Systematic surveys of the non thermal emission from white dwarfs with Suzaku and INTEGRAL
Dotani, Tadayasu; Ishida, Manabu; Hayashi, Takayuki; Makishima, Kazuo; Morigami, Kouichi; Terada, Yukikatsu; Naik, Sachindra; Bamba, Aya; Mukai, Koji; Harayama, Atsushi; Okada, Shunsaku; Nakamura, Ryoko
Japan, United States, India
Abstract
Continuous searches for other possible white dwarf (WD) pulsars like AE Aquarii[12] with Suzaku and INTEGRAL have been performed. After picking up WDs with known magnetic field strengths and spin periods from catalogs of CVs and isolated WDs, objects whose induced electric potentials exceed 1012 volts and dipole radiations over 1029 erg s-1 are selected; AM Her, EUVE J0317-85, PG1031+234, LHS1734, PG1015+014 etc. Their X-rays were studied with INTEGRAL archive data and/or Suzaku follow-up observations. A promising non-thermal emission from an object, AM Her in a very low state, has been found with Suzaku at the X-ray luminosity of 6.6×1029 erg s-1.