7C 1821+6419 , the SIMBAD biblio

7C 1821+6419 , the SIMBAD biblio (601 results) C.D.S. - SIMBAD4 rel 1.8 - 2024.04.24CEST00:17:56

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Keywords 		in a table in teXt, Caption, ... Nb occurence Nb objects in ref Citations
(from ADS) 		Title First 3 Authors
1979ApJS...40..657M 176 174 New hard X-ray sources observed with HEAO A-2. MARSHALL F.E., BOLDT E.A., HOLT S.S., et al.
1980AnTok..18...55N viz 587 63 A search for ultraviolet-excess objects. NOGUCHI T., MAEHARA H. and KONDO M.
1982Ap&SS..82....3A 472 20 Second catalogue of X-ray sources. AMNUEL P.R., GUSEINOV O.H. and RAKHAMINOV S.Y.
1982PASJ...34..407N 80 9 Proper motions of ultraviolet-excess objects. NOGUCHI T., YUTANI M. and MAEHARA H.
1983BAAS...15..914P 2 ~ Soft X-ray active galactic nuclei. PRAVDO S.H. and MARSHALL F.E.
1984ApJ...281..570P 15 58 Soft X-ray active galactic nuclei. PRAVDO S.H. and MARSHALL F.E.
1984ApJS...56..507W viz 900 396 The HEAO A-1 X-ray source catalog. WOOD K.S., MEEKINS J.F., YENTIS D.J., et al.
1984BAAS...16..480S 2 0 X-ray variability in active galactic nuclei observed with HEAO A-1. SNYDER W.A. and WOOD K.S.
1984BAAS...16..933S 5 0 Long-term X-ray monitoring of 4 active galactic nuclei. SNYDER W.A. and WOOD K.S.
1986ApJ...308..815N 180 180 Quasars measured by the Infrared Astronomical Satellite. NEUGEBAUER G., MILEY G.K., SOIFER B.T., et al.
1986ApJS...61..353S 20 2 An intermediate-sensitivity survey at high galactic latitude with HEAO A-1. SHRADER C.R., WOOD K.S. and MATILSKY T.
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.
1986Natur.320..421B 1 28 164 Limits of X-ray variability in active galactic nuclei. BARR P. and MUSHOTZKY R.F.
1986PPMtO...5..190L 21 0 Analysis of X-ray time variability in active galactic nuclei. LIU R.-L.
1987AJ.....94.1271W 102 40 Spectral types for objects in the Kiso survey. III. Data for 102 stars. WEGNER G., McMAHAN R.K. and BOLEY F.I.
1988AcASn..29...38L 29 0 The masses of active galactic nuclei. LIU R.-L.
1988ComAp..12..287K 20 6 X-ray observations with the Ginga satellite. KOYAMA K.
1988Natur.333..495T 6 1 The shifting centre. TRIMBLE V.
1989A&A...219...87C 47 90 The nature of radio-quiet quasars. CHINI R., KREYSA E. and BIERMANN P.L.
1989A&A...223L...1G 9 9 Discovery of two bright low-redshift quasars by the Hamburg quasar survey. GROOTE D., HEBER U. and JORDAN S.
1989ApJ...342..660H 25 67 What is the difference between radio-loud and radio-quiet quasi-stellar objects? HUTCHINGS J.B., JANSON T. and NEFF S.G.
1989ApJS...69....1H 1594 191 The first addition to the new optical catalog of quasi-stellar objects. HEWITT A. and BURBIDGE G.
1989MNRAS.238..917W 72 T                   1 3 24 The X-ray spectrum of
QSO 1821+643. 		WARWICK R.S., BARSTOW M.A. and YAQOOB T.
1990AJ.....99.1907W 107 13 Photoelectric photometry for 106 objects in the Kiso survey. WEGNER G., AFRICANO J.L. and GOODRICH B.
1990ApJS...74..675B 864 48 Associations between quasi-stellar objects and galaxies. BURBIDGE G., HEWITT A., NARLIKAR J.V., et al.
1990BAAS...22.1193K 70 T                   1 2 ~ The continuum energy distribution of the bright QSO
H1821+643. 		KOLMAN M., HALPERN J.P., SHRADER C.R., et al.
1990IAUC.5040....1A 70 T                   2 ~
E1821+64. 		ALLOIN D., BARVAINIS R., ANTONUCCI R., et al.
1991AJ....101..434H 67 64 Evolution of luminous IRAS sources: CCD imaging. HUTCHINGS J.B. and NEFF S.G.
1991AJ....101.2001H 71 T                   1 5 30 Optical imaging of the low redshift superluminous
QSO 1821+643. 		HUTCHINGS J.B. and NEFF S.G.
1991ApJ...367..455K 72 T                   1 4 35 X-ray continuum and evidence for an iron emission line from the quasar
E1821+643. 		KII T., WILLIAMS O.R., OHASHI T., et al.
1991ApJ...371L..51C 23 29 A comparison of C IV and H-beta broad emission-line profiles in low-redshift active galactic nuclei. CORBIN M.R.
1991ApJ...373...57K 71 T                   1 5 30 The ultraviolet spectrum and continuum energy distribtion of the bright quasar
H 1821+643. 		KOLMAN M., HALPERN J.P., SHRADER C.R., et al.
1991ApJ...376..480Z 2 2 20 Variable soft X-ray excesses in active galactic nuclei from nonthermal electron-positron pair cascades. ZDZIARSKI A.A. and COPPI P.S.
1991ApJ...378...77G 236 104 The EXOSAT high galactic latitude survey. GIOMMI P., TAGLIAFERRI G., BEUERMANN K., et al.
1991ApJS...75..645K viz 68 142 An ultraviolet atlas of quasar and blazar spectra. KINNEY A.L., BOHLIN R.C., BLADES J.C., et al.
1991MNRAS.251..529C 6 11 On the magnetic energy density in the X-ray emission of active galactic nuclei. CELOTTI A., GHISELLINI G. and FABIAN A.C.
1991BAAS...23.1344B 4 0 Ultraviolet HST spectra of three small redshift quasars. BAHCALL J.N., JANNUZI B.T., SCHNEIDER D.P., et al.
1992A&A...261...57B 293 121 ROSAT all sky survey observations of IRAS galaxies. BOLLER T., MEURS E.J.A., BRINKMANN W., et al.
1992A&A...265..429A 1 13 56 CO emission from radio quiet quasars: new detection support a thermal origin for the FIR emission. ALLOIN D., BARVAINIS R., GORDON M.A., et al.
1992A&A...266..183U 70 T                   3 6 Multiwavelength observations of the quasar Q 1821+643 during the ROSAT All Sky Survey. ULRICH M.-H., FINK H.H., SCHAEIDT S., et al.
1992AJ....103.1047S 70 T                   12 38 The cluster of galaxies associated with the low-redshift quasar H1821+643. SCHNEIDER D.P., BAHCALL J.N., GUNN J.E., et al.
1992AJ....103.1746N 108 57 Evolution of luminous IRAS sources: radio imaging. NEFF S.G. and HUTCHINGS J.B.
1992AJ....104....1H 1 29 135 Optical imaging of QSOs with 0.5 arcsec resoluton. HUTCHINGS J.B. and NEFF S.G.
1992ApJ...389..157W 3 16 195 The X-ray spectra of high-luminosity active galactic nuclei observed by GINGA. WILLIAMS O.R., TURNER M.J.L., STEWART G.C., et al.
1992ApJ...397...68B 109 T K                 3 47 The ultraviolet absorption spectrum of the quasar
H 1821+643 (z = 0.297). 		BAHCALL J.N., JANNUZI B.T. and SCHNEIDER D.P.
1992ApJ...398..495B 1 6 27 The near-ultraviolet spectrum of Markarian 205. BAHCALL J.N., JANNUZI B.T., SCHNEIDER D.P., et al.
1992ApJ...399L..19B 1 9 56 Submillimeter observations of radio-quiet quasars and luminous Seyfert 1 galaxy including the first detections. BARVAINIS R., ANTONUCCI R. and COLEMAN P.
1992ApJS...80..257E 823 245 The Einstein Slew Survey. ELVIS M., PLUMMER D., SCHACHTER J., et al.
1992MNRAS.256..404L 59 25 A complete sample of radio sources in the North Ecliptic Cap, selected at 38 MHz - I. The radio data. LACY M., RAWLINGS S. and WARNER P.J.
1992MNRAS.258..828L 72 T                   3 29 The radio properties and environment of the remarkable radio-quiet quasar E 1821+643. LACY M., RAWLINGS S. and HILL G.J.
1992MNRAS.259..743L 30 61 Radio-loud and radio-quiet quasars observed by EXOSAT. LAWSON A.J., TURNER M.J.L., WILLIAMS O.R., et al.
1992PASP..104..711K 3 0 Multiwavelength spectroscopy of active galactic nuclei. KOLMAN M.
1992ARA&A..30..391B 66 21 X-ray astronomy missions. BRADT H.V.D., OHASHI T. and POUNDS K.A.
1992AGAb....7..180L 3 0 The bubble-wall interpretation of absorption forests: effects of evolution. LIEBSCHER D.-E.
1993A&A...274..105W 1 59 341 The ultraviolet to soft X-ray bump of Seyfert 1 type active galactic nuclei. WALTER R. and FINK H.H.
1993ApJ...402..493C 1 7 35 Equilibrium slab models of Lyman-alpha clouds. CHARLTON J.C., SALPETER E.E. and HOGAN C.J.
1993ApJ...402..514K 107 T K                 8 34 Simultaneous ROSAT, GINGA, VLA, IUE and optical observations of the bright quasar
H 1821+643. 		KOLMAN M., HALPERN J.P., SHRADER C.R., et al.
1993ApJ...404...94K 15 43 An infrared study of hot dust in quasars using prism spectrophotometry. KOBAYASHI Y., SATO S., YAMASHITA T., et al.
1993ApJ...404..124S 3 5 61 Observations of the gaseous galactic halo toward 3C 273 with the Goddard high resolution spectrograph. SAVAGE B.D., LU L., WEYMANN R.J., et al.
1993ApJ...404..551O 3 8 106 The nature and structure of active galactic nuclei. OSTERBROCK D.E.
1993ApJ...405..491B 1 4 21 The ultraviolet absorption spectrum of the quasar PKS 0405-12 and the local density of Lyman-alpha absorption systems. BAHCALL J.N., JANNUZI B.T., SCHNEIDER D.P., et al.
1993ApJ...413L..15I 1 38 201 The X-ray Baldwin effect. IWASAWA K. and TANIGUCHI Y.
1993ApJ...413..116S 1 16 87 The Hubble Space Telescope quasar absorption line key project. III. First observational results on Milky Way gas. SAVAGE B.D., LU L., BAHCALL J.N., et al.
1993ApJ...415..517Z 140 54 Does a luminosity-dependent continuum shape cause the Baldwin effect? ZHENG W. and MALKAN M.A.
1993ApJ...418..638Y 106 T K                 4 6 A BBXRT observation of the high-luminosity quasar
H 1821+643. 		YAQOOB T., SERLEMITSOS P.J., MUSHOTZKY R.F., et al.
1993ApJS...87....1B 1 48 267 The Hubble Space Telescope quasar absorption line key project. I. First observational results, including Lyman-Alpha and Lyman-limit systems. BAHCALL J.N., BERGERON J., BOKSENBERG A., et al.
1993ApJS...87...45S 6 5 135 The Hubble Space Telescope quasar absorption line key project. II. Data calibration and absorption-line selection. SCHNEIDER D.P., HARTIG G.F., JANNUZI B.T., et al.
1993ApJS...87..451H viz 14       D               7278 328 A revised and updated catalog of quasi-stellar objects. HEWITT A. and BURBIDGE G.
1993MNRAS.260...77P viz 479 332 The ROSAT Wide Field Camera all-sky survey of extreme-ultraviolet sources. I. The bright source catalogue. POUNDS K.A., ALLAN D.J., BARBER C., et al.
1993MNRAS.262...63S 25 41 The soft X-ray excesses of high-luminosity AGN. SAXTON R.D., TURNER M.J.L., WILLIAMS O.R., et al.
1993MNRAS.263..607H 1 13 94 Thermal dust emission from quasars. I. Submillimetre spectral indices of radio-quiet quasars. HUGHES D.H., ROBSON E.I., DUNLOP J.S., et al.
1993MNRAS.263..707L 147 31 A complete sample of sources in the North Ecliptic Cap ,selected at 38 MHz. II. CCD observations and their implications. LACY M., HILL G.J., KAISER M.-E., et al.
1993MNRAS.265..664G 1 32 167 On the nature of rapid X-ray variability in active galactic nuclei. GREEN A.R., McHARDY I.M. and LEHTO H.J.
1993PASP..105..447M 20 3 Recent results from the Hubble Space Telescope. MARAN S.P. and KINNEY A.L.
1993BAAS...25..792L 71 T                   2 ~ HUT observations of the quasar
E 1821+64. 		LEE G., KRISS G.A., ZHENG W., et al.
1993BAAS...25.1326M 5 ~ High S/N observations of low-ionization gas through the galactic halo. MEYER D.M., ROTH K.C., SAVAGE B.D., et al.
1993BAAS...25.1474L 5 ~ Observational tests for accretion disks in AGN. LEE G.
1994A&A...284..764B 48 19 The Hamburg Quasar Monitoring program (HQM) at Calar Alto I. Low amplitude variability in quasars. BORGEEST U. and SCHRAMM K.-J.
1994A&A...285..119W 2 9 100 Simultaneous observations of Seyfert 1 galaxies with IUE, ROSAT and Ginga. WALTER R., ORR A., COURVOISIER T.J.-L., et al.
1994A&A...285..812B viz 70 44 Spectral properties of X-ray loud extragalactic radio sources. BRINKMANN W. and SIEBERT J.
1994A&A...291...74P 92 56 Systematic study of the ultraviolet variability of active galactic nuclei. PALTANI S. and COURVOISIER T.J.-L.
1994A&AS..104..473S 34 6 The Hamburg Quasar Monitoring program (HQM) at Calar Alto. II. Lightcurves of weakly variable objects SCHRAMM K.-J., BORGEEST U., KUEHL D., et al.
1994ApJ...420..143I 1 5 26 X-ray continuum and iron K emission line from the radio galaxy 3C 390.3. INDA M., MAKISHIMA K., KOHMURA Y., et al.
1994ApJ...436L..51F 9 29 Fe K emission from the hidden quasar IRAS P09104+4109. FABIAN A.C., SHIOYA Y., IWASAWA K., et al.
1994ApJS...94..517M 204 38 High-energy spectra of active galactic nuclei. I. The catalog. MALAGUTI G., BASSANI L. and CAROLI E.
1994PASP..106..646K viz 3193 29 The HST quasar absorption-line key project. VIII. CCD imaging of Hubble Space Telescope quasar fields. KIRHAKOS S., SARGENT W.L.W., SCHNEIDER D.P., et al.
1994AcApS..14..197F 5 0 Changes of QSO color indices with redshift. FAN X.-H. and CHEN J.-S.
1994BAAS...26..902S 2 ~ Detection of highly ionized nitrogen at large galactocentric distances. SAVAGE B.D., LU L. and SEMBACH K.R.
1994IAUS..159...73I 9 6 Ginga obbservations of active galactic nuclei. INOUE H.
1994IAUS..159..330O 9 1 Simultaneous observations of Seyfert 1 galaxies with IUE, Rosat and Ginga. OOR A., WALTER R., COURVOISIER T.J.L., et al.
1994IAUS..159..484K 12 0 Structure and emission line spectrum of an X-ray heated accretion disk in AGN. KO Y.-K. and KALLMAN T.R.
1995A&A...297L..55W 6 14 Detection of QSO Ton S 180 by the EUVE satellite. WISOTZKI L., DREIZLER S., ENGELS D., et al.
1995A&A...298..375F viz 174 165 The jet-disk symbiosis. II.Interpreting the radio/UV correlations in quasars. FALCKE H., MALKAN M.A. and BIERMANN P.L.
1995A&A...302..364S 37 41 Distance and metallicity limits of high-velocity clouds. SCHWARZ U.J., WAKKER B.P. and VAN WOERDEN H.
1995A&A...303..449R 13 4 Multiwavelength observations of the bright QSO HS 0624+6907. REIMERS D., HOPP U., CLAVEL J., et al.
1995A&AS..109..147B viz 629 94 The ROSAT AGN content of the 87GB 5 GHz survey: bulk properties of previously optically identified sources. BRINKMANN W., SIEBERT J., REICH W., et al.
1995A&AS..110..419V viz 2780 24 The 7C survey of radio sources at 151 MHz - a 418-square-degree region centred at RA 17h, Dec. 65deg. VISSER A.E., RILEY J.M., ROETTGERING H.J.A., et al.
1995ApJ...440..435L 239 354 The IUE survey for damped Lyman-alpha and Lyman-limit absorption systems: evolution of the gaseous content of the universe. LANZETTA K.M., WOLFE A.M. and TURNSHEK D.A.
1995ApJ...440..606Z 33 35 Relation between O VI emission and X-ray intensity in active galactic nuclei. ZHENG W., KRISS G.A. and DAVIDSEN A.F.
1995ApJ...440..610S 44 28 Emission spectrum integrated over an accretion disk: comparison with observations of active galactic nuclei. SHIMURA T. and TAKAHARA F.
1995ApJ...444..632Z 1 7 31 Astro-1 and ground-based observations of Markarian 335 : evidence for an accretion disk. ZHENG W., KRISS G.A., DAVIDSEN A.F., et al.
1995ApJ...446..150P 107 T K                 13 14 The nature of radio emission in

QSO 1821+643, a radio-quiet quasar with radioloud properties. 		PAPADOPOULOS P.P., SEAQUIST E.R., WROBEL J.M., et al.
1995ApJ...449..145S 110 T K                 3 44 Probing the galactic disk and halo. III. The galactic and intergalactic sight line to H1821+643. SAVAGE B.D., SEMBACH K.R. and LU L.
1995ApJ...451..616S 1 11 51 Discovery of highly ionized high-velocity clouds toward Markarian 509. SEMBACH K.R., SAVAGE B.D., LU L., et al.
1995ApJ...454...50X 46 13 A signature of relativistic electron-positron beams in BL Lacertae objects. XIE G.Z., LIU B.F. and WANG J.C.
1995ApJS...96..303W viz 79 9 Calibrating the broad band X-ray telescope. WEAVER K.A., ARNAUD K.A., BOLDT E.A., et al.
1995ApJS...97....1L viz 143 145 The Hubble Space Telescope quasar absorption line key project. X. Galactic H I 21 centimeter emission toward 143 quasars and active galactic nuclei. LOCKMAN F.J. and SAVAGE B.D.
1995MNRAS.274L...9B 71 T                   7 17 A multi-radio-frequency study of the radio-quiet quasar E1821+643. BLUNDELL K.M. and LACY M.
1995MNRAS.275...77G 46 46 A ROSAT deep survey. VI. Active and passive X-ray galaxies. GRIFFITHS R.E., GEORGANTOPOULOS I., BOYLE B.J., et al.
1995MNRAS.276....1N 1 9 42 X-ray spectra of two quasars at z > 1. NANDRA K., FABIAN A.C., BRANDT W.N., et al.
1995MNRAS.276..614L viz 406 16 A radio-optical survey of the North Ecliptic Cap. LACY M., RILEY J.M., WALDRAM E.M., et al.
1995PASJ...47..131T 1 6 30 X-ray spectrum of the BL Lacertae object PKS 0548-322 observed with Ginga. TASHIRO M., MAKISHIMA K., OHASHI T., et al.
1996A&A...306..691L 2 9 73 Observational constraints on the nature of low redshift Lyα absorbers. LE BRUN V., BERGERON J. and BOISSE P.
1996ApJ...457...19B 5 8 138 The Hubble Space Telescope quasar absorption line key project. VII. Absorption systems at z abs ≤ 1.3. BAHCALL J.N., BERGERON J., BOKSENBERG A., et al.
1996ApJ...457..542S 5 6 Requirements for investigating the connection between Lyman- alpha absorption clouds and the large-scale distribution of galaxies. SARAJEDINI V.L., GREEN R.F. and JANNUZI B.T.
1996ApJ...464..165N 1 5 27 Evidence for a highly ionized iron emission line in the quasar PG 1116+215. NANDRA K., GEORGE I.M., TURNER T.J., et al.
1996ApJ...464..704H 1 16 82 Hubble Space Telescope ultraviolet spectrum of Arp 102B, the prototypical double-peaked emission-line AGN. HALPERN J.P., ERACLEOUS M., FILIPPENKO A.V., et al.
1996ApJ...465..296H 48 27 Coronal gas in the halo. II. ORFEUS observations of galactic halo stars. HURWITZ M. and BOWYER S.
1996ApJ...468L..91B 37   K                 5 28 Evidence for a black hole in a radio-quiet quasar nucleus. BLUNDELL K.M., BEASLEY A.J., LACY M., et al.
1996ApJ...469..564W 11 7 Temperature distributions of accretion disks in active galactic nuclei. WANG J. and ZHOU Y.
1996ApJ...473..110U 18 24 Strong clustering in the low-redshift lyα forest. ULMER A.
1996ApJS..104..287S viz 2256 12 Ultraviolet imaging telescope near-ultraviolet bright object catalog. SMITH E.P., PICA A.J., BOHLIN R.C., et al.
1996ApJS..106..341M 288 173 Classification of IRAS-selected X-ray galaxies in the ROSAT all-sky survey. MORAN E.C., HALPERN J.P. and HELFAND D.J.
1996ApJS..107...69C 48 102 Combined ultraviolet and optical spectra of 48 low-redshift QSOs and the relation of the continuum and emission-line properties. CORBIN M.R. and BOROSON T.A.
1996MNRAS.282..117G 98 4 A paradigm revisited: the accretion disc in AGNs and quasars. GONDHALEKAR P.M., ROUILLON-FOLEY C. and KELLETT B.J.
1996ARA&A..34..279S 9 38 1083 Interstellar abundances from absorption-line observations with the Hubble Space Telescope. SAVAGE B.D. and SEMBACH K.R.
1996VA.....40..197F 14 0 The X-ray view of the torus in distant AGN. FABIAN A.C.
1997A&A...319..413B viz 649 112 Broad band energy distribution of ROSAT detected quasars. I. Radio-loud objects. BRINKMANN W., YUAN W. and SIEBERT J.
1997A&A...326..885B 32 15 UV to X-ray spectra of radio-quiet quasars. Comparison with accretion disk models. BRUNNER H., MUELLER C., FRIEDRICH P., et al.
1997AJ....113.1179H 1 7 30 X-ray emission from the host clusters of powerful AGN. HALL P.B., ELLINGSON E. and GREEN R.F.
1997AJ....113.2158S 51 106 Absorption by highly ionized interstellar gas along extragalactic and galactic sight lines. SAVAGE B.D., SEMBACH K.R. and LU L.
1997ApJ...475L...9Z 9 13 Statistical properties of the big blue bump in active galactic nuclei. ZHOU Y.Y., YU K.N., YOUNG E.C.M., et al.
1997ApJ...480..216S 53 54 High-resolution ultraviolet observations of the highly ionized interstellar gas toward radio loops I and IV. SEMBACH K.R., SAVAGE B.D. and TRIPP T.M.
1997ApJ...486..763Y 107 T K                 6 15 Evidence of an ionized iron emission line from the radio-quiet quasar E1821+643 by ASCA. YAMASHITA A., MATSUMOTO C., ISHIDA M., et al.
1997ApJ...488L..91N 10 5 164 On the dependence of the iron K-line profiles with luminosity in active galactic nuclei. NANDRA K., GEORGE I.M., MUSHOTZKY R.F., et al.
1997ApJS..113..311M 92 36 High-energy spectra of active galactic nuclei. II. Absorption in Seyfert galaxies. MALIZIA A., BASSANI L., STEPHEN J.B., et al.
1997MNRAS.284..717K 3 5 48 Dense, thin clouds and reprocessed radiation in the central regions of active galactic nuclei. KUNCIC Z., CELOTTI A. and REES M.J.
1997MNRAS.286..765A 1 5 19 The ASCA X-ray spectrum of the powerful radio galaxy 3C 109. ALLEN W., FABIAN A.C., IDESAWA E., et al.
1997MNRAS.288..260G 55 3 Soft X-ray colours of Seyfert 1 galaxies and quasars GONDHALEKAR P.M., ROUILLON-FOLEY C. and KELLETT B.J.
1997MNRAS.288..920L 51 90 GINGA observations of the X-ray spectra of quasars. LAWSON A.J. and TURNER M.J.L.
1997MNRAS.289..196S 6 10 X-ray emission from the cluster around E1821 + 643. SAXTON R.D., BARSTOW M.A., TURNER M.J.L., et al.
1997MNRAS.292..105R 1 10 39 Constraining cosmological topology via highly luminous X-ray clusters. ROUKEMA B.F. and EDGE A.C.
1997MNRAS.292..468R 1 27 84 An X-ray survey of quasars using ASCA. REEVES J.N., TURNER M.J.L., OHASHI T., et al.
1997PASP..109..584S viz 3 6 58 The Ultraviolet Imaging Telescope: instrument and data characteristics. STECHER T.P., CORNETT R.H., GREASON M.R., et al.
1997ARA&A..35..217W 3 53 504 High-velocity clouds. WAKKER B.P. and VAN WOERDEN H.
1997RMxAC...6..213M 26 2 Recent ASCA results on active galaxies. MUSHOTZKY R.
1998A&A...329...30R 4 3 44 Evolution of the Lymanα forest from high to low redshift. RIEDIGER R., PETITJEAN P. and MUECKET J.P.
1998A&A...330..108Y viz 848 132 Broad band energy distribution of ROSAT detected quasars. II. Radio-quiet objects. YUAN W., BRINKMANN W., SIEBERT J., et al.
1998A&A...331L..73F 108 T K                 3 6 Extended emission-line gas in the high luminosity, low redshift QSO E1821+643. FRIED J.W.
1998A&A...332..814L 9 8 Lyα absorbers at z≤1: HST-CFHT imaging and spectroscopy in the field of 3C 286. LE BRUN V. and BERGERON J.
1998A&AS..129...87B viz 389 36 ROSAT All-Sky Survey observations of IRAS galaxies. I. Soft X-ray and far-infrared properties. BOLLER T., BERTOLDI F., DENNEFELD M., et al.
1998AJ....115..436S 111 T K                 4 47 The intervening and associated O vi absorption-line systems in the ultraviolet spectrum of
H1821+643. 		SAVAGE B.D., TRIPP T.M. and LU L.
1998AJ....115.1725B 19 26 The metallicity of low-redshift Ly-alpha forest clouds. BARLOW T.A. and TYTLER D.
1998AJ....116.2682C 249 41 The ROSAT/IRAS galaxy sample revisited. CONDON J.J., YIN Q.F., THUAN T.X., et al.
1998ApJ...493....1W 75 45 Emission line and ultraviolet to X-ray continuum correlations: constraints on the anisotropy of the ionizing continuum in active galactic nuclei. WANG T.G., LU Y.J. and ZHOU Y.Y.
1998ApJ...495..152L 1 14 48 The formation of quasars in low-luminosity hosts via galaxy harassment. LAKE G., KATZ N. and MOORE B.
1998ApJ...503..212T 14 34 Detection of an iron K emission line from the LINER NGC 4579. TERASHIMA Y., KUNIEDA H., MISAKI K., et al.
1998ApJ...506....1W 65 159 The Hubble space telescope quasar absorption line key project. XIV. The evolution of Lyα absorption lines in the redshift interval z = 0-1.5. WEYMANN R.J., JANNUZI B.T., LU L., et al.
1998ApJ...508..200T viz 108 T K                 279 154 The relationship between galaxies and low-redshift weak Lyα absorbers in the directions of
H1821+643 and PG 1116+215. 		TRIPP T.M., LU L. and SAVAGE B.D.
1998ApJS..115..225L 24 12 The radial extent and warp of the ionized galactic disk. I. A VLBA survey of extragalactic sources toward the Anticenter. LAZIO T.J.W. and CORDES J.M.
1998MNRAS.297..239B 72 T                   86 13 Ly-alpha absorption in the nearby Universe: the sightline to Q1821+643. BOWEN D.V., PETTINI M. and BOYLE B.J.
1998MNRAS.299..165B 1 14 63 The central engines of radio-quiet quasars. BLUNDELL K.M. and BEASLEY A.J.
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