Magnetar SGR 1900+14

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About this Image

Astronomers using the VLA have found evidence for the most powerful magnetic field ever seen in the universe by observing an "afterglow" of subatomic particles ejected from a magnetar -- a neutron star with a magnetic field billions of times stronger than anything that can be created on Earth. Magnetars were proposed in 1992 as a theoretical explanation for objects that repeatedly emit bursts of gamma-rays called "soft gamma-ray repeaters," or SGRs. This emission comes from the interaction of subatomic particles with the magnetar's powerful magnetic field. These VLA images show the SGR called 1900+14 (also known as GRB 980829), with its short-lived radio emission turned off, left, and on, right. The circles indicate the area from within which the X-ray emission of SGR 1900+14 comes.

Investigator(s):  Dale Frail, Shri Kulkarni, and Josh Bloom

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Technical Data

    Telescope VLA 
    Date of Observation 1998-09-03 
    Type of Observation Continuum Observations 
    Center of Image RA: 19:07:14.10, Dec: 09:19:19.00 (J2000)  
    Field of View 0.0069 x 0.0069 degrees  
    Technical Caption  

  • Astronomical database entries for GRB 980829
    • Query SIMBAD for more GRB 980829 data


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