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Ton 469 , the SIMBAD biblio

Ton 469 , the SIMBAD biblio (420 results) C.D.S. - SIMBAD4 rel 1.8 - 2023.03.27CEST05:35:21

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Keywords 		in a table in teXt, Caption, ... Nb occurence Nb objects in ref Citations
(from ADS) 		Title First 3 Authors
1957BOTT....2p...3I 807 21 Estrellas azules en el casquete galactico norte. IRIARTE B. and CHAVIRA E.
1959MmRAS..68...37E viz 474 194 A survey of radio sources at a frequency of 159 Mc/s. EDGE D.O., SHAKESHAFT J.R., McADAM W.B., et al.
1966ApJS...13...65P viz 735 198 Positions and flux densities of radio sources. PAULINY-TOTH I.I.K., WADE C.M. and HEESCHEN D.S.
1967AJ.....72..738O 492 52 Accurate positions of selected 4C sources. OLSEN E.T.
1968AJ.....73..135G 626 126 Survey of radio sources observed in the continuum near 1420 MHz, declinations -5 to +70. GALT J.A. and KENNEDY J.E.D.
1968AJ.....73..298K 639 89 Measurements of the flux density of discrete radio sources at centimeter wawelengths. I. Observations at 2695 MHz. (11.3cm). KELLERMANN K.I., PAULINY-TOTH I.I.K. and TYLER W.C.
1968AJ.....73..953P 506 86 Measurements of the flux density and spectra of discrete sources at centimeter wavelengths. II. The observations at 5 GHz (6cm). PAULINY-TOTH I.I.K. and KELLERMANN K.I.
1969A&A.....2..477F 136 17 The radiospectra of a homogeneous sample 4C radio sources. FANTI C., FANTI R., LONDRILLO P., et al.
1969ApJ...156..815B 156 32 Polarization of discrete sources at 21.2-cm wavelength, and galactic depolarization. BOLOGNA J.M., McCLAIN E.F. and SLOANAKER R.M.
1970AJ.....75..764O 487 125 Optical identification of radio sources selected from the 4C catalogue. OLSEN E.T.
1970ApJ...162...31K 47 ~ Precise positions of radio sources. II. Optical measurements. KRISTIAN J. and SANDAGE A.
1970ApJ...162..381W 46 76 Precise positions of radio sources. I. Radio measurements. WADE C.M.
1971AJ.....76...25A 18 46 Short-time-scale variability in QSO's. ANGIONE R.J.
1971AJ.....76..412A 50 64 Photoelectric sequences for the brighter QSO's. ANGIONE R.J.
1971ApJ...164..237M 78 48 The radio structures of seventy-nine quasi-stellar objects. MacDONALD G.H. and MILEY G.K.
1971MNRAS.152..477M 128 198 The radio structure of quasars - A statistical investigation. MILEY G.K.
1971MNRAS.153..443T 20 2 Optical monitoring of radio sources - III. Further observations of quasars. TRITTON K.P. and SELMES R.A.
1971PASP...83..611D 202 86 A catalogue of quasars. DE VENY J.B., OSBORN W.H. and JANES K.
1971PASP...83..783P 29 87 Stars observed photoelectrically near quasars and related objects. PENSTON M.J., PENSTON M.V. and SANDAGE A.R.
1972A&AS....5..369F 45 152 Radio emission at 1400 MHz from galactic H II regions. FELLI M. and CHURCHWELL E.
1972A&AS....6....1G 357 76 Optical identification of radio-sources selected from the B2 catalogue. GRUEFF G. and VIGOTTI M.
1972AJ.....77..265P 257 123 The NRAO 5-GHz radio source survey. II. The 140-ft "Strong", "Intermediate", and "Deep" source surveys. PAULINY-TOTH I.I.K., KELLERMANN K.I., DAVIS M.M., et al.
1972AJ.....77..405B viz 573 248 Flux densities, positions, and structures for a complete sample of intense radio sources at 1400 MHz. BRIDLE A.H., DAVIS M.M. and FOMALONT E.B.
1972ApJ...176L..95R 62 341 Infrared photometry of extragalactic sources. RIEKE G.H. and LOW F.J.
1973A&A....23..195B 76 28 Optical identifications of radiosources from the B2 catalogue. Quasi Stellar Sources. BERGAMINI R., BRACCESI A., COLLA G., et al.
1973AJ.....78....1D 628 61 First results from the Texas interferometer: positions of 605 discrete sources. DOUGLAS J.N., BASH F.N., GHIGO F.D., et al.
1973AJ.....78..353A 23 69 QSO historical light curves. ANGIONE R.J.
1973AJ.....78..521W 180 86 Optical identifications of radio sources using accurate radio and optical positions. WILLS B.J., WILLS D. and DOUGLAS J.N.
1973AJ.....78..828K 500 79 Measurements of the flux density and spectra of discrete radio sources at centimeter wavelengths. IV. The observations at 10.7 GHz (2.8 cm). KELLERMANN K.I. and PAULINY-TOTH I.I.K.
1973ApJ...183..805B 33 32 Precise positions of radio sources. IV. Improved solutions and error analysis for 59 sources. BROSCHE P., WADE C.M. and HJELLMING R.M.
1973PASP...85..162A 347 6 A list of quasi-stellar radio sources and quasi-stellar radio-source candidates from the 3C and 4C catalogs between declination -7 deg and +40 deg. AGNEW D. and ARP H.
1974A&A....34..285C 69 4 4850-MHz observations of a sample radio sources identified with quasars. CROVISIER J. and LE SQUEREN A.M.
1974A&A....35...93B 14 22 Photoelectric observations of low radioemission quasars. BATTISTINI P. and BRACCESI A.
1974AJ.....79.1220C 462 84 Spectra of sources in the NRAO 5000-MHz surveys. CONDON J.J. and JAUNCEY D.L.
1974PASP...86..873G 93 55 The degree of optical variability of quasi-stellar objects. GRANDI S.A. and TIFFT W.G.
1975A&A....42..119G 68 T                   1 12 27 Detection of a 21 cm absorption line against the suggested galaxy/QSO pair NGC 3067/
3C 232. 		GREWING M. and MEBOLD U.
1975A&AS...19..143F 132 51 Westerbrok six centimeter observations of a complete sample of quasars from the B2 catalogue. FANTI C., FANTI R., FICARRA A., et al.
1975AJ.....80....1K 178 23 Radio spectra and red shifts of 179 QSOs. KRAUS J.D. and GEARHART M.R.
1975AJ.....80..335S 1095 38 Positions and flux densities of 1075 radio sources at 365 MHz. SHARP J.R. and BASH F.N.
1975AJ.....80..931V 667 82 26.3-MHz radio source survey. II. Radio source positions and fluxes. VINER M.R. and ERICKSON W.C.
1975MNRAS.170...15S 37 45 Optical monitoring of radio sources - IV. Results up to 1973 April. SELMES R.A., TRITTON K.P. and WORDSWORTH R.W.
1975MmSAI..46..461B 493 7 Catalogue of quasi-stellar-objects. BARBIERI C., CAPACCIOLI M. and ZAMBON M.
1976AJ.....81..574P 412 12 Radio two-color diagram for QSOs, spiral galaxies, and BL Lac objets. PACHT E.
1976AJ.....81..913C 10 21 Optical identifications of sources in the Parkes 2.7-GHz selected-areas surveys. CONDON J.J., BALONEK T.J. and JAUNCEY D.L.
1976ApJ...207L..13A 11 26 A BL Lac object near the spiral galaxy NGC 6503. ARP H., SULENTIC J.W., WILLIS A.G., et al.
1977ApJS...35..359G 212 31 Optical identification of 664 Ohio sources using accurate radio and optical positions measured by the Texas interferometers. GHIGO F.D.
1977LicOB.755....1P 19 0 Observations of Fe II emission in Seyfert galaxies and QSOs. PHILLIPS M.M.
1978A&A....67...65D 18 27 Precise optical positions of radio sources in the FK 4-system. Results from a pilot program. DE VEGT C. and GEHLICH U.K.
1978A&A....70...13M 53 1 Statistical analysis of discrepant redshift associations. II. QSO-galaxy and QSO-QSO pairs. MOLES M. and NOTTALE L.
1978AJ.....83..209S 137 16 Optical identifications of radio sources in the NRAO 5-GHz survey - The 'S2' and 'intermediate' surveys. SHAFFER D.B.
1978ApJ...220...42B 79 T                   1 2 118 The existence of Ca II absorption lines in the spectrum of the quasar
3C 232 due to the galaxy NGC 3067. 		BOKSENBERG A. and SARGENT W.L.W.
1978ApJ...221..456C 75 147 Compact radio sources in and near bright galaxies. CONDON J.J. and DRESSEL L.L.
1978ApJ...222L...7B 6 12 Detection of neutral hydrogen absorption at z = 0.045 in the peculiar galaxy 1506+34. BAAN W.A., HASCHICK A.D. and GREENFIELD P.E.
1978ApJS...38..187P 40 186 Permitted Fe II emission in Seyfert 1 galaxies and QSOs. I. Observations. PHILLIPS M.M.
1978MNRAS.184..773B 1 7 42 The absorption-line spectrum of Q 1246-057. BOKSENBERG A., CARSWELL R.F., SMITH M.G., et al.
1978PASP...90..337P 122 60 Absorption in the spectra of Quasi-Stellar Objects and BL Lacertae objects. PERRY J.J., BURBIDGE E.M. and BURBIDGE G.R.
1978AcA....28..367M viz 2023 27 The Green Bank second survey of extragalactic radio sources at 1400 MHz. The catalogue of sources. MACHALSKI J.
1978LicOB.779....1G 10 0 On the possible identification of Mg II lambda 2934 emission in QSOs. GRANDI S.A. and PHILLIPS M.M.
1978LicOB.805....1B 34 0 Relative quasar luminosities determined from emission line strengths. BALDWIN J.A., BURKE W.L., GASKELL C.M., et al.
1978LicOB.808....1P 12 1 Permitted Fe II emission in Seyfert 1 galaxies and QSOs. II. The excitation mechanism. PHILLIPS M.M.
1979A&A....77...86A 63 11 A Westerbork 1415 MHz survey of radio sources. ARP H.C., DE RUITER H.R. and WILLIS A.G.
1979A&AS...35..391B 34 50 A study of the optical variability of the quasistellar objects in the 13h +36 field -I: The blue magnitudes. BONOLI F., BRACCESI A., FEDERICI L., et al.
1979A&AS...37..551B 35 18 Survey of the optical variability of compact extragalactic objects. III. Objects from 23h to 11h. BARBIERI C., ROMANO G. and ZAMBON M.
1979AJ.....84..707P 71 66 Radio structures of a complete sample of quasars from the 4C catalog. POTASH R.I. and WARDLE J.F.C.
1979ApJ...230...79N 1 39 350 Absolute spectral energy distribution of quasi-stellar objects from 0.3 to 10 microns. NEUGEBAUER G., OKE J.B., BECKLIN E.E., et al.
1979ApJ...232..659G 20 69 Mg II lambda 2798 emission in QSOs, Seyfert 1 galaxies, and broad-line radio galaxies. GRANDI S.A. and PHILLIPS M.M.
1979ApJ...234...86S 1 8 45 Gas-rich dwarfs and accretion phenomena in early-type galaxies. SILK J. and NORMAN C.
1979LicOB.817....1M 34 0 Relations between the emission spectra and radio structures of quasars. MILEY G.K. and MILLER J.S.
1979LicOB.838....1G 12 0 Mg II lambda 2798 emission in QSOs, Seyfert 1 galaxies, and broad-line radio galaxies. GRANDI S.A. and PHILLIPS M.M.
1979PASJ...31..125S 155 39 Intergalactic magnetic fields and Faraday rotation of extragalactic radio sources. SOFUE Y., FUJIMOTO M. and KAWABATA K.-A.
1980ApJ...242L.145B 2 3 44 Ca II absorption lines in the spectrum of the quasar PKS 2020-370 due to galactic material in the group Klemola 31. BOKSENBERG A., DANZIGER I.J., FOSBURY R.A.E., et al.
1981A&A....96..393S 1 2 10 An H I synthesis study of the galaxy/QSO pair NGC 6503/1749+70.1. SHOSTAK G.S., WILLIS A.G. and CRANE P.C.
1981A&A....98..309T 44 8 On the Hubble diagram for quasars as a corrected for galactic absorption: evidence for a separate class of the most luminous quasars. TEERIKORPI P.
1981AJ.....86..653A 15 37 Optical monitoring of 15 quasars. ANGIONE R.J., MOORE E.P., ROOSEN R.G., et al.
1981ApJ...250..469S 147 127 A spectrophotometric classification of low-redshift quasars and active galactic nuclei. STEINER J.E.
1981MNRAS.194..669B 1 10 51 Detection of Ca II absorption in the spectrum of the QSO 0446-208 due to an intervening galaxy. BLADES J.C., HUNSTEAD R.W. and MURDOCH H.S.
1981ARA&A..19...41W 1 47 298 Absorption lines in the spectra of Quasi-Stellar Objects. WEYMANN R.J., CARSWELL R.F. and SMITH M.G.
1982AJ.....87..477R 3 2 30 NGC 3067: additional evidence for nonluminous matter ? RUBIN V.C., THONNARD N. and FORD W.K.
1982AJ.....87.1132M 246 23 A complete sample of intermediate-strength radio sources selected from the GB/GB2 1400-MHz surveys. I. Radio spectra and optical identifications of sources stronger than 0.55 Jy. MACHALSKI J. and MASLOWSKI J.
1982ApJ...263...79G 2 30 322 A redshift difference between high and low ionization emission-line regions in QSO's-evidence for radial motions. GASKELL C.M.
1982MNRAS.200.1091B 15 37 Optical absorption lines in the high redshift BL Lac object 0215+015. BLADES J.C., HUNSTEAD R.W., MURDOCH H.S., et al.
1982LicOB.927....1G 33 0 A redshift difference between high and low ionization emission-line regions in QSOs-evidence for radial motions. GASKELL C.M.
1982IUE82.......46O 42 ~ The impact of IUE observations on our knowledge. About galaxies and quasars. OKE J.B.
1982IUE82......322M 51 ~ Bibliographical index of objects observed by IUE. MEAD J.M. and BOGGESS A.
1983AJ.....88..239B 42 9 Coherence time for 430-MHz VLBI. BRIGGS F.H.
1983AJ.....88..709H 343 140 Are wide-angle radio-tail QSOs members of clusters of galaxies ? I. VLA maps at 20 cm of 117 radio quasars. HINTZEN P., ULVESTAD J. and OWEN F.
1983ApJ...264...87B 11 34 21 centimeter H I absorption at z = 0.437 against the extended radio structure of 3C 196. BROWN R.L. and MITCHELL K.J.
1983ApJ...272...11P 131 80 Optical variability, absolute luminosity, and the Hubble diagram for QSOs. PICA A.J. and SMITH A.G.
1983ApJS...51..171P 162 81 The Case low-dispersion northern sky survey. I. PESCH P. and SANDULEAK N.
1983MNRAS.203..861C 66 11 Optical positions of quasars. CLEMENTS E.D.
1983Afz....19..449W 38 ~ An attempt of identifying QSO spectral absorption lines with small redshifts. WALTZ I.E. and KOMBERG B.V.
1983MmSAI..54..617B 96 4 Optical variability of Quasi Stellar Objects. BARBIERI C., CRISTIANI S., NARDON G., et al.
1984A&A...133..374B 63 39 The evolution and origin of the sharp metal-rich absorption lines in QSO spectra. BERGERON J. and BOISSE P.
1984ApJ...276..434W 24 37 The broad-band X-ray spectrum of a QSO sample. WORRALL D.M. and MARSHALL F.E.
1984ApJ...277...64O 30 60 The 3000 A bump in quasars. OKE J.B., SHIELDS G.A. and KORYCANSKY D.G.
1984ApJ...279..465M 240 150 A comparison of the properties of highly polarized QSOs versus low-polarization QSOs. MOORE R.L. and STOCKMAN H.S.
1984ApJ...279..485S 142 131 The optical polarization properties of "normal" quasars. STOCKMAN H.S., MOORE R.L. and ANGEL J.R.P.
1984ApJ...284...33R 148 61 Effects of dust on the infrared emission, selected line ratios, and polarization of Seyfert 1 galaxies, broad-line radio galaxies, and quasars. RUDY R.J.
1984ApJS...54..495G 106 44 An imaging survey of fields around quasars. I. A catalog GREEN R.F. and YEE H.K.C.
1984MNRAS.209..697L 37 68 Optical monitoring of radio sources. LLOYD C.
1984PASP...96..583B 6 12 An unsuccessful search for very extended halos around NGC 1300 and M 61. BOTHUN G.D., MARGON B. and BALICK B.
1984AnTok..20..130K viz 588 54 A search for ultraviolet-excess objects. II. KONDO M., NOGUCHI T. and MAEHARA H.
1984ATsir1309....6I 13 2 Determination of optical positions of forteen extragalactic radiosources. INASARIDZE R.Y.
1985A&A...148..226D 13 4 Results from a pilot program for determining precise optical positions of radio sources with the 1.5 m L. Figl-telescope of the Vienna Observatory. DE VEGT C. and PROCHAZKA F.
1985A&A...152..271M 36 24 UBVRI observations of quasars. MOLES M., GARCIA-PELAYO J.M., MASEGOSA J., et al.
1985AJ.....90.1599P 1228 134 A VLBI survey at 2.29 GHz. PRESTON R.A., MORABITO D.D., WILLIAMS J.G., et al.
1985ApJ...291..128K 21 68 The ultraviolet spectra of intermediate-redshift quasars. KINNEY A.L., HUGGINS P.J., BREGMAN J.N., et al.
1985BAAS...17..588S 1 0 The far and extreme ultraviolet spectra of QSOs. SOFIA U.J., BRUHWEILER F.C. and KAFATOS M.
1985IzPul.203...28K 57 0 Astrometry from optical positions of extragalactic radio sources. KUMKOVA I.I.
1985RMxAA..11..121D 69 T                   1 2 4 Absolute spectrophotometry of quasars : Ton 469 (
3C 232) and 3C 249.1. 		DULTZIN-HACYAN D.
1986A&A...155L...8B 4 6 104 The Mg II absorption system in the QSO PKS 2128-12 : a galaxy disc/halo with a radius of 65 kpc. BERGERON J.
1986A&A...166...27C 39 88 The emission spectrum of active galactic nuclei. II. High column density photoionization models and low ionization lines. COLLIN-SOUFFRIN S., DUMONT S., JOLY M., et al.
1986A&A...168....6B 34 14 Nature of the Za - Ze absorption line systems in the QSOs PKS 1912-54 and PKS 2135-14. BERGERON J. and BOISSE P.
1986A&A...169....1B 2 15 162 Absorption line systems in QSO spectra : properties derived from observations and from photoionization models. BERGERON J. and STASINSKA G.
1986A&AS...64..557R 46 22 VLA observations of B2 quasars. I. Extended sources. ROGORA A., PADRIELLI L. and DE RUITER H.R.
1986AJ.....91..354Y 661 25 On optical studies of high-velocity clouds. YORK D.G., BURKS G.S. and GIBNEY T.B.
1986AJ.....91..998M 104 10 The GB/GB2 sample of intermediate-strength quasars. MACHALSKI J. and CONDON J.J.
1986ApJ...302...56W 70 261 Relativistic beaming and quasar emission lines. WILLS B.J. and BROWNE I.W.A.
1986ApJ...302..272M 37 35 Extent of ionized calcium in the outer parts of galaxies. MORTON D.C., YORK D.G. and JENKINS E.B.
1986ApJ...303L..31B 72 T                   1 1 9 The unusual ultraviolet variability of the QSO
3C 232. 		BRUHWEILER F.C., KAFATOS M. and SOFIA U.J.
1986MNRAS.218..265P 43 73 The statistics of radio emission from quasars. PEACOCK J.A., MILLER L. and LONGAIR M.S.
1986MNRAS.220....1S 67 18 Absorption lines and the radio structure of quasars. SWARUP G., SAIKIA D.J., BELTRAMETTI M., et al.
1986MNRAS.220..927M 37 47 Interstellar absorption lines in the directions of extragalactic objects. II. Analysis of 25 sight lines. MORTON D.C. and BLADES J.C.
1986MNRAS.222..787M 231 29 A search for QSOs in the fields of nearby galaxies - II. NGC 55, 253, 300 and 5364. MONK A.S., PENSTON M.V., PETTINI M., et al.
1986Ap&SS.118..473C 31 0 QSO absorption lines (invited rewiew). CHEN J.-S.
1986BAAS...18..969C 3 0 Coincident 21 cm and CaII absorption towards PKS 2020-370. CARILLI C.L. and VAN GORKOM J.H.
1987A&A...180....1B 1 6 39 Comprehensive study of the QSO-galaxy pair 1327-206 and the extent of low ionization galactic haloes. BERGERON J., D'ODORICO S. and KUNTH D.
1987AJ.....94.1156H 129 26 The visually brightest early-type supergiants in the spiral galaxies NGC 2403, M 81, and M 101. HUMPHREYS R.M. and AARONSON M.
1987ApJ...314..145K 19 41 The ultraviolet spectra of intermediate-redshift quasars. II. KINNEY A.L., HUGGINS P.J., GLASSGOLD A.E., et al.
1987AbaOB..62..140I 35 ~ Accurate positions of intermediate reference stars around radio optical sources. INASARIDZE R.Y.
1987Ap&SS.134...35Y 315 2 The spectral properties of quasars. YU K.N.
1988A&A...191....1B 10 22 Crowding on the sight line to the QSO PHL 1226: the nearby galaxy IC 1746 and a galaxy cluster at Z=0.16. BERGERON J., BOULADE O., KUNTH D., et al.
1988A&AS...75..317S 296 142 Millimeter continuum measurements of extragalactic radio sources. STEPPE H., SALTER C.J., CHINI R., et al.
1988AJ.....96...24X 1 11 49 The optical variability of two X-ray selected and line radio-selected BL Lac. XIE G.Z., LI K., ZHOU Y., et al.
1988ApJ...332...96L 130 36 An investigation of Lyman-limit absorption in QSO spectra: indirect evidence for evolution of the multicomponent nature of the absorbers. LANZETTA K.M.
1988MNRAS.231.1065M 40 11 UBVRI photometry of bright GB/GB2 radio galaxies and quasars. MACHALSKI J. and WISNIEWSKI W.Z.
1988MNRAS.233..801O 104 92 The ultraviolet continuum of quasars -I. The shape of the continuum, continuum reddening and intervening absorption. O'BRIEN P.T., GONDHALEKAR P.M. and WILSON R.
1988MNRAS.233..845O 58 23 The ultraviolet continuum of quasars -II. Continuum variability. O'BRIEN P.T., GONDHALEKAR P.M. and WILSON R.
1988Ap&SS.141..303B 676 71 Catalogue of unambiguous (Faraday-thin, one-component, spectrum-selected) rotation measures for galaxies and quasars. BROTEN N.W., MacLEOD J.M. and VALLEE J.P.
1988BAAS...20.1027C 2 ~ 3C 232 and NGC 3067 : quasars, galaxies and absorption lines. CARILLI C.L., VAN GORKOM J.H. and STOCKE J.
1988IUE88...2...69K 16 ~ Quasars. KAFATOS M.
1988IUE88...2..261O 14 ~ Quasar ultraviolet continuum variability. O'BRIEN P.T., GONDHALEKAR P.M. and WILSON R.
1988IUE88...2..269S 21 ~ Emission features in moderate-redshift QSO spectra shortward of Lymanalpha. SOFIA U.J., BRUHWEILER F.C. and KAFATOS M.
1988IUE88...2..277K 9 ~ IUE quasar atlas. KINNEY A.L., BOHLIN R.C., NEILL J.D., et al.
1989A&A...224..323G 21 4 Optical positions of 21 radio sources in the Brorfelde system. GEFFERT M., TUCHOLKE H.-J., WALTER H.G., et al.
1989ApJ...346...68S 1 61 317 Fitting improved accretion disk models to the multiwavelength continua of quasars and active galactic nuclei. SUN W.-H. and MALKAN M.A.
1989ApJS...69....1H 1594 178 The first addition to the new optical catalog of quasi-stellar objects. HEWITT A. and BURBIDGE G.
1989MNRAS.237..739G 118 8 Ultraviolet spectra of a large sample of quasars. I. Data and data reduction. GONDHALEKAR P.M.
1989MNRAS.239...55P 1 5 23 Spectrophotometric monitoring of high luminosity active galactic nuclei -I. The methods and data. PEREZ E., PENSTEON M.V. and MOLES M.
1989MNRAS.239..289S 23 38 Observational constraints on viscosity in AGN accretion discs. SIEMIGINOWSKA A. and CZERNY B.
1989Natur.338..134C 74 T                   1 2 39 Disturbed neutral hydrogen in the galaxy NGC 3067 pointing to the quasar
3C 232. 		CARILLI C.L., VAN GORKOM J.H. and STOCKE J.T.
1989SoSAO..61...43L 8 0 Metal absorption-line systems of quasars. LEVSHAKOV S.A.
1989TrLen..42....5H 47 1 Optical and infrared polarimetry in extragalactic astrophysics. HAGEN-THORN V.A.
1990A&A...239...33A 363 65 Periodicity of quasar redshifts. ARP H., BI H.G., CHU Y., et al.
1990AJ.....99..323B 136 16 Estimation of the equivalent width of the interstellar Ca II K absorption line. BEERS T.C.
1990AJ.....99.1421B 89 27 Optical variability of extragalactic objects used to tie the HIPPARCOS reference frame to an extragalactic system using HUBBLE SPACE TELESCOPE observations. BOZYAN E.P., HEMENWAY P.D. and ARGUE A.N.
1990AJ....100...96E 7 2 Neutral hydrogen absorption in the radio spectrum of PKS 0241+011. ENGLAND M.N. and GOTTESMAN S.T.
1990AJ....100..343J 8 3 PHL 1226 and IC 1746: a QSO-galaxy pair without Ca II or Na I absorption. JUNKKARINEN V.T. and WOMBLE D.S.
1990AJ....100.1785W 14 30 Ca II and Na I absorption in the QSO S4 0248+430 due to an intervening galaxy. WOMBLE D.S., JUNKKARINEN V.T., COHEN R.S., et al.
1990ApJ...356...14C 43 11 Neutral hydrogen absorption by galaxies and implications for the soft X-ray background. CORBELLI E. and SCHNEIDER S.E.
1990ApJ...358...18C 28 6 A new mechanism for small redshift of H I broad lines with respect to CIV line in quasars. CHENG F.H., YOU J.H. and YAN M.
1990ApJ...359L..37S 2 3 25 Absorption lines in the spectrum of Q 0248+4302 due to a foreground tidal tail. SARGENT W.L.W. and STEIDEL C.C.
1990ApJS...74..675B 864 48 Associations between quasi-stellar objects and galaxies. BURBIDGE G., HEWITT A., NARLIKAR J.V., et al.
1990MNRAS.243..443G 33 40 Ultraviolet spectra of a large sample of quasars - II. Variability of Ly-alpha and C IV emission lines. GONDHALEKAR P.M.
1990MNRAS.246..369L 100 109 Massive thin accretion discs - III. Comparison with the observations. LAOR A.
1990PASP..102..427P 70 T                   1 3 1 Is the quasar
3C 232 embedded in the neutral hydrogen tail of the galaxy NGC 3067 ? 		PESCH P., WESTPFAHL D.J. and SIMKIN S.M.
1990PASP..102..497W 3 ~ Broad [Ne III] line emission and intermediate-density gas around QSO nuclei WEI Z., BURBIDGE E.M. and SMITH H.E.
1990AbaOB..68..191I 9 2 On application of a chronium light filter for determining precise positions of radiosources on astronegatives. INASARIDZE R.I.
1990KFNT....6c..86L 9 ~ The determination of extragalactic radio source positions using reflecting telescopes. LEDOVSKAYA I.V. and PAKULYAK L.K.
1991A&A...242...49J 191 60 Relationship between Fe II and radio emission in active galactic nuclei. JOLY M.
1991A&AS...87..461X 1 10 47 CCD photometry of 10 BL Lacertae objects. XIE G.Z., LI K.H., CHENG F.Z., et al.
1991ApJ...374...72S 75 T                   1 2 40 New observations of the gas cloud associated with the quasar-galaxy pair
3C 232/NGC 3067. 		STOCKE J.T., CASE J., DONAHUE M., et al.
1991ApJS...75..645K viz 68 138 An ultraviolet atlas of quasar and blazar spectra. KINNEY A.L., BOHLIN R.C., BLADES J.C., et al.
1991ApJS...77..203J viz 633 60 A catalog of absorption in the spectra of quasi-stellar objects. JUNKKARINEN V., HEWITT A. and BURBIDGE G.
1991MNRAS.248..153B 4 13 On the absence of interstellar absorption from NGC 4319 in the spectrum of Mrk 205. BOWEN D.V., PETTINI M., PENSTON M.V., et al.
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