Sagittarius A Filamentary Structure

Filamentary structure near the Galactic Center. The radio continuum observations of Sagittarius A (Sgr A) plus the continuum arc in the direction of Galactic Center at 20 cm. The most interesting result from our observations is the recognition of a system of narrow filamentary structures, which make up the continuum arc, having typical widths of 20 arc seconds (~ 1 pc). These radio filaments are perpendicular to the galactic plane, parallel to each other, regular, unbroken and homogeneous in their appearance. The presence of a halo of 8 arcmin diameter (24 pcs) surrounding the Sgr A East shell can also be seen. This halo consists of a number of large scale protrusions directed perpendicular to the galactic plane.

Observing runs - 1982 September, 1983 May, and 1984 March at the VLA, in B-, B/C-, and C/D-configurations using 27 antennas.

Legacy Astronomical Images

NRAO/AUI/NSF does not hold full copyright for this image. Contact the archivist for details.

Legacy Astronomical Image

Sgr A

F. Yusef-Zadeh, M.R. Morris, D.R. Chance

Very Large Array (VLA)

1984-03-00

continuum

L

20 cm

1.4 GHz

RA 17:43:15.000, Dec: -28:52:0.000 (B1950)

0.416700 x 0.416700 degrees

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Galactic Sources Series

Galactic Center Unit