Listar por autor "Huchra, John P."

Mostrando ítems 1-4 de 4

    • Steps toward determination of the size and structure of the broad-line region in active galactic nuclei. IX. Ultraviolet observations of Fairall 9 

      Rodriguez-Pascual, P.M.; Alloin, Danielle Marie; Clavel, J.; Crenshaw, Daniel Michael; Horne, Keith; Kriss, Gerard A.; Krolik, J.H.; Malkan, M.A.; Netzer, Hagai; O'Brien, P.T.; Peterson, Bradley M.; Reichert, G.A.; Wansteker, W.; Alexander, T.; Barr, P.; Blandford, R.D.; Bregman, J.N.; Carone, T.E.; Clements, S.; Courvoisier, T.-J.; De Robertis, M.M.; Dietrich, Matthias; Dottori, Horacio Alberto; Edelson, Rick A.; Filippenko, Alexei V.; Gaskell, C.M.; Huchra, John P.; Hutchings, John B.; Kollatschny, W.; Koratkar, A.P.; Korista, Kirk T.; Laor, A.; Macalpine, G.M.; Martin, P.G.; Maoz, D.; Mccollum, B.; Morris, S.L.; Perola, G.C.; Pogge, Richard William; Ptak, R.L.; Recondo-Gonzalez, M.C.; Rodríguez Espinosa, Jose Miguel; Rokaki, E.L.; Santos-Lleo, M.; Sekiguchi, Kazuhiro; Shull, John Michael; Snijders, M.A.J.; Sparke, L.S.; Stirpe, Giovanna M.; Stoner, R.E.; Sun, W.-H.; Wagner, S.J.; Wanders, I.; Wilkes, B.J.; Winge, Claudia; Zheng, W. (1997) [Artículo de periódico]
      An 8 month monitoring campaign on the Seyfert 1 galaxy Fairall 9 has been conducted with the International Ultraviolet Explorer in an attempt to obtain reliable estimates of continuum-continuum and continuumÈemission-line ...

    • Steps toward determination of the size and structure of the broad-line region in active galactic nuclei. VIII. An intensive HST, IUE, and ground-based study of NGC 5548 

      Korista, Kirk T.; Alloin, Danielle Marie; Barr, P.; Clavel, J.; Cohen, R.D.; Crenshaw, Daniel Michael; Evans, I.N.; Horne, Keith; Koratkar, A.P.; Kriss, Gerard A.; Krolik, J.H.; Malkan, M.A.; Morris, S.L.; Netzer, Hagai; O'Brien, P.T.; Peterson, Bradley M.; Reichert, G.A.; Rodriguez-Pascual, P.M.; Wamsteker, W.; Anderson, K.S.J.; Axon, David J.; Benitez, E.; Berlind, P.; Bertram, R.; Blackwell, J.H., Jr.; Bochkarev, N.G.; Boisson, Catherine; Carini, M.; Carrillo, R.; Carone, T.E.; Cheng, F.Z.; Christensem, J.A.; Chuvaev, K.K.; Dietrich, Matthias; Dokter, J.J.; Doroshenko, V.; Hayan, D. Dultzin; England, M.N.; Espey, B.R.; Filippenko, Alexei V.; Gaskell, C.M.; Goad, M.R.; Ho, Luis C.; Huchra, John P.; Jiang, Xiaojun; Kaspi, Shai; Kollatschny, W.; Laor, A.; Luminet, J.P.; Macalpine, G.M.; Mackenty, J.W.; Malkov, Yu. F.; Maoz, D.; Martin, P.G.; Matheson, T.; Mccollum, B.; Merkulova, N.; Metik, L.; Mignoli, M.; Miller, Hugh Richard; Pastoriza, Miriani Griselda; Pelat, D.; Penfold, J.; Perez, Marth; Perola, G.C.; Persaud, J.L.; Peters, J.; Pitts, R.; Pogge, Richard William; Pronik, V.I.; Ptak, R.L.; Rawley, L.; Recondo-Gonzalez, M.C.; Rodríguez Espinosa, Jose Miguel; Romanishin, W.; Sadun, A.C.; Salamanca, I.; Santos-Lleo, M.; Sekiguchi, Kazuhiro; Sergeev, S.G.; Shapovalova, A.I.; Shields, J.C.; Sharder, C.; Shull, John Michael; Silbermann, N.A.; Sitko, M.L.; Skillman, D.R.; Smith, H.A.; Smith, S.M.; Snijders, M.A.J.; Sparke, L.S.; Stirpe, Giovanna M.; Stoner, R.E.; Sun, W.-H.; Thiele, U.; Tokarz, S.; Tsvetanov, Z.I.; Turnshek, D.A.; Veilleux, Sylvain; Wagner, R.M.; Wagner, S.J.; Wanders, I.; Wang, T.; Welsh, W.F.; Weymann, R.J.; White, R.J.; Wilkes, B.J.; Wills, B.J.; Winge, Claudia; Wu, H.; Zou, Z.L. (1995) [Artículo de periódico]
      We present the data and initial results from a combined HST/IUE/ground-based spectroscopic monitoring campaign on the Seyfert I galaxy NGC 5548 that was undertaken in order to address questions that require both higher ...

    • Steps toward determination of the size and structure of the broad-line region in active galactic nuclei. VII. Variability of the optical spectrum of NGC 5548 over 4 years 

      Peterson, Bradley M.; Berlind, P.; Bertram, R.; Bochkarev, N.G.; Bond, D.; Brotherton, Mike; Busler, J.R.; Chuvaev, K.K.; Cohen, R.D.; Dietrich, Matthias; Elvis, Martin; Filippenko, Alexei V.; Foltz, C.B.; Garnavich, P.M.; Ho, Luis C.; Horine, E.; Horne, Keith; Huchra, John P.; Kollatschny, W.; Korista, Kirk T.; Malkan, M.A.; Matheson, T.; Mignoli, M.; Morris, S.L.; Nazarova, L.; Penfold, J.; Peters, J.; Pogge, Richard William; Pronik, V.I.; Rush, B.; Sergeev, S.G.; Shapovalova, A.I.; Shields, J.C.; Stirpe, Giovanna M.; Tokarz, S.; Wagner, R.M.; Weymann, R.J.; White, R.J.; Wilkes, B.J.; Wills, Derek; Wills, Beverley J.; Winge, Claudia; Younger, P.F. (1994) [Artículo de periódico]
      We report on the results of a continuation of a large monitoring program of optical spectroscopy of the Seyfert 1 galaxy NGC 5548. The new observations presented here were obtained between 1990 December and 1992 October, ...

    • The supergalactic plane revisited with the optical redshift survey 

      Lahav, Ofer; Santiago, Basilio Xavier; Webster, A.M.; Strauss, Michael A.; David, M.; Dressler, A.; Huchra, John P. (2000) [Artículo de periódico]
      We re-examine the existence and extent of the planar structure in the local galaxy density field, the so-called supergalactic plane (SGP). This structure is studied here in three dimensions using both the new Optical ...