Discovery of hard non-thermal pulsed X-ray emission from the anomalous X-ray pulsar 1E 1841-045

Abstract

We report the discovery of non-thermal pulsed X-ray/soft gamma-ray emission up to about 150 keV from the anomalous X-ray pulsar AXP 1E 1841-045 located near the centre of supernova remnant Kes 73 using RXTE PCA and HEXTE data. The morphology of the double-peaked pulse profile changes rapidly with energy from 2 keV up to about 8 keV, above which the pulse shape remains more or less stable. The pulsed spectrum is very hard, its shape above 10 keV can be described well by a power law with a photon index of 0.94 +/- 0.16. 1E 1841-045 is the first AXP for which such very-hard pulsed emission has been detected, which points to an origin in the magnetosphere of a magnetar.

14 pages in ApJ preprint style, 5 figures one in color, Submitted to ApJ

Cited by in corpus (100)

• Magnetars
• Physics of Strongly Magnetized Neutron Stars
• The strongest cosmic magnets: Soft Gamma-ray Repeaters and Anomalous X-ray Pulsars
• Magnetars: the physics behind observations
• Unifying the observational diversity of isolated neutron stars via magneto-thermal evolution models
• Corona of Magnetars
• Magnetars: Properties, Origin and Evolution
• Discovery of luminous pulsed hard X-ray emission from anomalous X-ray pulsars 1RXS J1708-4009, 4U 0142+61 and 1E 2259+586 by INTEGRAL and RXTE
• Revival of the magnetar PSR J1622-4950: observations with MeerKAT, Parkes, XMM-Newton, Swift, Chandra, and NuSTAR
• On the mechanism of hard X-ray emission from magnetars
• Magnetars as persistent hard X-ray sources: INTEGRAL discovery of a hard tail in SGR 1900+14
• Formation Rates and Evolution Histories of Magnetars
• Atmosphere Models of Magnetized Neutron Stars: QED Effects, Radiation Spectra, and Polarization Signals
• High Energy Emission from Magnetars
• Magnetar outbursts: an observational review
• Gamma-ray continuum emission from the inner Galactic region as observed with INTEGRAL/SPI
• Surface Emission from Neutron Stars and Implications for the Physics of their Interiors
• Resonant cyclotron scattering in magnetars' emission
• Resonant Cyclotron Scattering in Three Dimensions and the Quiescent Non-thermal X-ray Emission of Magnetars
• INTEGRAL SPI All-Sky View in Soft Gamma Rays: Study of Point Source and Galactic Diffuse Emissions
• The Compact X-ray Source 1E 1547.0-5408 and the Radio Shell G327.24-0.13: A New Proposed Association between a Candidate Magnetar and a Candidate Supernova Remnant
• The first outburst of the new magnetar candidate SGR 0501+4516
• Resonant Compton Upscattering in Anomalous X-ray Pulsars
• Detailed high-energy characteristics of AXP 4U 0142+61 - Multi-year observations with INTEGRAL, RXTE, XMM-Newton and ASCA
• Recent Progress on Anomalous X-ray Pulsars
• INTEGRAL survey of the Cassiopeia region in hard X rays
• INTEGRAL discovery of persistent hard X-ray emission from the Soft Gamma Ray Repeater SGR 1806-20
• Comparing Neutron Star Kicks to Supernova Remnant Asymmetries
• Detailed high-energy characteristics of AXP 1RXS J170849-400910 - Probing the magnetosphere using INTEGRAL, RXTE and XMM-Newton
• The Spectral Evolution of Transient Anomalous X-ray Pulsar XTE J1810--197
• Fading of the Transient Anomalous X-ray Pulsar XTE J1810-197
• Post-glitch variability in the Anomalous X-ray Pulsar 1RXS J170849.0-400910
• Magnetars: a short review and some sparse considerations
• X-ray spectra from magnetar candidates. II Resonant cross sections for electron-photon scattering in the relativistic regime
• From outburst to quiescence: the decay of the transient Anomalous X-ray Pulsar XTE J1810-197
• Extinction Columns and Intrinsic X-ray Spectra of the Anomalous X-ray Pulsars
• Two Magnetar Candidates in HESS Supernova Remnants
• X-Ray Polarimetry with the Polarization Spectroscopic Telescope Array (PolSTAR)
• Resonant Inverse Compton Scattering Spectra from Highly-magnetized Neutron Stars
• Constraining Axion-Like-Particles with Hard X-ray Emission from Magnetars
• Discovery and Monitoring of the likely IR Counterpart of SGR 1806-20 during the 2004 gamma-ray burst-active state
• Topology of magnetars external field. I. Axially symmetric fields
• A QED Model for Non-thermal Emission from SGRs and AXPs
• The Broad-Band Spectrum and Infrared Variability of the Magnetar AXP 1E1048.1-5937
• Electrodynamics of Magnetars III: Pair Creation Processes in an Ultrastrong Magnetic Field and Particle Heating in a Dynamic Magnetosphere
• Multi-instrument X-ray monitoring of the January 2009 outburst from the recurrent magnetar candidate 1E 1547.0-5408
• Search for gamma-ray emission from magnetars with the Fermi Large Area Telescope
• Suzaku Discovery of a Hard X-Ray Tail in the Persistent Spectra from the Magnetar 1E 1547.0-5408 during its 2009 Activity
• On the X-ray Spectra of Anomalous X-ray Pulsars and Soft Gamma Repeaters
• Pulsars and magnetars
• The Energy Spectrum of Anomalous X-ray Pulsars and Soft Gamma-ray Repeaters
• Pressure of Degenerate and Relativistic electrons in a superhigh magnetic field
• NuSTAR observations of magnetar 1E 1841-045
• Soft and Hard X-Ray Emissions from the Anomalous X-ray Pulsar 4U 0142+61 Observed with Suzaku
• Temporal and spectral evolution in X- and gamma-rays of magnetar 1E 1547.0-5408 since its October 2008 outburst: the discovery of a transient hard pulsed component after its January 2009 outburst
• Electrodynamics of Magnetars IV: Self-Consistent Model of the Inner Accelerator, with Implications for Pulsed Radio Emission
• Spectral modelling of the high energy emission of the magnetar 4U 0142+614
• INTEGRAL: science highlights and future prospects
• Swift and Chandra confirm the intensity-hardness correlation of the AXP 1RXS J170849.0-400910
• IXPE Detection of Polarized X-rays from Magnetars and Photon Mode Conversion at QED Vacuum Resonance
• Adaptive optics near-infrared observations of magnetars
• Magnetars and Axion-like Particles: Probes with the Hard X-ray Spectrum
• A glitch and an anti-glitch in the anomalous X-ray pulsar 1E 1841-045
• Low-magnetic-field magnetars
• Cooling Rates for Relativistic Electrons Undergoing Compton Scattering in Strong Magnetic Fields
• Compton scattering in strong magnetic fields: Spin-dependent influences at the cyclotron resonance
• Dissecting the region of 3EG J1837-0423 and HESS J1841-055 with INTEGRAL
• X-ray emission from isolated neutron stars
• Gamma-ray upper limits on magnetars with 6 years of Fermi-LAT observations
• Magnetar Corona
• Axions: From Magnetars and Neutron Star Mergers to Beam Dumps and BECs
• SWIFT study of the first SGR-like burst from AXP 1E 1841-045 in SNR Kes 73
• Five years of SGR 1900+14 observations with BeppoSAX
• Magnetic Field-Decay-Induced Electron Captures: a Strong Heat Source in Magnetar Crusts
• Long-term evolution of anomalous X-ray pulsars and soft gamma repeaters
• Our distorted view of magnetars: application of the Resonant Cyclotron Scattering model
• Pair Plasma in Super-QED Magnetic Fields and the Hard X-ray/Optical Emission of Magnetars
• Search for High-Energy Gamma-ray Emission from an Anomalous X-ray Pulsar, 4U 0142+61
• Magnetic Pair Creation Transparency in Gamma-Ray Pulsars
• Constraining compactness and magnetic field geometry of X-ray pulsars from the statistics of their pulse profiles
• Spin and Spectral Variations of Peculiar High-Mass X-ray Binary 4U 2206+54
• The INTEGRAL view of the pulsating hard X-ray sky: from accreting and transitional millisecond pulsars to rotation-powered pulsars and magnetars
• A Deep Infrared Search for AXP 1E 1841-045
• The first multi-wavelength campaign of AXP 4U 0142+61 from radio to hard X-rays
• The Suzaku Discovery of A Hard Power-Law Component in the Spectra of Short Bursts from SGR 0501+4516
• Prospects in space-based Gamma-Ray Astronomy
• Hard X-ray/Soft gamma-ray experiments and missions: overview and prospects
• Axion Constraints from Quiescent Soft Gamma-ray Emission from Magnetars
• Suzaku Observation of the Anomalous X-ray Pulsar 1E 1841-045
• QED can explain the non-thermal emission from SGRs and AXPs : Variability
• NuSTAR Observations of Magnetar 1E 1048.1-5937
• Broad-band X-ray spectra of anomalous X-ray pulsars and soft $\gamma$-ray repeaters: pulsars in a weak-accretion regime ?
• Hard X-ray emission cutoff in anomalous X-ray pulsar 4U 0142+61 detected by INTEGRAL
• X-ray Perspective of the Twisted Magnetospheres of Magnetars
• Concise Spectrotemporal Studies of Magnetar SGR J1935+2154 Bursts
• Hard X-ray Quiescent Emission in Magnetars via Resonant Compton Upscattering
• Magnetar giant flare high-energy emission
• XMM-Newton Spectrum of the magnetar CXOU J171405.7-381031
• Energy Dependent Intensity Variation of the Persistent X-ray Emission of Magnetars Observed with Suzaku
• Pulsed γ-ray emission from magnetar 1E 2259+586