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http://hdl.handle.net/20.500.12386/26064
Titolo: | VizieR Online Data Catalog: NGC 5548 43 year-long monitoring in Hβ (Bon+, 2016) | Autori: | Bon, E. Zucker, S. Netzer, H. MARZIANI, Paola Bon, N. Jovanovic, P. Shapovalova, A. I. Komossa, S. Gaskell, C. M. Popovic, L. C. Britzen, S. Chavushyan, V. H. Burenkov, A. N. Sergeev, S. La Mura, G. Valdes, J. R. Stalevski, M. |
Data pubblicazione: | 2016 | Rivista: | VizieR Online Data Catalog | Da pagina:: | J/ApJS/225/29 | Abstract: | We analyzed 1600 spectra of NGC 5548 in the Hβ spectral interval, covering 43 years. We used: (a) archival spectra obtained by K.K. Chuvaev from 1972-1988 (Sergeev+ 2007ApJ...668..708S) prior to the International AGN Watch (IAW) campaigns. These early spectra were recorded on photographic plates acquired with an image tube at the 2.6m Shajn Telescope of the Crimean Astrophysical Observatory. (b) The 13 year study (from 1988 to 2002) of the IAW program (Peterson+ 2002ApJ...581..197P), which provided 1530 optical continuum measurements and 1248 Hβ measurements. (c) A spectral monitoring program with the 6 and 1m telescopes of the Special Astrophysical Observatory (SAO) in Russia from 1996 to 2002, and the 2.1m telescope of Guillermo Haro Observatory (GHO) in Cananea, Mexico, from 1996 to 2003 (S04; Shapovalova+ 2004, J/A+A/422/925). (d) More recent, unpublished observations of the same program covering 2003-2013 observed at SAO (see Table 1), and a continuation of the monitoring campaign presented in S04. (e) Spectra from the new IAW campaign obtained at Asiago observatory in 2012, 2013, and 2015. (f) New unpublished observations from 2013 from the Asiago observatory (also given in Table 1). See section 2 for further details. <P />(2 data files). | URI: | http://hdl.handle.net/20.500.12386/26064 | URL: | http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/ApJS/225/29 | Bibcode ADS: | 2016yCat..22250029B | Fulltext: | open |
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