On the Infrared, Optical and High Energy Emission from the Anomalous X-Ray Pulsar 4U 0142+615

Abstract

We show that the observed pulsed optical emission of the anomalous X-ray pulsar 4U 0142+61 can be accounted for by both the magnetar outer gap models and the disk-star dynamo gap models, therefore is not an evidence in favor of one of these models as its responsible mechanism. Nevertheless, the estimated high energy gamma-ray spectra from these models have different power-low indices, and can be tested by future observations of the Gamma-ray Large-Area Space Telescope (GLAST). Furthermore, we show by analytical estimations that the expectations of a standard disk model is in agreement with the observed unpulsed optical and infrared luminosities of the AXP 4U 0142+61.

14 pages, 1 figure, accepted for publication in ApJ

References in corpus (6)

• Magnetar-like X-ray Bursts from an Anomalous X-ray Pulsar
• Diagnosing magnetars with transient cooling
• The detection of variability from the candidate IR counterpart to the Anomalous X-ray Pulsar 1E1048.1-5937
• The IR counterpart to the Anomalouos X-ray Pulsar 1RXS J1708-4009
• Can Thin Disks Produce Anomalous X-Ray Pulsars?
• On the Enhanced X-ray Emission from SGR 1900+14 after the August 27 Giant Flare

Cited by in corpus (25)

• The strongest cosmic magnets: Soft Gamma-ray Repeaters and Anomalous X-ray Pulsars
• Magnetar outbursts: an observational review
• Anomalous X-ray pulsars: Persistent States with Fallback Disks
• On the evolution of anomalous X-ray pulsars and soft gamma ray repeaters with fallback disks
• Correlated Infrared and X-ray Flux Changes Following the 2002 June Outburst of the Anomalous X-ray Pulsar 1E 2259+586
• An accretion model for the anomalous X-ray pulsar 4U 0142+61
• A Mid-Infrared Counterpart to the Magnetar 1E 2259+586
• A QED Model for the Origin of Bursts from SGRs and AXPs
• High-speed, multi-colour optical photometry of the anomalous X-ray pulsar 4U 0142+61 with ULTRACAM
• The Anomalous X-Ray Pulsar 4U 0142+61: A Neutron Star with a Gaseous Fallback Disk
• The Energy Spectrum of Anomalous X-ray Pulsars and Soft Gamma-ray Repeaters
• Optical and Infrared Emission from the AXPs and SGRs
• SGR 0418+5729 - How does a Young Neutron Star Spin Down to a 9 s Period with a Dipole Field less than 10^13 G?
• On the X-Ray Light Curve, Pulsed-Radio Emission, and Spin Frequency Evolution of the Transient Anomalous X-Ray Pulsar Xte J1810--197 During its X-Ray Outburst
• The first observation of optical pulsations from a soft gamma repeater: SGR 0501+4516
• X-Ray and Infrared Enhancement of Anomalous X-ray Pulsar 1E 2259+58
• A magnetic white-dwarf accretion model for the anomalous X-ray pulsar 4U 0142+61
• AXPs and SGRs in the outer gap model: confronting Fermi observations
• Non-detection in a Fermi/LAT observation of AXP 4U 0142+61: magnetars?
• On the X-ray Outbursts of Transient Anomalous X-ray Pulsars and Soft Gamma-ray Repeaters
• Fallback Disks, Magnetars and Other Neutron Stars
• Search for Near-Infrared Pulsation of the Anomalous X-ray Pulsar 4U 0142+61
• Non-LTE Models for Neutron Star Atmospheres and Supernova-Fallback Disks
• A Gemini Observation of the Anomalous X-ray Pulsar 1RXS J170849-400910
• Non-LTE modeling of supernova-fallback disks