Do SGRs/AXPs and radio AXPs have the same nature?
Abstract
SGRs/AXPs are assumed to be a class of neutron stars (NS) powered by magnetic energy and not by rotation, as normal radio pulsars. However, the recent discovery of radio-pulsed emission in four of this class of sources, where the spin-down rotational energy lost is larger than the X-ray luminosity during the quiescent state - as in normal pulsars - opens the question of the nature of these radio AXPs in comparison to the others of this class. In this work, we show that the radio AXPs obey a linear log-log relation between and , very similar to the one of normal X-ray pulsars, a correlation not seen for the others SGRs/AXPs. This result suggests a different nature between the radio AXPs comparing to the others SGRs/AXPs.
Cite
@article{arxiv.1303.0863,
title = {Do SGRs/AXPs and radio AXPs have the same nature?},
author = {J. G. Coelho and M. Malheiro},
journal= {arXiv preprint arXiv:1303.0863},
year = {2013}
}
Comments
Version with small modifications in the abstract and in caption of Figure 1, 3 pages including 1 figure; to appear in the Proceedings of 13th Marcel Grossmann Meeting (MG13), Stockholm, Sweden, 1-7 July 2012; based on the talk given at the Parallel Session SO4 "White Dwarf Pulsars and Rotating White Dwarf Theory"