Abstract
Recent x-ray observations have discovered that groups and clusters of galaxies contain many more baryons in intergalactic gas than in stars. If high-energy cosmic rays are present there with an average intensity comparable to that observed in our Galaxy, they could produce the extragalactic diffuse gamma radiation.
| Original language | English |
|---|---|
| Pages (from-to) | 3052-3055 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 75 |
| Issue number | 17 |
| DOIs | |
| State | Published - 1995 |
| Externally published | Yes |
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