme+, 2012)
J/A+A/669/A135 (density 6)
(c) SDSS QSOs Al III and C III] emission lines (Buendia-Rios+, 2023)
J/AJ/136/181 (density 6)
Spectroscopy of PC 1643+4631A,B (Casey+, 2008) spectrum
(absolute spectra
J/AJ/143/145 (density 6)
(c) Emission-line objects from ALFALFA H{alpha} survey (Kellar+, 2012)
J/AJ/159/216 (density 6)
(c) Ions density in the CGM of low mass galaxy groups (Pointon+, 2020)
J/AJ/161/45 (density 6)
(c) KODIAQ DR3: 727 quasars (0.1<zem<6.4) with ESI (O'Meara+, 2021)
J/MNRAS/266/317 (density 6)
(c) Quasars in ESO/SERC field 927 (Clowes+, 1994)
J/MNRAS/371/495 (density 6)
(c) Catalogue of 1806 MgII absorbers from SDSS DR3 (Bouche+, 2006)
J/MNRAS/498/1951 (density 6)
(c) Lyman limit systems in large quasar surveys (Fumagalli+, 2020) spectrum
J/MNRAS/499/5022 (density 6)
(c) MUSE Analysis of Gas around Galaxies II (Dutta+, 2020)
J/MNRAS/502/4743 (density 6)
(c) Census of circumgalactic MgII at redshift z=<0.5 (Huang+, 2021)
J/MNRAS/506/4389 (density 6)
(c) Thermal parameters of the IGM at 2 <= z <= 4 (Gaikwad+, 2021)
J/MNRAS/518/5590 (density 6)
(c) New quasars Ca II absorbers with SDSS spectra (Fang+, 2023)
J/ApJ/862/50
(c) Origin of Metals around Galaxies. I. (Mas-Ribas+, 2018)
J/ApJ/923/44
(c) Galaxy-absorber pairs for low-z QSO sightlines (Scott+, 2021)
J/ApJ/960/34
(c) Quasars from DESI SV data in the COSMOS/HSC fields (Zou+, 2024)
J/MNRAS/521/289
(c) XQR-30 quasars absorption systems properties (Davies+, 2023) spectrum/pdf
ALL or (c) indicates tables which contain celestial coordinates
