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Observations of Paschen alpha in the broad-line radio galaxy 3C 445 (1982)

Tokunaga, A. T. ; Rudy, R. J.

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Publication Date: 2011-08-18

Description: P alpha line flux measurements of the broad-line radio galaxy 3C 445 made at the NASA IR Telescope Facility in September 1981 are discussed. Broad-band measurements were obtained at H of 1.65 micron and K of 2.2 microns. A line flux of P alpha was found at 3.4 times 10 to the -13th ergs/sq cm sec. No discernable variation was detectable regarding measurements made in 1976. Substantial reddening was concluded to exist, although the H gamma lines observed were not due to reddening. The total H alpha luminosity was determined to be 4 x 10 to the 43rd ergs/sec. Steep Balmer line decrements are concluded to be due to interposed dust.

Keywords: ASTRONOMY

Type: Astrophysical Journal; vol. 256

Format: text

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