Radio/Optical overlay Radio Galaxy 3C433

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About this Image

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.

Investigator(s):  A.R.S.Black, S.A.Baum, J.P.Leahy, R.A.Perley, J.M.Riley & P.A.G.Scheuer. Optical/radio superposition by Alan Bridle

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Technical Data

    Telescope VLA 
    Date of Observation 1989-09-14 
    Type of Observation Continuum Observations 
    Band X 
    Wavelength 3.6 cm 
    Frequency 8.4 GHz 
    Center of Image RA: 21:23:44.75, Dec: 25:04:17.80 (J2000)  
    Field of View 0.0167 x 0.0167 degrees  
    Technical Caption 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.  

  • Astronomical database entries for 3C433
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    • Query SIMBAD for more 3C433 data


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