What Is the Observed Distribution of the Shorter-Living Gamma-Ray Bursters

question 344

Multiple Choice

What is the observed distribution of the shorter-living gamma-ray bursters in the sky?

• A) They are concentrated primarily along the plane of the Milky Way, indicating an origin in the Galaxy.
• B) They are uniform over the entire sky, indicating an origin at "cosmological" distances.
• C) They are clumpy but not coinciding with any known galaxy clusters, indicating an origin in a new kind of astronomical object.
• D) They are clumpy, approximately coinciding with large clusters of galaxies such as the Coma cluster.

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