A Low-Energy Jet Emanating from the Galactic Nucleus?
Abstract
A narrow ridge of low-frequency radio emission is found to lie along the rotation axis of the Galaxy and to extend 30 pc from the nucleus toward negative latitudes. No positive latitude counterpart is evident. This radio feature is observed at 160 MHz using the Culgoora Circular Array, and the constraints on its spectral index indicate that it is nonthermal. It is argued that it results from the continuous, or frequent, ejection of mildly relativistic particles from the Galactic nucleus. It is reminiscent of radio structures seen at higher frequencies in the nuclei of a number of spiral galaxies having Seyfert-like properties.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- January 1986
- DOI:
- 10.1086/184600
- Bibcode:
- 1986ApJ...300L..47Y
- Keywords:
-
- Galactic Nuclei;
- Milky Way Galaxy;
- Radio Jets (Astronomy);
- Astronomical Maps;
- Relativistic Particles;
- Synchrotron Radiation;
- Astronomy;
- GALAXIES: JETS;
- GALAXIES: NUCLEI