Exploring the intrabinary shock from the redback millisecond pulsar PSR J2129-0429
Abstract
We have investigated the intrabinary shock emission from the redback millisecond pulsar PSR J2129-0429 with XMM-Newton and Fermi. Orbital modulation in X-ray and UV can be clearly seen. Its X-ray modulation has a double-peak structure with a dip in between. The observed X-rays are non-thermal dominant which can be modeled by a power-law with a photon index of ~1.2. Intrabinary shock can be the origin of the observed X-rays. The UV light curve is resulted from the ellipsoidal modulation of the companion. Modeling the UV light curve prefers a large viewing angle. The heating effect of the UV light curve is found to be negligible which suggests the high energy radiation beam of PSR J2129-0429 does not direct toward its companion. On the other hand, no significant orbital modulation can be found in gamma-ray which suggests the majority of the gamma-rays come from the pulsar.
Cite
@article{arxiv.1502.03889,
title = {Exploring the intrabinary shock from the redback millisecond pulsar PSR J2129-0429},
author = {C. Y. Hui and C. P. Hu and S. M. Park and J. Takata and K. L. Li and P. H. T. Tam and L. C. C. Lin and A. K. H. Kong and K. S. Cheng and Chunglee Kim},
journal= {arXiv preprint arXiv:1502.03889},
year = {2015}
}
Comments
14 pages, 3 figures, 1 table, accepted for publication in ApJ Letter