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lDISCOVERY OF A REDBACK MILLISECOND PULSAR CANDIDATE: 3FGL J0212.1+5320
Li, Kwan-Lok1; Kong, Albert K. H.2; Hou X(侯贤)2,3,4; Mao JR(毛基荣)3,4; Strader, Jay1; Chomiuk, Laura1; Tremou, Evangelia1; Li, KL (reprint author), Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
发表期刊ASTROPHYSICAL JOURNAL
2016-12-20
卷号833期号:2
DOI10.3847/1538-4357/833/2/143
产权排序第3完成单位
收录类别SCI
关键词Binaries: Close Gamma-rays: Stars Pulsars: General X-rays: Binaries
摘要We present a multiwavelength study of the unidentified Fermi object, 3FGL J0212.1+5320. Within the 95% error ellipse, Chandra detects a bright X-ray source (i.e., F0.5-7 (keV) = 1.4 x 10(-12) erg cm(-2) s(-1)) that has a low-mass optical counterpart (M less than or similar to 0.4M circle dot and T similar to 6000 K). A clear ellipsoidal modulation is shown in optical/infrared at 20.87 hr. The gamma-ray properties of 3FGL J0212.1+5320 are all consistent with that of a millisecond pulsar (MSP), suggesting that it is gamma-ray redback (RB) MSP binary with a low-mass companion filling greater than or similar to 64% of the Roche lobe. If confirmed, it will be an RB binary with one of the longest orbital periods known. Spectroscopic data taken in 2015 from the Lijiang observatory show no evidence of strong emission lines, revealing that the accretion is currently inactive (the rotation-powered pulsar state). This is consistent with the low X-ray luminosities (L-X approximate to 10(32) erg s(-1)) and the possible X-ray modulation seen by Chandra and Swift. Considering that the X-ray luminosity and the high X-ray-to-gamma-ray flux ratio (8%) are both comparable to those of the two known gamma-ray transitional MSPs, we suspect that 3FGL J0212.1+5320 could be a potential target to search for future transition to the accretion active state.
项目资助者National Aeronautics and Space Administration through Chandra Award(DD5-16078X) ; National Aeronautics Space Administration(NAS8-03060) ; NASA(NNX15AU83G) ; Ministry of Science and Technology of Taiwan(103-2628-M-007-003-MY3, 104-2811-M-007-059) ; National Natural Science Foundation of China(11503078) ; Hundred Talent Program of Chinese Academy of Sciences ; Key Research Program of Chinese Academy of Sciences(KJZD-EW-M06) ; Introducing Oversea Talent Plan of Yunnan Province ; Packard Fellowship ; Chinese Academy of Sciences ; People's Government of Yunnan Province
语种英语
学科领域天文学
文章类型Article
ISSN0004-637X
URL查看原文
WOS记录号WOS:000391169600018
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]BINARY PSR J1023+0038 ; LIMB-DARKENING COEFFICIENTS ; GAMMA-RAY SOURCES ; SOURCE CATALOG ; SKY SURVEY ; NUSTAR OBSERVATIONS ; LIGHT CURVES ; TELESCOPE ; DISCOVERY ; STARS
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被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/9876
专题高能天体物理研究组
中国科学院天体结构与演化重点实验室
通讯作者Li, KL (reprint author), Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
作者单位1.Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
2.Institute of Astronomy and Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan
3.Yunnan Observatories, Chinese Academy of Sciences, Kunming, 650216, China
4.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, 650216, China
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Li, Kwan-Lok,Kong, Albert K. H.,Hou X,et al. lDISCOVERY OF A REDBACK MILLISECOND PULSAR CANDIDATE: 3FGL J0212.1+5320[J]. ASTROPHYSICAL JOURNAL,2016,833(2).
APA Li, Kwan-Lok.,Kong, Albert K. H..,Hou X.,Mao JR.,Strader, Jay.,...&Li, KL .(2016).lDISCOVERY OF A REDBACK MILLISECOND PULSAR CANDIDATE: 3FGL J0212.1+5320.ASTROPHYSICAL JOURNAL,833(2).
MLA Li, Kwan-Lok,et al."lDISCOVERY OF A REDBACK MILLISECOND PULSAR CANDIDATE: 3FGL J0212.1+5320".ASTROPHYSICAL JOURNAL 833.2(2016).
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