کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10695980 | 1020285 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Near-infrared, optical, and X-ray observations of the anomalous X-ray pulsar 4U 0142Â +Â 61
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
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چکیده انگلیسی
We present results from the simultaneous observations of an anomalous X-ray pulsar (AXP) 4U 0142Â +Â 61 on Sep. 2003. We used RXTE, Subaru, and UH88 telescopes to cover X-ray, near-infrared (NIR) (JHKâ²), 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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Space Research - Volume 35, Issue 6, 2005, Pages 1177-1180
Journal: Advances in Space Research - Volume 35, Issue 6, 2005, Pages 1177-1180
نویسندگان
Mikio Morii, Nobuyuki Kawai, Jun Kataoka, Yoichi Yatsu, Naoto Kobayashi, Hiroshi Terada,