Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.116..299o&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 116, no. 2, Nov. 1985, p. 299-311.
Astronomy and Astrophysics
Astrophysics
Astronomical Photometry, Elliptical Galaxies, Galactic Structure, Ubv Spectra, Continuous Spectra, Electrophotometry, Galactic Nuclei, H Alpha Line, Isophotes, Luminous Intensity, Stellar Evolution
Scientific paper
Surface photometry of the UV continuum galaxy NGC 838 has been carried out in the B, V system using photographic plates obtained with the 74arcsec Kottamia telescope, Egypt. Isophotes, luminosity profiles, integrated photographic magnitudes, effective diameters and other photometric parameters are derived. The nucleus of NGC 838 is quite blue (integrated colour (B-V) = 0.41 for r* < 0arcmin.1) compared to normal galaxies while the colour becomes redder from the nucleus outwards. The UV excess, Hα emission and radio continuum emission previously observed from this galaxy by other investigators may be attributed to a recent burst of star formation in the nucleus of the galaxy of duration slightly greater than 2×107yr.
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