Quasi-Periodic Oscillations in magnetars: linking variability and emission
| Authors | |
|---|---|
| Publication date | 20-03-2013 |
| Journal | Proceedings of the International Astronomical Union |
| Event | IAUS 291: Neutron stars and pulsars: Challenges and opportunities after 80 Years |
| Volume | Issue number | 8 | S291 |
| Pages (from-to) | 155-158 |
| Organisations |
|
| Abstract | I present recent results studying flare emission in magnetars. Strong quasi-periodic oscillations observed in the tail of giant magnetar flares are frequently interpreted as evidence for global seismic oscillations. I demonstrate that such a global oscillation is not directly observable in the lightcurve. New work suggests the amplitude for the strongest QPO stays nearly constant in the rotation phases where it is observed, which I argue suggests it is produced by an additional emission process from the star. |
| Document type | Article |
| Note |
Proceedings title: Neutron stars and pulsars : challenges and opportunities after 80 years : proceedings of the 291st Symposium of the International Astronomical Union, held in Beijing, China, 20-24 August 2012 Publisher: Cambridge University Pres Place of publication: Cambridge ISBN: 9781107033801 Editors: J. van Leeuwen |
| Language | English |
| Published at | https://doi.org/10.1017/S1743921312023460 |
| Permalink to this page | |