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High frequency radio observations of the nucleus of Cen A

  • Zulema Abraham (a1)

Extract

Cen A (NGC5128) is a giant radio galaxy that in several ways behaves like a weak active galactic nucleus. It presents three pairs of radio lobes and a compact core with a one sided jet (Jauncey et al. 1995). The compact core is highly variable in wavelengths ranging from the radio region to X and γ rays (Kinzer et al. 1995). In the radio domain, the emission from the core dominates at high frequencies and a considerable effort was made to study variability at 22 and 43 GHz for more than ten years (Botti & Abraham 1995).

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References

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Botti, L.C.L., Abraham, Z. (1993) Long-term radio observation of the nucleus of NGC5128 (Centaurus A), MNRAS , 264, 807812
Jauncey, D.L. et al. (1995) Sub-Parsec Scale Structure and Evolution of Centaurus A (NGC5128) Quasars and AGN: High Resolution Radio Imaging. National Academy of Sciences Pub., in press.
Kinzer, R.L. et al. (1995) OSSE observations of gamma-ray emission from Centaurus A, ApJ , 449, 105118

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