{ "id": "1404.1532", "version": "v2", "published": "2014-04-06T00:24:58.000Z", "updated": "2014-05-30T23:25:49.000Z", "title": "High-energy pulsations and phase-resolved spectroscopy of PSR J1741-2054", "authors": [ "M. Marelli", "A. Belfiore", "P. Saz Parkinson", "P. Caraveo", "A. De Luca", "C. Sarazin", "D. Salvetti", "G. R. Sivakoff", "F. Camilo" ], "comment": "12 pages, 4 figures, accepted by the Astrophysical Journal", "journal": "Marelli et al. 2014, ApJ, 790, 51", "categories": [ "astro-ph.HE" ], "abstract": "We report the results of a deep XMM-Newton observation of the radio-faint $\\gamma$-ray pulsar J1741-2054 and its nebula together with the analysis of 5 years of Fermi LAT data. The X-ray spectrum of the pulsar is consistent with an absorbed power law plus a blackbody, originating at least partly from the neutron star cooling. The nebular emission is consistent with that of a synchrotron pulsar wind nebula, with hints of spatial spectral variation. We extended the available Fermi LAT ephemeris and folded the $\\gamma$-ray and X-ray data. We detected X-ray pulsations from the neutron star: both the thermal and non-thermal components are about 35-40% pulsed, with phase-aligned maxima. A sinusoid fits the thermal folded profile well. A 10-bin phase-resolved analysis shows softening of the non-thermal spectrum during the on-pulse phases. The radio, X-ray and $\\gamma$-ray light curves are single-peaked, not phase-aligned, with the X-ray peak trailing the $\\gamma$-ray peak by over half a rotation. Spectral considerations suggest that the most probable pulsar distance is in the 0.3-1.0 kpc range.", "revisions": [ { "version": "v2", "updated": "2014-05-30T23:25:49.000Z" } ], "analyses": { "keywords": [ "high-energy pulsations", "phase-resolved spectroscopy", "synchrotron pulsar wind nebula", "neutron star", "absorbed power law plus" ], "tags": [ "journal article" ], "publication": { "doi": "10.1088/0004-637X/790/1/51", "journal": "The Astrophysical Journal", "year": 2014, "month": "Jul", "volume": 790, "number": 1, "pages": 51 }, "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable", "inspire": 1288828, "adsabs": "2014ApJ...790...51M" } } }