Talk detail

Participant	Malheiro, Manuel
Institution	Instituto Tecnológico de Aeronautica - Praça Marechal Eduardo Gomes, 50 - São José dos Campos - São Paulo - Brazil

Session	SO4	Accepted		Order	Time
Talk	Oral abstract	Title	Magnetic moments of SGRs and AXPs as white dwarf pulsars
Co-authors
Abstract	Some of the most interesting types of astrophysical objects that have been intensively studied in the recent years are the Anomalous X-ray Pulsars (AXPs) and Soft Gamma-ray Repeaters (SGRs) seen usually as neutron stars pulsars with super strong magnetic fields. However, in the last two years two SGRs with low magnetic fields have been detected. Moreover, three fast and very magnetic WD pulsars have also been observed in the last years. Based on these new pulsar discoveries, white dwarf pulsars have been proposed as an alternative explanation to the observational features of SGRs and AXPs. We discuss here the pulsar magnetic dipole moment m when a model based on a massive fast rotating highly magnetized white dwarf is considered. We show that the values for m obtained are in agreement with the observed range 10^34 emu <= m <= 10^36 emu and almost spin independent, characteristics of isolated and magnetic white dwarfs. This supports the understanding of SGRs and AXPs as belonging to a new class of very fast and magnetic white dwarfs, in accordance to the recent astronomical observations of white dwarfs pulsars.