NGC 6212 - an elliptical galaxy with a highly active nucleus

Astronomy and Astrophysics – Astronomy

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Elliptical Galaxies, Galactic Nuclei, Radio Astronomy, X Ray Sources, Heao 3, Luminosity, Red Shift, Variability

Scientific paper

The identification of a strong variable X-ray source with the elliptical galaxy NGC 6212 is reported. Westerbork observations at 327, 609 and 1412 MHz show the presence of an unresolved (less than 12-arcsec) radio source with a nonthermal spectrum centered on the galaxy. The X-ray luminosity of about 10 to the 43rd erg/s, the variability, and presence of a radio component suggest an active nucleus in NGC 6212, possibly a new BL Lac or OVV. The object deserves the attention of optical spectroscopists in particular.

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