Montana State University

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Physics colloquium series

Friday, April 12, 2013 from 4:10 pm - 5:00 pm
Engineering and Physical Sciences Building, Room 108

Dr. Teruaki Enoto from Goddard Space Flight Center will present "X-ray View of Magnetars, the strongest magnet in the universe?"

Soft gamma repeaters (SGRs) and Anomalous X-ray Pulsars (AXPs) are strange X-ray pulsars showing slow rotations, bright soft X-rays, and recurrent burst activities.  Based on accumulating observational evidence, these pulsars are now thought to be magnetically powered neutron stars, or ``magnetars" with an extremely strong magnetic field of 1e 10-11 T. Such a field is 2-3 orders of magnitudes higher than those of normal neutron stars, and well above the quantum critical field, 4.4e 9 T. Although such a strong field is considered to induce characteristic burst activities and particular X-ray spectra, little is known about how the magnetic energy is dissipated and converted into the radiation. In order to provide a unified characterization of this class, we performed a comprehensive study of broad-band X-ray spectra, and revealed the spectral evolution correlated with their characteristic age and their magnetic field strength. I will also introduce recent progress of X-ray observation of these mysterious X-ray sources and the future missions.

The cost of this event is: free

For more information go to:
http://www.physics.montana.edu/news/abstracts13/Enoto.pdf

For questions regarding this event, please contact:

Sarah Barutha
406-994-6186
sbarutha@physics.montana.edu

Sponsored by:
Department of Physics

Listed as: Undergraduate Graduate Faculty Community Students Lectures and Speakers Academics Audience Presentations


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