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A compact X-ray emitting binary in likely association with 4FGL J0935.3+0901
Wang, Zhongxiang1; Xing, Yi1; Zhang, Jujia2,3; Boutsia, Konstantina4; Wang, Gege1; Jithesh, V5; Burdge, Kevin B.6; Coughlin, Michael W.7; Duev, Dmitry A.7; Kulkarni, S. R.6,7; Riddle, Reed6; Serabyn, Eugene8
2020-04-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume493Issue:4Pages:4845-4851
Abstract4FGL J0935.3+0901 is a gamma-ray source detected by the Large Area Telescope (LAT) onboard the Fermi Gamma-Ray Space Telescope. We have conducted detailed analysis of the LAT data for this source and multiwavelength studies of the source field. Its gamma-ray emission can be described with a power law (Gamma = 2.0 +/- 0.2) with an exponential cut-off (E-c = 2.9 +/- 1.6 GeV), while the flux shows significant long-term variations. From analysis of archival Neil Gehrels Swift Observatory X-Ray Telescope data, we find only one X-ray source in the LAT's 2 sigma error region. Within a 3.7 arcsec radius error circle of the X-ray source, there is only one optical object down to r' similar to 23 mag. Time-resolved photometry of the optical object indicates a likely 2.5 h periodic modulation, while its spectrum shows double-peaked hydrogen and helium emission lines (similar to those seen in accretion discs in low-mass X-ray binaries). Combining these results, we conclude that we have discovered a compact X-ray emitting binary in likely association with 4FGL J0935.3+0901, i.e. a millisecond pulsar (MSP) binary. We discuss the implication of the optical spectral features: this binary could be a transitional MSP system at a subluminous disc state, although the other possibility, the binary in a rotation powered state showing the optical emission lines due to intrabinary interaction processes, cannot be excluded. Further observational studies will help to determine detailed properties of this candidate MSP binary and thus clarify its current state.
Keywordstars: neutron pulsars: general gamma-rays: stars X-rays: binaries
Funding OrganizationNational Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC ; NSFC ; Youth Innovation PromotionAssociation of the Chinese Academy of Sciences ; Youth Innovation PromotionAssociation of the Chinese Academy of Sciences ; Western Light Youth Project ; Western Light Youth Project ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC ; NSFC ; Youth Innovation PromotionAssociation of the Chinese Academy of Sciences ; Youth Innovation PromotionAssociation of the Chinese Academy of Sciences ; Western Light Youth Project ; Western Light Youth Project ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC ; NSFC ; Youth Innovation PromotionAssociation of the Chinese Academy of Sciences ; Youth Innovation PromotionAssociation of the Chinese Academy of Sciences ; Western Light Youth Project ; Western Light Youth Project ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC ; NSFC ; Youth Innovation PromotionAssociation of the Chinese Academy of Sciences ; Youth Innovation PromotionAssociation of the Chinese Academy of Sciences ; Western Light Youth Project ; Western Light Youth Project
DOI10.1093/mnras/staa655
WOS KeywordPULSAR PSR J1023+0038 ; MILLISECOND PULSAR ; STATE
Language英语
Funding ProjectNational Program on Key Research and Development Project[2016YFA0400804] ; National Natural Science Foundation of China[11633007] ; National Natural Science Foundation of China[U1738131] ; NSFC[11773067] ; NSFC[11403096] ; Youth Innovation PromotionAssociation of the Chinese Academy of Sciences[2018081] ; Western Light Youth Project
Funding OrganizationNational Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC ; NSFC ; Youth Innovation PromotionAssociation of the Chinese Academy of Sciences ; Youth Innovation PromotionAssociation of the Chinese Academy of Sciences ; Western Light Youth Project ; Western Light Youth Project ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC ; NSFC ; Youth Innovation PromotionAssociation of the Chinese Academy of Sciences ; Youth Innovation PromotionAssociation of the Chinese Academy of Sciences ; Western Light Youth Project ; Western Light Youth Project ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC ; NSFC ; Youth Innovation PromotionAssociation of the Chinese Academy of Sciences ; Youth Innovation PromotionAssociation of the Chinese Academy of Sciences ; Western Light Youth Project ; Western Light Youth Project ; National Program on Key Research and Development Project ; National Program on Key Research and Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC ; NSFC ; Youth Innovation PromotionAssociation of the Chinese Academy of Sciences ; Youth Innovation PromotionAssociation of the Chinese Academy of Sciences ; Western Light Youth Project ; Western Light Youth Project
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000539094400018
PublisherOXFORD UNIV PRESS
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Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/83283
Collection中国科学院国家天文台
Corresponding AuthorWang, Zhongxiang
Affiliation1.Chinese Acad Sci, Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China
2.Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China
3.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650216, Yunnan, Peoples R China
4.Carnegie Observ, Las Campanas Observ, Casilla 601, La Serena, Chile
5.Interuniv Ctr Astron & Astrophys, Pune 411007, Maharashtra, India
6.CALTECH, Caltech Opt Observ, Pasadena, CA 91125 USA
7.CALTECH, Div Phys Math & Astron, Pasadena, CA 91125 USA
8.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA
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GB/T 7714
Wang, Zhongxiang,Xing, Yi,Zhang, Jujia,et al. A compact X-ray emitting binary in likely association with 4FGL J0935.3+0901[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,493(4):4845-4851.
APA Wang, Zhongxiang.,Xing, Yi.,Zhang, Jujia.,Boutsia, Konstantina.,Wang, Gege.,...&Serabyn, Eugene.(2020).A compact X-ray emitting binary in likely association with 4FGL J0935.3+0901.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,493(4),4845-4851.
MLA Wang, Zhongxiang,et al."A compact X-ray emitting binary in likely association with 4FGL J0935.3+0901".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 493.4(2020):4845-4851.
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