4C 39.49 , the SIMBAD biblio

4C 39.49 , the SIMBAD biblio (2026 results) C.D.S. - SIMBAD4 rel 1.8 - 2022.07.04CEST17:51:31

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Title First 3 Authors
1967MNRAS.135..231C 127 94 Identifications of radio sources with bright galaxies. CASWELL J.L. and WILLS D.
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.
1972MNRAS.159..233A 157 58 Precise positions of radio sources measured at 2695 MHz. ADGIE R.L., CROWTHER J.H. and GENT H.
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.
1975AJ.....80..335S 1095 38 Positions and flux densities of 1075 radio sources at 365 MHz. SHARP J.R. and BASH F.N.
1976A&AS...25..287V 68 T                   1 8 20 UBV sequences in the fields of Mrk 421 and
1976AJ.....81..574P 412 12 Radio two-color diagram for QSOs, spiral galaxies, and BL Lac objets. PACHT E.
1976AJ.....81.1031W 264 52 Optical identifications of radio sources using accurate radio and optical positions. II. WILLS B.J.
1976ApJ...205....1K 33 112 Photoelectric magnitudes and polarization data for possible BL Lacertae objects. KINMAN T.D.
1976ApJ...207..725S 11 35 The radio brightness distribution of eight Markarian galaxies. SRAMEK R.A. and TOVMASSIAN H.M.
1977A&A....59..419B 1 9 58 Survey of the optical variability of compact extragalactic objects. I. The field of 3C 345. BARBIERI C., ROMANO G., DI SEREGO S., et al.
1977AJ.....82...21B 456 21 Variability of extragalactic sources at 2.7 GHz II. Flux densities of 550 sources and further evidence for variations. BRIDLE A.H., KESTEVEN M.J.L. and BRANDIE G.W.
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..451P 488 148 The 5-GHz strong source surveys. IV. Survey of the area between declination 35 and 70deg and summary of source counts, spectra and optical identifications. PAULINY-TOTH I.I.K., WITZEL A., PREUSS E., et al.
1978AJ.....83..566M 42 29 High frequency radio observations of Seyfert galaxies. McCUTCHEON W.H. and GREGORY P.C.
1978ApJ...221..456C 75 147 Compact radio sources in and near bright galaxies. CONDON J.J. and DRESSEL L.L.
1978ApJ...224L.103S 73 T                   2 1 28 Identification of
4U 1651+39 with the BL Lacertae object
Markarian 501 with the modulation collimator on HEAO 1.
1978ApJS...38..357F viz 380 578 The fourth UHURU catalog of X-ray sources. FORMAN W., JONES C., COMINSKY L., et al.
1979A&A....74L..11K 19 26 Westerbork observations of flat spectrum galaxies in the 5 GHz 'S4' survey. KAPAHI V.K.
1979A&A....78...46V 47 40 The luminosity function of Seyfert 1 galaxy nuclei and BL Lac objetcs, and the X-ray background. VERON P.
1979A&AS...35..371G 196 21 Optical identification and 5GHz flux measurements of radiosources selected from the B2 catalogue -V. GRUEFF G. and VIGOTTI M.
1979ApJ...232..649B 1 28 149 Galaxies and gamma-ray astronomy. BIGNAMI G.F., FICHTEL C.E., HARTMAN R.C., et al.
1979ApJS...40..657M 176 160 New hard X-ray sources observed with HEAO A-2. MARSHALL F.E., BOLDT E.A., HOLT S.S., et al.
1979ApJS...41..327A 467 26 A catalog of X-ray sources. AMNUEL P.R., GUSEINOV O.H. and RAKHAMINOV S.Y.
1979MNRAS.189..873S 71 T                   1 1 18 Ultraviolet and X-ray observations of the BL Lac object
Mk 501.
1979ApL....20...63C 2 5 High energy X-ray observations of BL Bac objects. COE M.J., DENNIS B.R., DOLAN J.F., et al.
1980AJ.....85..363L 52 39 Variable radio sources: 90-GHz flux densities. LANDAU R., EPSTEIN E.E. and RATHER J.D.G.
1980AJ.....85.1442P 105 93 Long-term optical behavior of 114 extragalactic sources. PICA A.J., POLLOCK J.T., SMITH A.G., et al.
1980AJ.....85.1462K 178 31 Radio survey of Markarian galaxies at 6 and 11 cm. KOJOIAN G., TOVMASSIAN H.M., DICKINSON D.F., et al.
1980ApJ...236...84P 11 22 A recent outburst of AO 0235+164. PICA A.J., SMITH A.G. and POLLOCK J.T.
1980IUE2n......267B 7 ~ Observations of the star-like BL Lac object OI 090.4. BROMAGE G.E., BURTON W.M., PATCHETT B.E., et al.
1981A&A...103..342Z 21 29 Optical brightness variations of BL Lac objects. ZEKL H., KLARE G. and APPENZELLER I.
1981AJ.....86.1585H 23 12 An optical and X-ray survey of S- type Markarian galaxies. HUTTER D.J. and MUFSON S.L.
1981ApJ...243...53W 5 3 76 Variable X-ray spectra of BL Lacertae objects: HEAO 1 observations of PKS 0548-322 and 2A 1219+305. WORRALL D.M., BOLDT E.A., HOLT S.S., et al.
1981ApJ...243..690K 72 T                   1 2 35 Quasi-simultaneous observations of BL Lac object
Mrk 501 in X-ray, UV, visible, IR, and radio frequencies.
1981ApJ...243..700K 21 4 437 Relativistic jets as X-ray and gamma-ray sources. KOENIGL A.
1981ApJ...247...48P 5 24 Nonstellar 10 micron emission from E/S0 galaxies with compact radio sources. PUSCHELL J.J.
1981ApJ...248...61P 51 95 The milli-arcsecond structure of a complete sample of radio sources. I. VLBI maps of seven sources. PEARSON T.J. and READHEAD A.C.S.
1981ApJ...248L..61M 3 10 The detection of X-ray emission from the BL Lacertae object Markarian 180. MUFSON S.L. and HUTTER D.J.
1981ApJS...45...97S viz 419 281 The Faraday rotation measures of extragalactic radio sources. SIMARD-NORMANDIN M., KRONBERG P.P. and BUTTON S.
1981MNRAS.197..893M 140 138 The Ariel V (3A) catalogue of X-ray sources. II. Sources at high galactic latitude (|b| > 10 deg). McHARDY I.M., LAWRENCE A., PYE J.P., et al.
1981PASP...93..681M 3 5 97 The galaxy components of BL Lacertae objects, N systems, and quasi-stellar objects. MILLER J.S.
1982ApJ...253..485P 1 88 588 A complete X-ray sample of the high-latitude (b)-20 sky from HEAO 1 A-2: log N-log S and luminosity functions. PICCINOTTI G., MUSHOTZKY R.F., BOLDT E.A., et al.
1982ApJ...255...39R 56 54 Compact radio sources: the dependence of variability and polarization on spectral shape. RUDNICK L. and JONES T.W.
1982ApJ...258...53H 71 T                   1 2 29 CCD photometry of Markarian 421 and
1982ApJ...261...12U 1 4 20 Ultraviolet and X-ray observations of the BL Lacertae PKS 0548-322. URRY C.M., MUSHOTZKY R.F., KONDO Y., et al.
1982ApJ...262..460E 36 62 1 millimeter continuum observations of quasars. ENNIS D.J. and NEUGEBAUER G.
1982ApL....23...17C 2 4 A search for short time variability in the radio emission from active galaxies. COE M.J., BOWRING S.R., HALL C.J., et al.
1982Ap&SS..82....3A 471 20 Second catalogue of X-ray sources. AMNUEL P.R., GUSEINOV O.H. and RAKHAMINOV S.Y.
1982SvA....26..371L 12 0 X-ray astronomy. LIPUNOV V.M. and SIL'CHENKO O.K.
1982IAUS...97..279R 48 21 The milliarcsecond structure of radio galaxies and quasars. READHEAD A.C.S. and PEARSON T.J.
1982IAUS...97..335A 15 4 Cm-wavelength fluxes and polarizations of compact extra-galactic X-ray sources. ALLER M.F., ALLER H.D. and HODGE P.E.
1982IUE82.......46O 42 ~ The impact of IUE observations on our knowledge. About galaxies and quasars. OKE J.B.
1982IUE82......189H 69 T                   1 2 ~ Coordinated observations of
Markarian 501 at ultraviolet, X-ray, optical, and radio wavelengths.
1982IUE82......322M 51 ~ Bibliographical index of objects observed by IUE. MEAD J.M. and BOGGESS A.
1982IUE82......335H 7 ~ Spectral anomalies in low-dispersion SWP images. HACKNEY R.L. and HACKNEY K.R.H.
1983A&A...125...52B 54 80 Super-Eddington luminosity characteristics of active galactic nuclei. BASSANI L., DEAN A.J. and SEMBAY S.
1983ApJ...264...92T 36 90 The absence of rapid X-ray variability in active galaxies. TENNANT A.F. and MUSHOTZKY R.F.
1983ApJ...266...18U 1 14 71 The arc second radio structure of 12 BL Lacertae objects. ULVESTAD J.S., JOHNSTON K.J. and WEILER K.W.
1983ApJ...266..459S 29 77 Studies of BL Lac objects with the Einstein X-ray Observatory : the absolute volume density. SCHWARTZ D.A. and KU W.H.M.
1983ApJ...272...11P 131 80 Optical variability, absolute luminosity, and the Hubble diagram for QSOs. PICA A.J. and SMITH A.G.
1983ApJ...272..400H 27 43 An infrared and optical investigation of galactic nuclei with compact radio sources. HECKMAN T.M., LEBOFSKY M.J., RIEKE G.H., et al.
1983ApJ...274L..19A 2 1 13 Dramatic variations in the polarization of BL Lacertae shocks and gas ? ALLER H.D., HODGE P.E. and ALLER M.F.
1983ApJ...275..467M 15 53 X-ray studies of BL Lacertae objects with the Einstein Observatory : confrontation with the synchrotron self-compton predictions. MADEJSKI G.M. and SCHWARTZ D.A.
1983ApJS...51....1N 118 78 HEAO A-2 soft X-ray source catalog. NUGENT J.J., JENSEN K.A., NOUSEK J.A., et al.
1983MNRAS.202..397I 8 11 Multiaperture infrared photometry of extragalactic radio sources. IMPEY C.D.
1983MNRAS.204p..23B 10 ~ Is it possible to turn an elliptical radio galaxy into a BL Lac object ? BROWNE I.W.A.
1983PASP...95..724S 12 38 0.35-3.5 micron photometry of polarized QSOs. SITKO M.L., STEIN W.A. and ZHANG Y.-X.
1983PASP...95..842S 284 74 10.8-GHz flux density variations among a complete sample of sources from the NRAO-Bonn S4 survey. SEIELSTAD G.A., PEARSON T.J. and READHEAD A.C.S.
1983Ap&SS..91...35C 13 4 A study of the long-term variability in radio emission of active galaxies. COE M.J., BOWRING S.R., HALL C.J., et al.
1983BAAS...15..876H 69 T                   1 3 1 Coordinated multifrequency observations and source models of the BL Lac Objects MRK 180, MRK 421, and
MRK 501.
1983MmSAI..54..399M 24 2 Far ultraviolet observations of BL Lac objects. MARASCHI L., TANZI E.G. and TREVES A.
1983MmSAI..54..617B 96 4 Optical variability of Quasi Stellar Objects. BARBIERI C., CRISTIANI S., NARDON G., et al.
1984A&A...130....1B 10 13 A search for radio recombination lines from extragalactic objects. BELL M.B., SEAQUIST E.R., MEBOLD U., et al.
1984A&A...130..191A 380 75 A catalog of selected compact radio sources for the construction of an extragalactic radio/optical reference frame. ARGUE A.N., DE VEGT C., ELSMORE B., et al.
1984A&A...133...27Z 55 51 VLBI study of 57 flat spectrum radio sources at 5 GHz. ZENSUS J.A., PORCAS R.W. and PAULINY-TOTH I.I.K.
1984A&A...139...55F 145 49 Statistical properties of the radio cores in elliptical galaxies. FERETTI L., GIOVANNINI G., GREGORINI L., et al.
1984A&AS...56..415B 90 12 A catalogue of X-ray spectra observed with the Ariel V proportional counter (Experiment C). BELL BURNELL S.J. and CHIAPPETTI L.
1984A&AS...58..317T 53 5 The radio emission of Markarian galaxies at lambda 11 cm. TOVMASSIAN H.M., SHERWOOD W.A., SHERWOOD V.E., et al.
1984AJ.....89..189U 19 37 A search for arcminute-scale radio emission in BL Lacertae objects. ULVESTAD J.S. and JOHNSTON K.J.
1984AJ.....89..323G 220 21 The low-frequency spectra of a complete sample of extragalactic radio sources. GREGORINI L., MANTOVANI F., ECKART A., et al.
1984AJ.....89..441C 25 86 Continuum distributions of an X-ray observed sample of BL Lac objects. CRUZ-GONZALEZ I. and HUCHRA J.P.
1984AJ.....89.1111H 241 81 Flickering of extragalactic radio sources. HEESCHEN D.S.
1984ApJ...276..466U 14 29 Variability of the ultraviolet spectrum of BL Lacertae objects. ULRICH M.H., HACKNEY K.R.H., HACKNEY R.L., et al.
1984ApJ...278..499A 1 32 201 Optical spectropolarimetry of radio galaxies. ANTONUCCI R.R.J.
1984ApJ...279...93W 33 114 The radio morphology of blazars and relationships to optical polarization and to normal radio galaxies. WARDLE J.F.C., MOORE R.L. and ANGEL J.R.P.
1984ApJ...284L..23M 1 8 49 On the surface density of X-ray selected BL Lacertae objects. MACCACARO T., GIOIA I.M., MACCAGNI D., et al.
1984ApJS...56..507W viz 900 352 The HEAO A-1 X-ray source catalog. WOOD K.S., MEEKINS J.F., YENTIS D.J., et al.
1984MNRAS.207..883M 26 3 Optical positions of active galaxies. MEURS E.J.A.
1984MNRAS.210..961H 28 43 Infrared polarimetry and photometry of BL Lac objects - III. HOLMES P.A., BRAND P.W.J.L., IMPEY C.D., et al.
1984IzKry..69...78E 93 1 The observations of extragalactic radio sources at 8.2 and 13.5 mm wavelengths. EFANOV V.A., MOISEEV I.G. and NESTEROV N.S.
1984MitAG..62..101B 17 0 First results from the X-ray satellite EXOSAT. BIERMANN P.
1984IAUS..110...15P 65 48 VLBI survey of a complete sample of active nuclei and quasars. PEARSON T.J. and READHEAD A.C.S.
1984IUE84......143M 69 T                   1 3 ~ Coordinated multifrequency observations of the BL Lac objects MRK 180, MRK 421, and
MRK 501.
1985AJ.....90.1599P 1228 134 A VLBI survey at 2.29 GHz. PRESTON R.A., MORABITO D.D., WILLIAMS J.G., et al.
1985ApJ...294..158A 1 55 236 Extended radio emission and the nature of blazars. ANTONUCCI R.R.J. and ULVESTAD J.S.
1985ApJ...297..199S 70 T                   1 2 5 Soft X-ray observations of two BL Lacertae objects: Markarian 421 and
1985ApJ...298..619S 1 20 144 Optical and radio properties of X-ray selected BL Lacertae objects. STOCKE J.T., LIEBERT J., SCHMIDT G., et al.
1985ApJ...298..630L 100 150 The radio-optical-X-ray spectral flux distributions of blazars. LEDDEN J.E. and O'DELL S.L.
1985ApJS...58..255M 18 53 UBVRI observations of BL Lacertae objects. MOLES M., GARCIA-PELAYO J.M., MASEGOSA J., et al.
1985ApJS...59..499A 41 54 VLA maps of 41 radio galaxies. ANTONUCCI R.R.J.
1985ApJS...59..513A 106 364 Spectra and linear polarizations of extragalactic variable sources at centimeter wavelengths. ALLER H.D., ALLER M.F., LATIMER G.E., et al.
1985MNRAS.216..121S 72 T                   1 1 8 IRAS observations of
MKN 501 with quasi-simultaneous observations at radio, near-infrared and ultraviolet wavelengths.
1986A&A...162...16S 70 T                   1 5 11 Wide-band X-ray observations of
MK 501.
1986A&AS...64..135P 56 90 VLA observations of low luminosity radio galaxies. I. Sources with angular size smaller than two arcminutes. PARMA P., DE RUITER H.R., FANTI C., et al.
1986A&AS...65..349P viz 1027 6 On the relation of Markarian galaxies with Zwicky clusters. I. Data. PETROSIAN A.R. and TURATTO M.
1986AJ.....91..354Y 661 25 On optical studies of high-velocity clouds. YORK D.G., BURKS G.S. and GIBNEY T.B.
1986ApJ...300..190D 38 44 A survey of neutral hydrogen absorption in the nuclei of active spiral galaxies. DICKEY J.M.
1986ApJ...301...50H 3 3 39 Application of a relativistic jet model to the study of BL Lacertae objects. HUTTER D.J. and MUFSON S.L.
1986ApJ...301..834V 105 T K                 1 7 13 VLBI and VLA observations of the BL Lacertae-type object
Markarian 501: evidence for grossly misaligned small-scale and large-scale radio structure.
1986ApJ...303...76P 36 14 Active galactic nuclei. I. Central source as a cluster of accreting black holes. PACHOLCZYK A.G. and STOEGER W.R.
1986ApJ...305..369U 2 5 57 X-ray spectroscopy of five BL Lacertae objects. URRY C.M., MUSHOTZKY R.F. and HOLT S.S.
1986ApJ...310..317G 35 102 Spectral properties of blazars. I. Objects in the far-ultraviolet. GHISELLINI G., MARASCHI L., TANZI E.G., et al.
1986ApJS...62..751M 1524 176 A catalog of Markarian galaxies. MAZZARELLA J.M. and BALZANO V.A.
1986MNRAS.218..429S 50 22 Infrared photometry of the nuclei of early-type radio galaxies. SPARKS W.B., HOUGH J.H., AXON D.J., et al.
1986MNRAS.221..739B 29 98 Simultaneous optical and infrared polarization measurements of blazars. BRINDLE C., HOUGH J.H., BAILEY J.A., et al.
1986MNRAS.222..619G 31 2 A relationship between the X-ray luminosity and redshift of extragalactic objects. GIOVANNELLI F. and POLCARO V.F.
1986Afz....24...25J 14 2 A deficiency of normal elliptical galaxies among Markarian galaxies. JOEVEER M.M.
1987A&A...181..244P 81 78 VLA observations of low-luminosity radio galaxies. VI. Discussion of radio jets. PARMA P., FANTI C., FANTI R., et al.
1987A&A...185....9B 56 28 The inverse Compton test for a large sample of compact radio sources. BIERMANN P.L., KUHR H., SNYDER W.A., et al.
1987AJ.....93....1B 87 101 An updated list of BL Lac objects, and their relation to galaxies and quasi stellar objects. BURBIDGE G. and HEWITT A.
1987AJ.....94.1143M 71 T                   1 2 12 Two elliptical galaxies with active nuclei : NGC 6212 and
MKN 501.
1987MNRAS.224..257M 43 46 Beaming in blazars. MADAU G., GHISELLINI G. and PERSIC M.
1987MNRAS.226..137S 9 13 A mid-to far-infrared variability study of eight active galactic nuclei. SEMBAY S., HANSON C.G. and COE M.J.
1987MmSAI..58..273B 2 0 IRAS 1652+395 : a previously unidentified Seyfert galaxy. BASSANI L., COE M.J., MANDOLESI N., et al.
1987IAUS..127..427S 4 0 The discovery of blazar-type nuclei in two nearby radio ellipticals. SPARKS W.B., HOUGH J.C., BRINDLE C., et al.
1988A&A...199...73G 190 134 Radio nuclei in elliptical galaxies. GIOVANNINI G., FERETTI L., GREGORINI L., et al.
1988A&AS...72..347S 1 9 50 Optical monitoring of quasars and BL Lac objects. SILLANPAA A., HAARALA S. and KOHONEN T.
1988A&AS...75..317S 296 142 Millimeter continuum measurements of extragalactic radio sources. STEPPE H., SALTER C.J., CHINI R., et al.
1988AJ.....95...26G 133 145 IRAS observations of radio galaxies. GOLOMBEK D., MILEY G.K. and NEUGEBAUER G.
1988AJ.....95..307I 166 246 Energy distributions of blazars. IMPEY C.D. and NEUGEBAUER G.
1988AJ.....96...30C 179 140 Radio identifications of UGC galaxies: starbursts and monsters. CONDON J.J. and BRODERICK J.J.
1988AJ.....96.1215P 144 131 Long-term optical behavior of 144 compact extragalactic objects: 1969-1988. PICA A.J., SMITH A.G., WEBB J.R., et al.
1988AJ.....96.1731R 35 26 Microarcsecond optical astrometry: an instrument and its astrophysical applications. REASENBERG R.D., BABCOCK R.W., CHANDLER J.F., et al.
1988ApJ...324.1056M 1 9 63 Astrophysical implications and observational prospects of X-ray polarimetry. MESZAROS P., NOVICK R., CHANAN G.A., et al.
1988ApJ...328..114P 1 65 347 The milliarcsecond structure of a complete sample of radio sources. II. First-epoch maps at 5 GHz. PEARSON T.J. and READHEAD A.C.S.
1988ApJ...334..995B 5 4 Upper limits from hard X-ray observations of five BL Lacertae objects. BEZLER M., GRUBER D.E. and TORHSCHILD R.E.
1988MNRAS.230..131P 210 184 The cluster environments of powerful radio galaxies. PRESTAGE R.M. and PEACOCK J.A.
1988MNRAS.235..787G 9 16 The ultraviolet to X-ray continua of BL Lac objects. GEORGE I.M., WARWICK R.S. and McHARDY I.M.
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..741R 5 ~ Hard X-ray observations of five BL Lacertae objects. ROTHSCHILD R.E., GRUBER D.E. and BEZLER M.
1988MmSAI..59..277M 36 12 EXOSAT observations of BL Lac objects. MARASCHI L. and MACCAGNI D.
1988PAZh...14..793A 1 0 Search for the short-time optical light variability of BL Lac type objects Mkn 501. ASLANOV A.A. and LIPUNOVA N.A.
1988TokAB.281.3267K 10 18 The present status of the multi-channel polarimeter at Dodaira. KIKUCHI S.
1988IUE88...2..287G 6 ~ Ultra-violet and X-ray observations of BL Lac type objects. GEORGE I.M., WARWICK R.S. and BROMAGE G.E.
1988IUE88...2..293U 7 ~ Multifrequency spectra of BL Lac objects. URRY C.M., KONDO Y., MUFSON S.L., et al.
1989A&AS...79..283W 208 12 A celestial reference frame based on extragalactic radio sources. WALTER H.G.
1989AJ.....97..708V 66 156 H I absorption in radio elliptical galaxies-evidence for infall. VAN GORKOM J.H., KNAPP G.R., EKERS R.D., et al.
1989AJ.....97..777E 174 358 Accurate galactic N H values towards quasars and AGN. ELVIS M., LOCKMAN F.J. and WILKES B.J.
1989ApJ...344..726B 7 2 A new narrow-line Seyfert 1 galaxy: IRAS 1652+395. BASSANI L., COE M.J., MALKAN M.A., et al.
1989ApJS...69....1H 1594 178 The first addition to the new optical catalog of quasi-stellar objects. HEWITT A. and BURBIDGE G.
1989Ap&SS.158..117L 8 1 Gamma-ray emissions from active galaxies. LAU M.M., YOUNG E.C.M. and YU K.N.
1989TrLen..42....5H 47 1 Optical and infrared polarimetry in extragalactic astrophysics. HAGEN-THORN V.A.
1990A&AS...82...41K viz 752 14 Spectral index distribution for a sample of sources from the B3 catalogue. KULKARNI V.K., MANTOVANI F. and PAULINY-TOTH I.I.K.
1990A&AS...83..183M 1 38 189 Optical and infrared polarimetry and photometry of blazars. MEAD A.R.G., BALLARD K.R., BRAND P.W.J.L., et al.
1990AJ.....99....1K 52 112 Complete samples of radio-selected BL Lac objects. KUHR H. and SCHMIDT G.D.
1990AJ.....99..476K 88 72 Infrared properties of nearby radio galaxies. KNAPP G.R., BIES W.E. and VAN GORKOM J.H.
1990ApJ...356...62I 60 18 Infrared studies of elliptical galaxies. II. A radio-selected sample. IMPEY C.D., WYNN-WILLIAMS C.G. and BECKLIN E.E.
1990ApJ...356..432G 1 35 141 A study of BL Lacertae-type objects with EXOSAT. I. Flux correlations, luminosity and spectral variability. GIOMMI P., BARR P., GARILLI B., et al.
1990ApJ...358..139L 4 5 High-resolution X-ray spectroscopy of four active galaxies : probing the intercloud medium. LUM K.S.K., CANIZARES C.R., MARKERT T.H., et al.
1990ApJ...358..159G 28 46 VLBI observations of a complete sample of radio galaxies. I. Snapshot data. GIOVANNINI G., FERETTI L. and COMORETTO G.
1990ApJ...360..396W 62 163 X-ray spectra of compact extragalactic radio sources. WORRALL D.M. and WILKES B.J.
1990MNRAS.243..640B 44 42 The optical and infrared emission of blazars. BALLARD K.R., MEAD A.R.G., BRAND P.W.J.L., et al.
1990AZh....67...33M 71 0 Observations of faint radio galaxies with the RATAN-600 radio telescope. MALUMYAN V.H.
1990A&ARv...2..125B 32 113 Continuum radiation from active galactic nuclei. BREGMAN J.N.
1990JRASC..84..199R 93 10 Optical polarization properties of compact radio sources. RUSK R.
1991A&A...241...35B 110 1 A determination of the local radio luminosity function of radiogalaxies at 408 MHz. BASSO L., GRUEFF G. and VIGOTTI M.
1991A&A...246L...6F 72 T                   1 2 14 Observations of the BL Lacertae objects
Mkn 501 and Mkn 421 with ROSAT.
1991A&A...249...65X 33 48 The beaming model and Hubble diagram of BL Lacertae objects. XIE G.Z., LIU F.K., LIU B.F., et al.
1991A&A...250...50B 8 17 0735+178: the cosmic conspiracy. BAATH L.B., ZHANG F.J. and CHU H.S.
1991A&AS...88..225S 1 11 54 Optical monitoring of quasars and BL Lacertae objects. II. SILLANPAA A., MIKKOLA S. and VALTAOJA L.
1991A&AS...90..161T 1 12 51 Simultaneous UBVRI photopolarimetric observations of blazars. TAKALO L.O.
1991AJ....101...71X 67 20 Observational distinction between two types of active galactic nuclei. XIE G.Z., LIU F.K., LIU B.F., et al.
1991AJ....101...78V 11 39 UBVRI photopolarimetry of BL Lac objects: the connection between frequency-dependent polarization and growing radio shocks. VALTAOJA L., VALTAOJA E., SHAKHOVSKOY N.M., et al.
1991AJ....101..362C 363 116 UGC galaxies stronger than 25 mJy at 4.85 GHz. CONDON J.J. and FRAYER D.T.
1991AJ....101.2266R 102 22 A radio optical reference frame. II. Additional radio and optical source positions in the northern hemisphere. RUSSELL J.L., JOHNSTON K.J., MA C., et al.
1991ApJ...366...16B 54 31 Comparison of VLBI radio-core and X-ray flux densities of extragalactic radio sources. BLOOM S.D. and MARSCHER A.P.
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