Navegação Ciências Exatas e da Terra por Autor "Koratkar, A.P."

Resultados 1-4 de 4

    • An atlas of H II regions in nearby Seyfert galaxies 

      Evans, I.N.; Koratkar, A.P.; Storchi-Bergmann, Thaisa; Kirkpatrick, H.; Heckman, Timothy M.; Wilson, Andrew S. (1996) [Artigo de periódico]
      Continuum-subtracted Hα images of 17 nearby Seyfert galaxies are presented. The images are calibrated astrometrically usmg the Hubble Space Telescope Guide Star Catalog reference frame. For each galaxy, an inventory of HII ...

    • Steps foward determination of the size and structure of the broad-line region in active galactic nuclei. V. Variability of the ultraviolet continuum and emission lines of NGC 3783 

      Reichert, G.A.; Rodriguez-Pascual, P.M.; Alloin, Danielle Marie; Clavel, J.; Crenshaw, Daniel Michael; Kriss, Gerard A.; Krolik, J.H.; Malkan, M.A.; Netzer, Hagai; Peterson, Bradley M.; Wamsteker, W.; Pastoriza, Miriani Griselda; Altamore, A.; Altieri, B.; Anderson, K.S.J.; Blackwell, J.H., Jr.; Boisson, Catherine; Brosch, N.; Carone, T.E.; Dietrich, Matthias; England, M.N.; Evans, I.N.; Filippenko, Alexei V.; Gaskell, C.M.; Good, M.; Gondhalekar, P.M.; Horne, Keith; Kazanas, D.; Kollatschny, W.; Koratkar, A.P.; Korista, Kirk T.; Macalpine, G.M.; Maoz, D.; Mazeh, Tsevi; Mccollum, B.; Miller, Hugh Richard; Oliveira, Carlos Roberto Mendes de; O'Brien, P.T.; Pelat, D.; Pérez Jiménez, Enrique; Perola, G.C.; Pogge, Richard William; Ptak, R.L.; Recondo-Gonzalez, M.C.; Rodríguez Espinosa, Jose Miguel; Rosenblat, E.I.; Asadun, A.C.; Santos-Lleo, M.; Shields, J.C.; Shrader, C.R.; Shull, John Michael; Simkin, S.M.; Sitko, M.L.; Snijders, M.A.J.; Sparke, L.S.; Stirpe, Giovanna M.; Stoner, R.E.; Storchi-Bergmann, Thaisa; Sun, W.-H.; Wang, T.; Welsh, W.F.; White, R.J.; Winge, Claudia; Zheng, W. (1994) [Artigo de periódico]
      We report on the results of intensive ultraviolet spectral monitoring of the Seyfert 1 galaxy NGC 3783. The nucleus of NGC 3783 was observed with the International Ultraviolet Explorer satellite on a regular basis for a ...

    • 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) [Artigo 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) [Artigo 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 ...