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- W190776103 abstract "Akn 564 (α 1950 = 22 h 40 m 18.3 s , δ 1950 = 29°27′47″) is a Sy1.5G SBb type galaxy. According to Zwicky (1966) it has a photographic magnitude m p = 14.4 and a redshift of 0.025. The spectra of the galaxy were obtained at the 2.6-m telescope of the Crimean Astrophysical Observatory with a spectrograph having a dispersion of 100 A mm −1 . They were processed with the help of SPEC and LONG packages integrated in MIDAS. As a result of the spectrophotometry we obtain the fluxes at λλ 4363, 4959, 5007 A: I(4363), I(4959), I(5007). The spectrum of the galaxy in λλ 4000–7000 is shown in Figure 1. We use the relation of the fluxes of those narrow forbidden emission lines: sensitive at a greater extent to the electron temperature T e than to the electron density n e . The value of R = 74.3 we got, having a typical value of n e = 5×10 5 cm −3 for the NLR (Narrow Line Region), leads to the estimation of a typical temperature of T e = 10 4 K." @default.
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- W190776103 date "1999-01-01" @default.
- W190776103 modified "2023-09-25" @default.
- W190776103 title "Spectrophotometry of Selected AGN Seyfert Galaxy AKN 564" @default.
- W190776103 cites W2104909487 @default.
- W190776103 doi "https://doi.org/10.1017/s0074180900161807" @default.
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