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タイトル
和文: 
英文:Near-infrared, optical, and X-ray observations of the anomalous X-ray pulsar 4U 0142 + 61 
著者
和文: Morii, M., 河合 誠之, 片岡 淳, Yatsu, Y., Kobayashi, N., Terada, H..  
英文: Morii, M., Kawai, N., Kataoka, J., Yatsu, Y., Kobayashi, N., Terada, H..  
言語 English 
掲載誌/書名
和文: 
英文:Advances in Space Research 
巻, 号, ページ Vol. 35        pp. 1177-1180
出版年月 2005年 
出版者
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会議名称
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開催地
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DOI https://doi.org/10.1016/j.asr.2005.04.051
アブストラクト 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.

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