Radio/Optical overlay Radio Galaxy 3C66B

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About this Image

This image shows the optical and radio morphology of the double-lobed radio galaxy 3C66B. In this radio/optical overlay, blue colors show the distribution of stars, made from an image from the Digitized Sky Survey, and red colors show the radio radiation as imaged by the VLA, measured at a wavelength of 20cm. 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):  M.J.Hardcastle, P.Alexander, G.G.Pooley & J.Riley. Optical/radio superposition by Alan Bridle

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Technical Data

    Telescope VLA 
    Date of Observation 1991-08-19 
    Type of Observation Continuum Observations 
    Band L 
    Wavelength 20 cm 
    Frequency 1.4 GHz 
    Center of Image RA: 02:23:11.78, Dec: 42:59:30.40 (J2000)  
    Field of View 0.1333 x 0.0833 degrees  
    Technical Caption FR I (plumed) radio galaxy at z=0.0215 (65/h Mpc, H = 100h km/s/Mpc). Jets and plumes extend 140/h kpc from galaxy. VLA 1.45 GHz (20cm) image at 12.5 arcsec resolution.  

  • Astronomical database entries for 3C66
    • Query NED for images of 3C66
    • Query SIMBAD for more 3C66 data


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