Six-Image CLASS Gravitational Lens

Minimum credit line: Image courtesy of NRAO/AUI and Rusin et al., ESA, STScI(for details, see Image Use Policy).

About this Image

This object was discovered during the third phase of the Cosmic Lens All-Sky Survey (CLASS), an international collaboration that searches for new cases of gravitational lensing among compact radio sources. This is a composite image showing the Hubble Space Telescope image of the gravitational lens system B1359+154, and six VLBA images of the lensed background radio source. The white objects are the multiple lensed images of the background galaxy, more than 11 billion light-years away. The orange objects are images of the three galaxies some 7 billion light-years away whose gravity is bending the light from the background galaxy to produce the multiple images. This is the first arcsecond-scale system in which a source is lensed into more than four detectable images.

Investigator(s):  D. Rusin, C. Kochanek, M. Norbury, E. Falco, C. Impey, J. Lehar, B. McLeod, H.-W. Rix, C. Keeton, J. Munoz, and C. Peng

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Technical Data

    Telescope VLBA 
    Date of Observation 2000-00-00 
    Type of Observation Continuum Observations 
    Band L 
    Wavelength 20 cm 
    Frequency 1.4 GHz 
    Center of Image RA: 14:01:35.60, Dec: 15:13:25.00 (J2000)  
    Field of View 0.0008 x 0.0008 degrees  
    Technical Caption VLBA images (15 x 15 milliarcsecond boxes) made from a 10-hour observation at 1.7 GHZ. HST image (2.9 x 2.9 arcsec) made from a 5000 second observation in the I band.  

  • Astronomical database entries for CLASS B1359 154
    • Query NED for images of CLASS B1359 154
    • Query SIMBAD for more CLASS B1359 154 data


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