Superradiance in stars
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Documents
- PhysRevD.91.124026
Final published version, 213 KB, PDF document
It has long been known that dissipation is a crucial ingredient in the superradiant amplification of wave packets off rotating objects. We show that, once appropriate dissipation mechanisms are included, stars are also prone to superradiance and superradiant instabilities. In particular, ultralight dark matter with small interaction cross section with the star material or self-annihilation can trigger a superradiant instability. On long time scales, the instability strips the star of most of its angular momentum. Whether or not new stationary configurations surrounded by scalar condensates exist remains to be seen.
Original language | English |
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Article number | 124026 |
Journal | Physical Review D |
Volume | 91 |
Issue number | 12 |
Number of pages | 5 |
ISSN | 1550-7998 |
DOIs | |
Publication status | Published - 9 Jun 2015 |
Externally published | Yes |
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Research areas
ID: 300072526