NGC 4151 (18 cm)

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About this Image

18-CM IMAGE: The above image is a false-color representation of the radio image of the center of the Seyfert galaxy NGC 4151, made at a wavelength of 18 cm (1.6 GHz frequency), using the VLBA. North is up and East is to the left in this image. The southwestern (lower right) region of this image, elongated somewhat east of north, contains the 2.6-light-year radio jet seen at higher resolution in the 6-cm image. This jet curves by an angle of approximately 55 degrees into the region of more extended radio emission, which extends along a relatively straight path somewhat to the north of due east. This elongated emission, having a total length of approximately 8 light years beyond the jet seen at 6 cm, is very well aligned with the 800-light-year radio jet previously observed.

Investigator(s):  Alan Roy, James Ulvestad, Edward Colbert, and Andrew Wilson

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Technical Data

    Telescope VLBA 
    Date of Observation 1996-05-31 
    Type of Observation Continuum Observations 
    Band L 
    Wavelength 20 cm 
    Frequency 1.4 GHz 
    Center of Image RA: 12:10:32.73, Dec: 39:24:19.60 (J2000)  
    Field of View 0.0000 x 0.0000 degrees  
    Technical Caption  

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