LHAASO detection of very-high-energy γ-ray emission surrounding PSR J0248+6021

Simple item page
dc.contributor.authorCao Z.
dc.contributor.authorAharonian F.
dc.contributor.authorAxikegu
dc.contributor.authorBai Y.X.
dc.contributor.authorBao Y.W.
dc.contributor.authorBastieri D.
dc.contributor.authorBi X.J.
dc.contributor.authorBi Y.J.
dc.contributor.authorBian W.
dc.contributor.authorBukevich A.V.
dc.contributor.authorCao Q.
dc.contributor.authorCao W.Y.
dc.contributor.authorCao Z.
dc.contributor.authorChang J.
dc.contributor.authorChang J.F.
dc.contributor.authorChen A.M.
dc.contributor.authorChen E.S.
dc.contributor.authorChen H.X.
dc.contributor.authorChen L.
dc.contributor.authorChen L.
dc.contributor.authorChen L.
dc.contributor.authorChen M.J.
dc.contributor.authorChen M.L.
dc.contributor.authorChen Q.H.
dc.contributor.authorChen S.
dc.contributor.authorChen S.H.
dc.contributor.authorChen S.Z.
dc.contributor.authorChen T.L.
dc.contributor.authorChen Y.
dc.contributor.authorCheng N.
dc.contributor.authorCheng Y.D.
dc.contributor.authorChu M.C.
dc.contributor.authorCui M.Y.
dc.contributor.authorCui S.W.
dc.contributor.authorCui X.H.
dc.contributor.authorCui Y.D.
dc.contributor.authorDai B.Z.
dc.contributor.authorDai H.L.
dc.contributor.authorDai Z.G.
dc.contributor.authorDanzengluobu
dc.contributor.authorDong X.Q.
dc.contributor.authorDuan K.K.
dc.contributor.authorFan J.H.
dc.contributor.authorFan Y.Z.
dc.contributor.authorFang J.
dc.contributor.authorFang J.H.
dc.contributor.authorFang K.
dc.contributor.authorFeng C.F.
dc.contributor.authorFeng H.
dc.contributor.authorFeng L.
dc.contributor.authorFeng S.H.
dc.contributor.authorFeng X.T.
dc.contributor.authorFeng Y.
dc.contributor.authorFeng Y.L.
dc.contributor.authorGabici S.
dc.contributor.authorGao B.
dc.contributor.authorGao C.D.
dc.contributor.authorGao Q.
dc.contributor.authorGao W.
dc.contributor.authorGao W.K.
dc.contributor.authorGe M.M.
dc.contributor.authorGe T.T.
dc.contributor.authorGeng L.S.
dc.contributor.authorGiacinti G.
dc.contributor.authorGong G.H.
dc.contributor.authorGou Q.B.
dc.contributor.authorGu M.H.
dc.contributor.authorGuo F.L.
dc.contributor.authorGuo J.
dc.contributor.authorGuo X.L.
dc.contributor.authorGuo Y.Q.
dc.contributor.authorGuo Y.Y.
dc.contributor.authorHan Y.A.
dc.contributor.authorHannuksela O.A.
dc.contributor.authorHasan M.
dc.contributor.authorHe H.H.
dc.contributor.authorHe H.N.
dc.contributor.authorHe J.Y.
dc.contributor.authorHe Y.
dc.contributor.authorHor Y.K.
dc.contributor.authorHou B.W.
dc.contributor.authorHou C.
dc.contributor.authorHou X.
dc.contributor.authorHu H.B.
dc.contributor.authorHu Q.
dc.contributor.authorHu S.C.
dc.contributor.authorHuang C.
dc.contributor.authorHuang D.H.
dc.contributor.authorHuang T.Q.
dc.contributor.authorHuang W.J.
dc.contributor.authorHuang X.T.
dc.contributor.authorHuang X.Y.
dc.contributor.authorHuang Y.
dc.contributor.authorHuang Y.Y.
dc.contributor.authorJi X.L.
dc.contributor.authorJia H.Y.
dc.contributor.authorJia K.
dc.contributor.authorJiang H.B.
dc.contributor.authorJiang K.
dc.contributor.authorJiang X.W.
dc.contributor.correspondenceCao Z.
dc.contributor.otherMahidol University
dc.date.accessioned2025-02-18T18:23:12Z
dc.date.available2025-02-18T18:23:12Z
dc.date.issued2025-07-01
dc.description.abstractWe report the detection of an extended very-high-energy (VHE) γ-ray source coincident with the location of middle-aged (62.4 kyr) pulsar PSR J0248+6021, by using the LHAASO-WCDA data of live 796 d and LHAASO-KM2A data of live 1216 d. A significant excess of γ-ray induced showers is observed both by WCDA in energy bands of 1–25 TeV and KM2A in energy bands of >25 TeV with 7.3σ and 13.5σ, respectively. The best-fit position derived through WCDA data is R.A. = 42.06° ± 0.12° and Dec. = 60.24° ± 0.13° with an extension of 0.69°±0.15° and that of the KM2A data is R.A.= 42.29° ± 0.13° and Dec. = 60.38° ± 0.07° with an extension of 0.37° ±0.07°. No clear extended multiwavelength counterpart of this LHAASO source has been found from the radio band to the GeV band. The most plausible explanation of the VHE γ-ray emission is the inverse Compton process of highly relativistic electrons and positrons injected by the pulsar. These electrons/positrons are hypothesized to be either confined within the pulsar wind nebula or to have already escaped into the interstellar medium, forming a pulsar halo.
dc.identifier.citationScience China: Physics, Mechanics and Astronomy Vol.68 No.7 (2025)
dc.identifier.doi10.1007/s11433-024-2508-5
dc.identifier.eissn18691927
dc.identifier.issn16747348
dc.identifier.scopus2-s2.0-85217559934
dc.identifier.urihttps://repository.li.mahidol.ac.th/handle/20.500.14594/105350
dc.rights.holderSCOPUS
dc.subjectPhysics and Astronomy
dc.titleLHAASO detection of very-high-energy γ-ray emission surrounding PSR J0248+6021
dc.typeArticle
mu.datasource.scopushttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85217559934&origin=inward
oaire.citation.issue7
oaire.citation.titleScience China: Physics, Mechanics and Astronomy
oaire.citation.volume68
oairecerif.author.affiliationZhejiang Lab
oairecerif.author.affiliationState Key Laboratory of Particle Detection & Electronics
oairecerif.author.affiliationUniversité Paris Cité
oairecerif.author.affiliationYunnan Observatories
oairecerif.author.affiliationNanjing University
oairecerif.author.affiliationShanghai Astronomical Observatory Chinese Academy of Sciences
oairecerif.author.affiliationInstitute for Nuclear Research of the Russian Academy of Sciences
oairecerif.author.affiliationShandong University
oairecerif.author.affiliationYunnan University
oairecerif.author.affiliationInstitute of High Energy Physics, Chinese Academy of Sciences
oairecerif.author.affiliationUniversity of Chinese Academy of Sciences
oairecerif.author.affiliationGuangzhou University
oairecerif.author.affiliationTsinghua University
oairecerif.author.affiliationShanghai Jiao Tong University
oairecerif.author.affiliationSun Yat-Sen University
oairecerif.author.affiliationUniversity of Science and Technology of China
oairecerif.author.affiliationZhengzhou University
oairecerif.author.affiliationInstitiúid Ard-Lénn Bhaile Átha Cliath
oairecerif.author.affiliationNational Astronomical Observatories Chinese Academy of Sciences
oairecerif.author.affiliationMax-Planck-Institut für Kernphysik
oairecerif.author.affiliationSouthwest Jiaotong University
oairecerif.author.affiliationChina Center of Advanced Science and Technology World Laboratory
oairecerif.author.affiliationPurple Mountain Observatory Chinese Academy of Sciences
oairecerif.author.affiliationChinese University of Hong Kong
oairecerif.author.affiliationHebei Normal University
oairecerif.author.affiliationTibet University
oairecerif.author.affiliationTIANFU Cosmic Ray Research Center

Files

Collections

Scopus 2025