Broad-band high-energy emissions of the redback millisecond pulsar PSR J2129–0429. Issue 3 (23rd June 2018)

• Record Type: Journal Article
• Authors: Kong, Albert K H; Takata, Jumpei; Hui, C Y; Zhao, J; Li, K L; Tam, P H T
• Is Part Of: Monthly notices of the Royal Astronomical Society. Volume 478:Issue 3(2018)
• Page Start: 3987
• Page End: 3993
• Publication Date: 2018-06-23
• Subjects: binaries: close -- pulsars: individual (PSR J2129–0429) -- X-rays: binaries; Astronomy -- Periodicals; Periodicals; 520.5
• DOI: 10.1093/mnras/sty1459
• Languages: English
• ISSNs: 0035-8711

Abstract

ABSTRACT: We present the first results from a joint XMM-Newton and NuSTAR observation of the gamma-ray emitting millisecond pulsar compact binary PSR J2129–0429. X-ray emission up to about 40 keV is detected and the joint spectrum can be modelled with a power-law plus a neutron star atmosphere model. At a distance of 1.4 kpc, the 0.3–79 keV luminosity is 3.56 × 10 32 erg s −1 . We also detected a 0.64-d binary orbital period with a double-peaked structure across the wavebands. By combining the updated Fermi GeV data, we modelled the broad-band spectral energy distribution as well as the X-ray modulation with an intrabinary model involving shock interaction between pulsar wind and outflow from the companion star. Lastly, we report a high-resolution X-ray image provided by Chandra to rule out the proposed pulsar wind nebula associated with PSR J2129–0429.