MG13 - Talk detail |
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Participant |
Harayama, Atsushi | |||||||
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Institution |
Saitama University - 255, Simo-Ookubo - Saitama City - Sakuraku - Japan | |||||||
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Session |
SO4 |
Accepted |
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Talk |
Oral abstract |
Title |
Search for non-thermal emission from isolated magnetized white dwarfs | |||||
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Abstract |
In order to search for possible non-thermal emission like AE Aquarii, we picked up magnetized isolated white dwarfs (WDs) in addition to binaries including magnetized cataclysmic variables. Recently, many magnetized WDs are found by Sloan Digital Sky Survey project reaching 10000 objects including WDs showing a magnetic field strength of B ~ 10^9 G. 21 objects were selected with known magnetic field strength and spin periods in terms of magnetic dipole momentum. The most promising object is EUVE J0317-855, which locates above death line of pulsars and has magnetic dipole radiation Erad ~ 1.1 x 10^29 erg/s larger than that of AE Aquarii. Then, we researched for non-thermal emission from isolated magnetized WDs with INTEGRAL, MAXI and Suzaku. As a result, no significant emissions were detected from isolated magnetized WDs with these instruments sensitivities. We report these results of research and further discussion. |
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