PMO OpenIR  > 太阳活动的多波段观测研究团组
Discovery of two new pulsars in 47 Tucanae (NGC 104)
Pan, Z.1; Hobbs, G.2; Li, D.1,3; Ridolfi, A.4; Wang, P.1; Freire, P.4
2016-06-11
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume459Issue:1Pages:L26-L30
AbstractWe report the discovery of two new millisecond pulsars (PSRs J0024-7204aa and J0024-7204ab) in the globular cluster 47 Tucanae (NGC 104). Our results bring the total number of pulsars in 47 Tucanae to 25. These pulsars were discovered by reprocessing archival observations from the Parkes radio telescope. We reprocessed the data using a standard search procedure based on the PRESTO software package as well as using a new method in which we incoherently added the power spectra corresponding to similar to 1100 h of observations. The newly discovered PSR J0024-7204aa, has a pulse frequency of similar to 541 Hz (corresponding to a similar to 1.84 ms period), which is higher than any other pulsars currently known in the cluster and ranks 12th amongst all the currently known pulsars. The dispersion measure of this pulsar, 24.941(7) cm(-3) pc, is the highest in the cluster. The second discovered pulsar, PSR J0024-7204ab, is an isolated pulsar with a pulse frequency of similar to 270 Hz (corresponding to a period of similar to 3.70 ms).
KeywordPulsars: General
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1093/mnrasl/slw037
WOS KeywordGLOBULAR-CLUSTER 47-TUCANAE ; MILLISECOND PULSARS ; TELESCOPE ; TERZAN-5
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000376388000006
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Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/16216
Collection太阳活动的多波段观测研究团组
Affiliation1.Chinese Acad Sci, Natl Astron Observ, A20 Datun Rd, Beijing 100012, Peoples R China
2.CSIRO, Astron & Space Sci, POB 76, Epping, NSW 1710, Australia
3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China
4.Max Planck Inst Radioastron, MPIfR, Hugel 69, D-53121 Bonn, Germany
Recommended Citation
GB/T 7714
Pan, Z.,Hobbs, G.,Li, D.,et al. Discovery of two new pulsars in 47 Tucanae (NGC 104)[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,459(1):L26-L30.
APA Pan, Z.,Hobbs, G.,Li, D.,Ridolfi, A.,Wang, P.,&Freire, P..(2016).Discovery of two new pulsars in 47 Tucanae (NGC 104).MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,459(1),L26-L30.
MLA Pan, Z.,et al."Discovery of two new pulsars in 47 Tucanae (NGC 104)".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 459.1(2016):L26-L30.
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