Discovery of M87-like ejection in F-71

Details Discovery of M87-like ejection in F-71 Discovery of M87-like ejection in F-71

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984natur.309..600f&link_type=abstract

Nature (ISSN 0028-0836), vol. 309, July 14, 1984, p. 600-602. Sponsorship: Deutsche Forschungsgemeinschaft.

Astronomy and Astrophysics

Astronomy

2

Elliptical Galaxies, Galactic Radiation, Galactic Structure, Southern Sky, Astronomical Maps, Charge Coupled Devices, Ejecta, Energy Spectra, Galactic Nuclei

Scientific paper

Recent charge-coupled device images of the southern object F-71 are presented which show that this elliptical galaxy exhibits a brilliant knot about 14 arcsec away from the nucleus and is physically connected to it. Optically, this knot resembles in many respects the bright knots A and B in the M87 jet: its spectrum is featureless and very blue with a slope equal to that of the M87 knots. Its relative luminosity with respect to, and its separation from, the nucleus are both greater than in the M87 galaxy-jet system. It is suggested that the most likely interpretation of the F-71 knot is that it is ejected from the parent galaxy in the same way as the knots in the M87 jet. Further observations of F-71 may provide important clues to ejection activity from galactic nuclei.

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