The TRAPUM L-band survey for pulsars in Fermi-LAT gamma-ray sources
C. J. Clark, R. P. Breton, E. D. Barr, M. Burgay, T. Thongmeearkom, L. Nieder, S. Buchner, B. Stappers, M. Kramer, W. Becker, M. Mayer, A. Phosrisom, A. Ashok, … 展开作者
C. J. Clark, R. P. Breton, E. D. Barr, M. Burgay, T. Thongmeearkom, L. Nieder, S. Buchner, B. Stappers, M. Kramer, W. Becker, M. Mayer, A. Phosrisom, A. Ashok, M. C. Bezuidenhout, F. Calore, I. Cognard, P. C. C. Freire, M. Geyer, J. -M. Grießmeier, R. Karuppusamy, L. Levin, P. V. Padmanabh, A. Possenti, S. Ransom, M. Serylak, V. Venkatraman Krishnan, L. Vleeschower, J. Behrend, D. J. Champion, W. Chen, D. Horn, E. F. Keane, L. Künkel, Y. Men, A. Ridolfi, V. S. Dhillon, T. R. Marsh, M. A. Papa
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17 pages, 8 figures, accepted for publication in MNRAS
More than 100 millisecond pulsars (MSPs) have been discovered in radio observations of gamma-ray sources detected by the Fermi Large Area Telescope (LAT), but hundreds of pulsar-like sources remain unidentified. Here we present the first results from the targeted survey of Fermi-LAT sources being performed by the Transients and Pulsars with MeerKAT (TRAPUM) Large Survey Project. We observed 79 sources identified as possible gamma-ray pulsar candidates by a Random Forest classification of unassociated sources from the 4FGL catalogue. Each source was observed for 10 minutes on two separate epochs using MeerKAT's L-band receiver (856-1712 MHz), with typical pulsed flux density sensitivities of $\sim$100$\,μ$Jy. Nine new MSPs were discovered, eight of which are in binary systems, including two eclipsing redbacks and one system, PSR J1526$-$2744, that appears to have a white dwarf companion in an unusually compact 5 hr orbit. We obtained phase-connected timing solutions for two of these MSPs, enabling the detection of gamma-ray pulsations in the Fermi-LAT data. A follow-up search for continuous gravitational waves from PSR J1526$-$2744 in Advanced LIGO data using the resulting Fermi-LAT timing ephemeris yielded no detection, but sets an upper limit on the neutron star ellipticity of $2.45\times10^{-8}$. We also detected X-ray emission from the redback PSR J1803$-$6707 in data from the first eROSITA all-sky survey, likely due to emission from an intra-binary shock.
The TRAPUM Large Magellanic Cloud pulsar survey with MeerKAT II: 12 new discoveries and timing solutions for 7 pulsars
The University of Cape Town(开普敦大学);University of Cape Town(开普敦大学);The University of Manchester(曼彻斯特大学);North-West University(西北大学);Max-Planck-Institut für Radioastronomie(马克斯·普朗克射电天文研究所);South African Radio Astronomy Observatory (SARAO)(南非射电天文台);INAF – Osservatorio Astronomico di Cagliari(意大利国家天体物理研究所卡利亚里天文台);LAPTh, CNRS, USMB(拉格朗日天体物理实验室,法国国家科学研究中心,尚贝里大学);Swinburne University of Technology(斯威本科技大学);OzGrav: The ARC Center of Excellence for Gravitational Wave Discovery(澳引力波发现卓越中心);Max Planck Institute for Gravitational Physics (Albert Einstein Institute)(马克斯·普朗克引力物理研究所(爱因斯坦研究所));Leibniz Universität Hannover(汉诺威莱布尼茨大学);Universität Bielefeld(比勒费尔德大学);National Astronomical Research Institute of Thailand(泰国国家天文研究所);National Institute for Theoretical and Computational Sciences, South Africa(南非理论与计算科学研究所)
Pulsar Discoveries from the TRAPUM UHF Survey of Fermi-LAT Sources
The University of Manchester(曼彻斯特大学);National Astronomical Research Institute of Thailand(泰国国家天文研究所);Max Planck Institute for Gravitational Physics (Albert Einstein Institute)(马克斯·普朗克引力物理研究所(爱因斯坦研究所));Leibniz Universität Hannover(汉诺威莱布尼茨大学);INAF – Osservatorio Astronomico di Cagliari(意大利国家天体物理研究所卡利亚里天文台)
Optical Study of TRAPUM Pulsars and Modelling of the Redbacks: PSR J1036$-$4353 and PSR J1803$-$6707
The University of Manchester(曼彻斯特大学);National Astronomical Research Institute of Thailand(泰国国家天文研究所);Max Planck Institute for Gravitational Physics (Albert Einstein Institute)(马克斯·普朗克引力物理研究所(爱因斯坦研究所));Leibniz University Hannover(汉诺威莱布尼茨大学);INAF - Osservatorio Astronomico di Cagliari(意大利国家天体物理研究所-卡利亚里天文台);Michigan State University(密歇根州立大学);University of Illinois at Urbana-Champaign(伊利诺伊大学厄巴纳-香槟分校);University College Cork(科克大学学院);Heidelberg University(海德堡大学);University of Sheffield(谢菲尔德大学)
The pulsar population of Omega Centauri: New TRAPUM searches, timing, and cluster dynamics with MeerKAT and Parkes
INAF – Osservatorio Astronomico di Cagliari(意大利国家天体物理研究所卡利亚里天文台);Max-Planck-Institut für Radioastronomie(马克斯·普朗克射电天文研究所);Australia Telescope National Facility, CSIRO(CSIRO澳大利亚望远镜国家设施);School of Science, Western Sydney University(西悉尼大学理学院);Space Science Division, Naval Research Laboratory(海军研究实验室空间科学部);South African Radio Astronomy Observatory(南非射电天文观测站)
Radio and Gamma-Ray Timing of a Newly Discovered Millisecond Pulsar
University of Wisconsin-Milwaukee(密尔沃基威斯康星大学);Max Planck Institute for Gravitational Physics (Albert Einstein Institute)(马克斯·普朗克引力物理研究所(爱因斯坦研究所));Leibniz Universität Hannover(汉诺威莱布尼茨大学);University of North Carolina at Chapel Hill(北卡罗来纳大学教堂山分校)
The High Time Resolution Universe Pulsar Survey -- XV: completion of the intermediate latitude survey with the discovery and timing of 25 further pulsars
The Vela pulsar and its pulsar wind nebula Vela-X using 13 years of Fermi-LAT Observations
The George Washington University(乔治华盛顿大学);NASA Goddard Space Flight Center(美国宇航局戈达德太空飞行中心);SRON-Netherlands Institute for Space Research(荷兰空间研究所);University of Maryland, Baltimore County(马里兰大学巴尔的摩县分校);The Catholic University of America(美利坚天主教大学)
Search for gamma-ray variability around Fermi-LAT pulsar glitches
Friedrich-Alexander Universität Erlangen-Nürnberg(弗里德里希·亚历山大埃尔朗根-纽伦堡大学);Istituto Nazionale di Fisica Nucleare, Sezione di Pisa(意大利国家核物理研究所比萨分部);Università di Pisa, Dipartimento di Fisica E. Fermi(比萨大学E.费米物理系);Santa Cruz Institute for Particle Physics, Department of Physics and Department of Astronomy and Astrophysics, University of California at Santa Cruz(加州大学圣克鲁兹分校粒子物理研究所、物理系和天文与天体物理系)