Unusual Pulsed X-ray Emission from the Young, High Magnetic Field Pulsar PSR J1119-6127

Abstract

We present XMM-Newton observations of the radio pulsar PSR J1119-6127, which has an inferred age of 1,700 yr and surface dipole magnetic field strength of 4.1x10^13 G. We report the first detection of pulsed X-ray emission from PSR J1119-6127. In the 0.5--2.0 keV range, the pulse profile shows a narrow peak with a very high pulsed fraction of (74 +/- 14)%. In the 2.0--10.0 keV range, the upper limit for the pulsed fraction is 28% (99% confidence). The pulsed emission is well described by a thermal blackbody model with a temperature of T^{\infty} = 2.4^{+0.3}_{-0.2}x10^6 K and emitting radius of 3.4^{+1.8}_{-0.3} km (at a distance of 8.4 kpc). Atmospheric models result in problematic estimates for the distance/emitting area. PSR J1119-6127 is now the radio pulsar with smallest characteristic age from which thermal X-ray emission has been detected. The combined temporal and spectral characteristics of this emission are unlike those of other radio pulsars detected at X-ray energies and challenge current models of thermal emission from neutron stars.

arXiv comment7 pages and 2 figures. Accepted by ApJ

References in corpus (28)

• Strange Quark Matter and Compact Stars
• Fourier Techniques for Very Long Astrophysical Time Series Analysis
• Nuclear Matter and its Role in Supernovae, Neutron Stars and Compact Object Binary Mergers
• Discovery of Two High-Magnetic-Field Radio Pulsars
• The X-ray Spectrum of the Vela Pulsar Resolved with Chandra
• Changes in the X-ray Emission from the Magnetar Candidate 1E 2259+586 during its 2002 Outburst
• Pulsar Polar Cap Heating and Surface Thermal X-Ray Emission I. Curvature Radiation Pair Fronts
• New Constraints on the Structure and Evolution of the Pulsar Wind Nebula 3C 58
• The Compact Central Object in Cas A: A Neutron Star with Hot Polar Caps or a Black Hole?
• X-ray Spectra of Young Pulsars and Their Wind Nebulae: Dependence on Spin-down Energy
• Thermal Evolution and Light Curves of Young Bare Strange Stars
• Chandra X-ray Imaging Spectroscopy of the Young Supernova Remnant Kesteven 75
• Chandra Phase-Resolved Spectroscopy of the Crab Pulsar
• Chandra X-ray Detection of the High-Magnetic-Field Radio Pulsar PSR J1718-3718
• A radio supernova remnant associated with the young pulsar J1119-6127
• Neutron star cooling: Theoretical aspects and observational constraints
• Thermal emission from low-field neutron stars
• Chandra Detection of the X-ray counterpart of the High-magnetic field Radio Pulsar J1119-6127 in the Supernova Remnant G292.2-0.5
• Photon Emission from Dense Quark Matter
• Constraints on Thermal Emission Models of Anomalous X-ray Pulsars
• Photon Propagation Around Compact Objects and the Inferred Properties of Thermally Emitting Neutron Stars
• XMM-Newton spectral and timing observations of the millisecond pulsar PSR J0218+4232
• X-ray Observations of the New Pulsar--Supernova Remnant System PSR J1119-6127 and SNR G292.2-0.5
• High-energy emission from pulsars in polar-cap models with CR-induced cascades
• BeppoSAX observations of the young pulsar in the Kes 75 Supernova Remnant
• General Relativistic Constraints on Emission Models of Anomalous X-ray Pulsars
• Hydrogen Burning on Magnetar Surfaces
• Timing Properties of Magnetars

Cited by in corpus (46)

• Magnetar-like Emission from the Young Pulsar in Kes 75
• Grand Unification in Neutron Stars
• Neutrino Emission from Cooper Pairs and Minimal Cooling of Neutron Stars
• The glitch-induced identity changes of PSR J1119-6127
• Profile morphology and polarization of young pulsars
• The impact of magnetic field on the thermal evolution of neutron stars
• The soft gamma-ray pulsar population: an high-energy overview
• Evidence for Heating of Neutron Stars by Magnetic Field Decay
• Discovery of Pulsations and a Possible Spectral Feature in the X-ray Emission from Rotating Radio Transient J1819-1458
• Constraining the Spin-down of the Nearby Isolated Neutron Star RX J2143.0+0654
• Constraining the Spin-down of the Nearby Isolated Neutron Star RX J0806.4-4123, and Implications for the Population of Nearby Neutron Stars
• Discovery of the X-ray Counterpart to the Rotating Radio Transient J1819--1458
• Timing behavior of the Magnetically Active Rotation-Powered Pulsar in the Supernova Remnant Kestevan 75
• X-ray and Radio Timing of the Pulsar in 3C 58
• The unusual glitch recoveries of the high magnetic field pulsar J1119$-$6127
• Using Chandra to Unveil the High-Energy Properties of the High-Magnetic Field Radio Pulsar J1119-6127
• Modeling the Surface X-ray Emission and Viewing Geometry of PSR J0821-4300 in Puppis A
• Chandra Observations of the High-Magnetic-Field Radio Pulsar J1718-3718
• Deep X-ray Observations of the Young High-Magnetic-Field Radio Pulsar J1119-6127 and Supernova Remnant G292.2-0.5
• First X-ray observations of the young pulsar J1357-6429
• X-ray Observations of High-B Radio Pulsars
• The Young Pulsar J1357-6429 and Its Pulsar Wind Nebula
• Chandra and XMM-Newton studies of the supernova remnant G292.2-0.5 associated with the pulsar J1119-6127
• Post-Outburst Radio Observations of the High Magnetic Field Pulsar PSR J1119-6127
• No detectable radio emission from the magnetar-like pulsar in Kes 75
• Deep Chandra observations of TeV binaries II: LS 5039
• X-ray emission from isolated neutron stars
• Observations of Energetic High Magnetic Field Pulsars with the Fermi Large Area Telescope
• VLT/NACO observations of the High-Magnetic field radio pulsar PSR J1119-6127
• INTEGRAL detection of the pulsar wind nebula in PSR J1846-0258
• PSR J1119-6127 and its pulsar wind nebula following the magnetar-like bursts
• The X-ray Counterpart of the High-B Pulsar PSR J0726-2612
• The 2016 outburst of PSR J1119-6127: cooling & a spin-down dominated glitch
• Joule heating in high magnetic field pulsars
• XMM-Newton X-ray Detection of the High Magnetic Field Radio Pulsar PSR B1916+14
• The very soft X-ray spectrum of the Double Pulsar System J0737-3039
• Observations of Radio Magnetars with the Deep Space Network
• Classification of pulsars with Dirichlet process Gaussian mixture model
• X-ray spectral analysis of the neutron star in SNR 1E 0102.2-7219
• Chandra Smells a RRAT: X-ray Detection of a Rotating Radio Transient
• Quark-nova remnants III:Application to RRATs
• Astrophysics in 2005
• PSR J1119-6127 and the X-ray Emission from High Magnetic Field Radio Pulsars
• Investigation of the High-Energy Emission from the Magnetar-like Pulsar PSR J1119-6127 after the 2016 Outburst
• Back to quiescence: post-outburst evolution of the pulsar J1119-6127 and its wind nebula
• A month of monitoring the new magnetar Swift J1555.2-5402 during an X-ray outburst