UV observations of the new BL Lac object 0716+71

Details UV observations of the new BL Lac object 0716+71 UV observations of the new BL Lac object 0716+71

Jul 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a...100....1f&link_type=abstract

Astronomy and Astrophysics, vol. 100, no. 1, July 1981, p. 1, 2. Deutsche Forschungsgemeinschaft Contract No. Fr-325/8-12.

Astronomy and Astrophysics

Astronomy

4

Bl Lacertae Objects, Iue, Line Spectra, Radio Sources (Astronomy), Ultraviolet Astronomy, Data Reduction, Signal To Noise Ratios, Spatial Resolution

Scientific paper

UV observations acquired by the IUE satellite of the BL Lac object 0716+71 are presented. Data were obtained in both the long- and short-wavelength ranges (2400-3000 and 1250-1900 A) and reduced using the spatially resolved line by line spectrum and the geometrically and photometrically corrected image in view of the very low signal-to-noise ratio. Integrated fluxes of 6.4 + or - 0.5 and 2.9 + or - 0.4 x 10 to the -13th erg/sec per sq cm are measured for the 1300-1900 and 2400-3000A ranges, respectively, using the corrected image, and 8.6 + or - 0.8 and 3.7 + or - 0.5 x 10 to the -13th erg/sec per sq cm using the line by line spectrum. Data are consistent with an overall power law spectrum with an index of -1 from the mm to the X-ray region and a pronounced excess in the near IR and optical regions.

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