TY - JOUR
T1 - Near-infrared, optical, and X-ray observations of the anomalous X-ray pulsar 4U 0142 + 61
AU - Morii, Mikio
AU - Kawai, Nobuyuki
AU - Kataoka, Jun
AU - Yatsu, Yoichi
AU - Kobayashi, Naoto
AU - Terada, Hiroshi
N1 - Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2005
Y1 - 2005
N2 - We present results from the simultaneous observations of an anomalous X-ray pulsar (AXP) 4U 0142 + 61 on Sep. 2003. We used RXTE, Subaru, and UH88 telescopes to cover X-ray, near-infrared (NIR) (JHK′), and optical (BVRI) bands, respectively. We obtained a simultaneous broadband spectrum for the first time among AXPs. We found NIR excess in the spectrum, which may be another component different from the optical one. We also found a R band dip. We discuss the broadband spectrum covering the optical and X-ray bands in the framework of a self absorbed synchrotron emission from the magnetosphere of magnetar. We also discuss about the R band dip feature, which could put a restriction on the emission models of magnetars.
AB - We present results from the simultaneous observations of an anomalous X-ray pulsar (AXP) 4U 0142 + 61 on Sep. 2003. We used RXTE, Subaru, and UH88 telescopes to cover X-ray, near-infrared (NIR) (JHK′), and optical (BVRI) bands, respectively. We obtained a simultaneous broadband spectrum for the first time among AXPs. We found NIR excess in the spectrum, which may be another component different from the optical one. We also found a R band dip. We discuss the broadband spectrum covering the optical and X-ray bands in the framework of a self absorbed synchrotron emission from the magnetosphere of magnetar. We also discuss about the R band dip feature, which could put a restriction on the emission models of magnetars.
KW - Anomalous X-ray pulsar
KW - Magnetar
KW - Neutron star
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U2 - 10.1016/j.asr.2005.04.051
DO - 10.1016/j.asr.2005.04.051
M3 - Article
AN - SCOPUS:21744458155
SN - 0273-1177
VL - 35
SP - 1177
EP - 1180
JO - Life sciences and space research
JF - Life sciences and space research
IS - 6
ER -