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

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

2003-12-29

arxiv.org/abs/astro-ph/0312630v1

Astrophys.J. 605 (2004) 840-845

Astronomy and Astrophysics

Astrophysics

14 pages, 1 figure, accepted for publication in ApJ

Scientific paper

10.1086/382502

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.

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