Gravity seminar - Bennett Link Seminar
- Time:
- 12:00 - 13:00
- Date:
- 21Ìý±·´Ç±¹±ð³¾²ú±ð°ùÌý2013
- Venue:
- 54/5A
For more information regarding this seminar, please email Wynn Ho at wynn.ho@soton.ac.uk .
Event details
Constraining the origin of magnetar flares
Neutron stars with ultra-strong magnetic fields, magnetars, produce gamma-ray flares with energies of 10^39 to 10^46 erg. The energy source must be the strong magnetic field, but how the energy is liberated remains an open question. I will argue that most of the energy cannot originate in the stellar interior, but must be released in the stellar magnetosphere. Quasi-periodic oscillations observed in giant flares have been interpreted as magneto-elastic oscillations of the neutron star. I will present a challenge to this interpretation.
Speaker information
Bennett Link , Montana State, USA and University of Amsterdam, Netherlands