MG13 - Talk detail |
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Participant |
Turolla, Roberto | |||||||
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Institution |
Dept. of Physics and Astronomy, University of Padova - Via Marzolo 8 - Padova - - Italy | |||||||
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Session |
SF1 |
Accepted |
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Order |
Time |
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Talk |
Oral abstract |
Title |
Magnetars, do we still need them ? | |||||
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Abstract |
The Anomalous X-ray Pulsars and the Soft Gamma Repeaters (AXPs/SGRs) form a group of Galactic X-ray sources characterized by a number of common properties, which include the emission of short, powerful bursts, a variable persistent flux and large spin-down rates. SGRs and AXPs are currently believed to be powered by an ultra-magnetized neutron star, or magnetar. I'll review the main features of the magnetar model in connection with the observed properties of SGRs/AXPs, focusing on the persistent emission. In particular, the implications for the magnetar scenario of the discovery of outbursting (or "transient") sources and of "low-field" magnetars will be discussed. |
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