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- astrophysics - high energy astrophysical phenomena23
- high energy astrophysical phenomena (astro-ph.he)23
- astronomy and astrophysics22
- astrophysics22
- space and planetary science22
- astrophysics::cosmology and extragalactic astrophysics21
- 01 natural sciences20
- 0103 physical sciences20
- 010303 astronomy & astrophysics20