Radio/Optical Overlay Radio Galaxy 3C433

False-color image of the unusual double-lobed radio galaxy 3C433. Blue colors show the distribution of stars, made from an HST WFPC2 image (from Sigrid de Koff et al. 1996, ApJSS, 107, 621), and red colors show the radio radiation as imaged by the VLA. The host galaxy is a member of a close pair in a small group. There are bright hot spots and other structure in asymmetric lobes, and a well collimated, one-sided radio jet. This radio emission is from relativistic streams of high energy particles generated by the quasar. Astronomers believe that the jets are fueled by material accreting onto a super-massive black hole at the center of the galaxy hosting the quasar. The high energy particles are shot into extragalactic space at speeds approaching the speed of light, where they eventually balloon into massive radio lobes.

Radio galaxy is at a redshift of z=0.1016 (450/h Mpc, H = 100h km/s/Mpc). The radio image is from a VLA 8.5 GHz (3.6cm) observation at 0.75 arcsec resolution.

Legacy Astronomical Images

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

Legacy Astronomical Image

3C433

A.R.S.Black, S.A.Baum, J.P.Leahy, R.A.Perley, J.M.Riley, P.A.G.Scheuer

Very Large Array (VLA)

HST

1989-09-14

continuum

X

3.6 cm

8.4 GHz

RA 21:23:44.750, Dec: 25:4:17.800 (J2000)

0.016700 x 0.016700 degrees

Contact the archivist for a high resolution tif of this image.

Active Galactic Nuclei Series

Quasars Unit