Sökning: (WFRF:(Koratkar A.)) pers:(Martin P. G.) > (1991) > Steps toward determ...
Fältnamn | Indikatorer | Metadata |
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000 | 04666naa a2201141 4500 | |
001 | oai:DiVA.org:uu-197176 | |
003 | SwePub | |
008 | 130318s1991 | |||||||||||000 ||eng| | |
024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-1971762 URI |
024 | 7 | a https://doi.org/10.1086/1695402 DOI |
040 | a (SwePub)uu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a ref2 swepub-contenttype |
072 | 7 | a art2 swepub-publicationtype |
100 | 1 | a Clavel, J.4 aut |
245 | 1 0 | a Steps toward determination of the size and structure of the broad-line region in active galactic nuclei. I. An 8 month campaign of monitoring NGC 5548 with IUE |
264 | 1 | b American Astronomical Society,c 1991 |
338 | a print2 rdacarrier | |
520 | a The authors present emission-line and ultraviolet continuum observations of a type I Seyfert galaxy in which the time resolution is adequate for describing the character of variability. Using the IUE satellite, the nucleus of NGC 5548 was observed every 4 days for a period of 8 months. Its mean properties-continuum shape, line ratios-are not unusual for type I Seyfert galaxies, but it was found to be strongly variable. The ultraviolet continuum flux and broad emission line fluxes varied significantly, going through three large maxima and three deep minima. The great majority of all variations were well resolved in time. The data lend qualitative support to the view that photoionization by the nuclear continuum is responsible for driving the emission lines | |
650 | 7 | a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng |
653 | a Experimental/ astronomical spectra | |
653 | a galactic nuclei | |
653 | a Seyfert galaxies | |
653 | a ultraviolet astronomical observations/ UV | |
653 | a spectra | |
653 | a AD 1988 12 14 to 1989 08 07 | |
653 | a broad-line region | |
653 | a active galactic nuclei | |
653 | a NGC 5548 | |
653 | a IUE | |
653 | a emission-line | |
653 | a continuum | |
653 | a type I Seyfert galaxy | |
653 | a fluxes | |
653 | a photoionization | |
653 | a 117 to 330 nm/ A9850R Active and peculiar galaxies A9580M Space ultraviolet astronomical observations A9850G Radiation and spectra of galaxies/ wavelength 1.17E-07 to 3.3E-07 m | |
700 | 1 | a Reichert, G. A.4 aut |
700 | 1 | a Alloin, D.4 aut |
700 | 1 | a Crenshaw, D. M.4 aut |
700 | 1 | a Kriss, G.4 aut |
700 | 1 | a Krolik, J. H.4 aut |
700 | 1 | a Malkan, M. A.4 aut |
700 | 1 | a Netzer, H.4 aut |
700 | 1 | a Peterson, B. M.4 aut |
700 | 1 | a Wamsteker, W.4 aut |
700 | 1 | a Altamore, A.4 aut |
700 | 1 | a Baribaud, T.4 aut |
700 | 1 | a Barr, P.4 aut |
700 | 1 | a Beck, S.4 aut |
700 | 1 | a Binette, L.4 aut |
700 | 1 | a Bromage, G. E.4 aut |
700 | 1 | a Brosch, N.4 aut |
700 | 1 | a Diaz, A. I.4 aut |
700 | 1 | a Filippenko, A. V.4 aut |
700 | 1 | a Fricke, K.4 aut |
700 | 1 | a Gaskell, C. M.4 aut |
700 | 1 | a Giommi, P.4 aut |
700 | 1 | a Glass, I. S.4 aut |
700 | 1 | a Gondhalekar, P.4 aut |
700 | 1 | a Hackney, R. L.4 aut |
700 | 1 | a Halpern, J. P.4 aut |
700 | 1 | a Hutter, D. J.4 aut |
700 | 1 | a Jorsater, S.4 aut |
700 | 1 | a Kinney, A. L.4 aut |
700 | 1 | a Kollatschny, W.4 aut |
700 | 1 | a Koratkar, A.4 aut |
700 | 1 | a Korista, K. T.4 aut |
700 | 1 | a Laor, A.4 aut |
700 | 1 | a Lasota, J. P.4 aut |
700 | 1 | a Leibowitz, E.4 aut |
700 | 1 | a Maoz, D.4 aut |
700 | 1 | a Martin, P. G.4 aut |
700 | 1 | a Mazeh, T.4 aut |
700 | 1 | a Meurs, E. J. A.4 aut |
700 | 1 | a Nair, A. D.4 aut |
700 | 1 | a O'Brien, P.4 aut |
700 | 1 | a Pelat, D.4 aut |
700 | 1 | a Perez, E.4 aut |
700 | 1 | a Perola, G. C.4 aut |
700 | 1 | a Ptak, R. L.4 aut |
700 | 1 | a Rodriguez-Pascual, P.4 aut |
700 | 1 | a Rosenblatt, E. I.4 aut |
700 | 1 | a Sadun, A. C.4 aut |
700 | 1 | a Santos-Lleo, M.4 aut |
700 | 1 | a Shaw, R. A.4 aut |
700 | 1 | a Smith, P. S.4 aut |
700 | 1 | a Stirpe, G. M.4 aut |
700 | 1 | a Stoner, R.4 aut |
700 | 1 | a Sun, W. H.4 aut |
700 | 1 | a Ulrich, M. -H4 aut |
700 | 1 | a van Groningen, E.4 aut |
700 | 1 | a Zheng, W.4 aut |
773 | 0 | t Astrophysical Journald : American Astronomical Societyg 366:1, s. 64-8181q 366:1<64-8181x 0004-637Xx 1538-4357 |
856 | 4 | u https://repositorio.uam.es/bitstream/10486/13450/1/63303_63303.pdf |
856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-197176 |
856 | 4 8 | u https://doi.org/10.1086/169540 |
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