Radio and X-ray image of G21.5-0.9

Image
Minimum credit line: Image courtesy of NRAO/AUI (for details, see Image Use Policy).

About this Image

A radio and­ X-ray composite image of the pulsar-powered supernova remnant, G21.5-0.9, includes data from the NRAO Very Large Array (blue) and the Chandra X-ray Observatory (red). The remnant is what remains of a supernova that exploded in our Galaxy about 1000 years ago. The core of the original star has collapsed to an incredibly dense neutron star or pulsar, which spins rapidly and emits an energetic wind of particles and magnetic field that energizes the filamentary nebula visible in the radio and in the X-ray. Although the pulsar is not seen directly, we can infer that the pulsar is located inside the bright X-ray region that is seen here as the central orange spot.

Investigator(s):  M. Bietenholz (Hartebeesthoek Radio Observatory and York University), N. Bartel (York University); H. Matheson and S. Safi-Harb (University of Manitoba); NASA/CXC

Alternate Resolutions Help

This image is available in the following downloadable versions:If you would like to obtain a higher resolution version of this image, please contact Pat Smiley.

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Technical Data

    Telescope VLA 
    Date of Observation 2006-09-09 
    Type of Observation Continuum Observations 
    Band C 
    Wavelength 6 cm 
    Frequency 5.0 GHz 
    Center of Image RA: 18:33:34.00, Dec: -10:34:8.00  
    Field of View 0.0433 x 0.0333 degrees  

  • Astronomical database entries for G215-09
    • Query SIMBAD for more G215-09 data

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