An extended extragalactic radio source behind the Milky Way

Details An extended extragalactic radio source behind the Milky Way An extended extragalactic radio source behind the Milky Way

Feb 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...143..478s&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 143, no. 2, Feb. 1985, p. 478-480. Research supported by the Alexander von Hum

Astronomy and Astrophysics

Astronomy

6

Extragalactic Radio Sources, Polarized Electromagnetic Radiation, Radio Astronomy, Radio Spectra, Galactic Bulge, Interstellar Extinction, Interstellar Gas, Linear Polarization, Milky Way Galaxy, Quasars, Radio Galaxies

Scientific paper

Observations at 2.7 and 4.8 GHz are presented of an unusual and so far undetected, bar-like structure in the galactic plane at l = 65°. The source extends over 0°.7 by 0°.15, is polarized and has a steep spectrum. It consists of two outer components and a flatter spectrum central bulge. At 10.7 GHz the authors discovered an 8 mJy source in the centre, lying symmetrically between the two outer components. VLA observations at 4.885 GHz showed that this is compact with flux density 3.4±0.5 mJy, indicating a flat or inverted spectrum. These characteristics suggest that it is an extragalactic radio source seen in projection through the plane of the Galaxy.

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