Optical and Infrared Lightcurve Modeling of the Gamma-ray Millisecond Pulsar 2FGL J2339.6-0532
We report the detection of a quasi-sinusoidally modulated optical flux with a period of 4.6343 hour in the optical and infrared band of the Fermi source 2FGL J2339.7-0531. Comparing the multi-wavelength observations, we suggest that 2FGL J2339.7- 0531 is a γ-ray emitting millisecond pulsar (MSP) i...
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doaj-1cb4a77d449141a1964f58bbaa7c6f782020-11-24T23:43:14ZengKorean Space Science Society (KSSS)Journal of Astronomy and Space Sciences2093-55872093-14092013-09-0130315916210.5140/JASS.2013.30.3.159Optical and Infrared Lightcurve Modeling of the Gamma-ray Millisecond Pulsar 2FGL J2339.6-0532Tzu-Ching Yen0Albert Kwok-Hing Kong1Yoichi Yatsu2Hidekazu Hanayama3Takahiro Nagayama4on behalf of OISTER5Institute of Astronomy, National Tsing Hua University, Hsinchu, TaiwanInstitute of Astronomy, National Tsing Hua University, Hsinchu, TaiwanDept. of Physics, Tokyo Institute of Technology, Tokyo, JapanIshigaki Astronomical Observatory, National Astronomical Observatory of Japan, Okinawa, JapanDeptartment of Astrophysics, Nagoya University, Nagoya, JapanOptical and Infrared Synergetic Telescopes for Education and ResearchWe report the detection of a quasi-sinusoidally modulated optical flux with a period of 4.6343 hour in the optical and infrared band of the Fermi source 2FGL J2339.7-0531. Comparing the multi-wavelength observations, we suggest that 2FGL J2339.7- 0531 is a γ-ray emitting millisecond pulsar (MSP) in a binary system with an optically visible late-type companion accreted by the pulsar, where the MSP is responsible for the γ-ray emission while the optical and infrared emission originate from the heated side of the companion. Based on the optical properties, the companion star is believed to be heated by the pulsar and reaches peak magnitude when the heated side faces the observer. We conclude that 2FGL J2339.7-0531 is a member of a subclass of γ-ray emitting pulsars -the ‘black widows’- recently revealed to be evaporating their companions in the late-stage of recycling as a prominent group of these newly revealed Fermi sources.http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2013/v30n3/OJOOBS_2013_v30n3_159.pdfpulsarsgamma-rays |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tzu-Ching Yen Albert Kwok-Hing Kong Yoichi Yatsu Hidekazu Hanayama Takahiro Nagayama on behalf of OISTER |
spellingShingle |
Tzu-Ching Yen Albert Kwok-Hing Kong Yoichi Yatsu Hidekazu Hanayama Takahiro Nagayama on behalf of OISTER Optical and Infrared Lightcurve Modeling of the Gamma-ray Millisecond Pulsar 2FGL J2339.6-0532 Journal of Astronomy and Space Sciences pulsars gamma-rays |
author_facet |
Tzu-Ching Yen Albert Kwok-Hing Kong Yoichi Yatsu Hidekazu Hanayama Takahiro Nagayama on behalf of OISTER |
author_sort |
Tzu-Ching Yen |
title |
Optical and Infrared Lightcurve Modeling of the Gamma-ray Millisecond Pulsar 2FGL J2339.6-0532 |
title_short |
Optical and Infrared Lightcurve Modeling of the Gamma-ray Millisecond Pulsar 2FGL J2339.6-0532 |
title_full |
Optical and Infrared Lightcurve Modeling of the Gamma-ray Millisecond Pulsar 2FGL J2339.6-0532 |
title_fullStr |
Optical and Infrared Lightcurve Modeling of the Gamma-ray Millisecond Pulsar 2FGL J2339.6-0532 |
title_full_unstemmed |
Optical and Infrared Lightcurve Modeling of the Gamma-ray Millisecond Pulsar 2FGL J2339.6-0532 |
title_sort |
optical and infrared lightcurve modeling of the gamma-ray millisecond pulsar 2fgl j2339.6-0532 |
publisher |
Korean Space Science Society (KSSS) |
series |
Journal of Astronomy and Space Sciences |
issn |
2093-5587 2093-1409 |
publishDate |
2013-09-01 |
description |
We report the detection of a quasi-sinusoidally modulated optical flux with a period of 4.6343 hour in the optical and infrared
band of the Fermi source 2FGL J2339.7-0531. Comparing the multi-wavelength observations, we suggest that 2FGL J2339.7-
0531 is a γ-ray emitting millisecond pulsar (MSP) in a binary system with an optically visible late-type companion accreted
by the pulsar, where the MSP is responsible for the γ-ray emission while the optical and infrared emission originate from the
heated side of the companion. Based on the optical properties, the companion star is believed to be heated by the pulsar and
reaches peak magnitude when the heated side faces the observer. We conclude that 2FGL J2339.7-0531 is a member of a subclass
of γ-ray emitting pulsars -the ‘black widows’- recently revealed to be evaporating their companions in the late-stage of
recycling as a prominent group of these newly revealed Fermi sources. |
topic |
pulsars gamma-rays |
url |
http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2013/v30n3/OJOOBS_2013_v30n3_159.pdf |
work_keys_str_mv |
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