The North Middle Lobe of Centaurus A.

Autor: Neff, Susan G., Eilek, Jean A., Owen, Frazer N., Massaro, F., Cheung, C. C., Lopez, E., Siemiginowska, A.
Zdroj: Proceedings of the International Astronomical Union; Sep2014 Supplement, Vol. 10 Issue S313, p246-247, 2p
Abstrakt: We present new, deep VLA 327 MHz, GALEX Far-UV, and Hα images of the inner ~50 kpc of Centaurus A. We find the structure identified by Morganti et al. 1999 as a possible “large scale jet” is part of a knotty, linear feature within a broader region of diffuse radio emission. The linear feature is coincident with a narrow ribbon of Far-UV and Hα emission that extends 6-35 kpc from the galaxy core, as well with a similar ridge of soft X-ray emission. The Far-UV image also shows that a strong starburst is occurring in the central dusty disk, with a star-formation rate of ~ 2M⊙ yr−1. We suggest that the various peculiar phenomena seen to the NE of the galaxy can be explained by a wind from the starburst disk, enhanced by energy input from the AGN. [ABSTRACT FROM PUBLISHER]
Databáze: Complementary Index