Near-infrared, optical, and X-ray observations of the anomalous X-ray pulsar 4U 0142 + 61

Mikio Morii; Nobuyuki Kawai; Jun Kataoka; Yoichi Yatsu; Naoto Kobayashi; Hiroshi Terada

doi:10.1016/j.asr.2005.04.051

Near-infrared, optical, and X-ray observations of the anomalous X-ray pulsar 4U 0142 + 61

Mikio Morii^*, Nobuyuki Kawai, Jun Kataoka, Yoichi Yatsu, Naoto Kobayashi, Hiroshi Terada

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	1177-1180
Number of pages	4
Journal	Advances in Space Research
Volume	35
Issue number	6
DOIs	https://doi.org/10.1016/j.asr.2005.04.051
Publication status	Published - 2005
Externally published	Yes

Keywords

Anomalous X-ray pulsar
Magnetar
Neutron star

ASJC Scopus subject areas

Aerospace Engineering
Astronomy and Astrophysics
Geophysics
Atmospheric Science
Space and Planetary Science
Earth and Planetary Sciences(all)

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10.1016/j.asr.2005.04.051

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title = "Near-infrared, optical, and X-ray observations of the anomalous X-ray pulsar 4U 0142 + 61",

abstract = "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.",

keywords = "Anomalous X-ray pulsar, Magnetar, Neutron star",

author = "Mikio Morii and Nobuyuki Kawai and Jun Kataoka and Yoichi Yatsu and Naoto Kobayashi and Hiroshi Terada",

year = "2005",

doi = "10.1016/j.asr.2005.04.051",

language = "English",

volume = "35",

pages = "1177--1180",

journal = "Life sciences and space research",

issn = "0273-1177",

publisher = "Elsevier Limited",

number = "6",

}

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

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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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 -

Near-infrared, optical, and X-ray observations of the anomalous X-ray pulsar 4U 0142 + 61

Abstract

Keywords

ASJC Scopus subject areas

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