The ultraviolet spectrum of the active elliptical galaxy NGC 1052

Details The ultraviolet spectrum of the active elliptical galaxy NGC 1052 The ultraviolet spectrum of the active elliptical galaxy NGC 1052

Oct 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981mnras.197..235f&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 197, Oct. 1981, p. 235-240.

Astronomy and Astrophysics

Astronomy

27

Active Galaxies, Elliptical Galaxies, Spectral Energy Distribution, Ultraviolet Astronomy, Ultraviolet Spectra, Astronomical Photometry, Balmer Series, Emission Spectra, Iue, Red Shift

Scientific paper

Low resolution IUE observations of NGC 1052 in both the long and the short wavelength regions are reported along with optical multi-aperture photometry. It is found that the ultraviolet energy distribution of NGC 1052 is similar to that of other normal galaxies observed with IUE, having a large excess at short wavelengths above the extrapolation of the late-type star component which dominates the optical continuum. This implies important modifications of the previously accepted U- and B-band K-corrections for radio and normal galaxies at redshifts around 0.4 and 0.6, respectively. These observations support the hypothesis that the ionization observed near the nucleus of NGC 1052 is the result of shock rather than photoionization process.

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