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Einstein@Home discovers a radio-quiet gamma-ray millisecond pulsar
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2018 (English)In: Science Advances, ISSN 0036-8156, E-ISSN 2375-2548, Vol. 4, no 2, article id eaao7228Article in journal (Refereed) Published
Abstract [en]

Millisecond pulsars (MSPs) are old neutron stars that spin hundreds of times per second and appear to pulsate as their emission beams cross our line of sight. To date,radio pulsations have been detected from all rotation-powered MSPs. In an attempt to discover radio-quiet gamma-ray MSPs,we used the aggregated power from the computers of tens of thousands of volunteers participating in the Einstein@Home distributed computing project to search for pulsations from unidentified gamma-ray sources in Fermi Large Area Telescope data. This survey discovered two isolated MSPs,one of which is the only known rotation-powered MSP to remain undetected in radio observations. These gamma-ray MSPs were discovered in completely blind searches without prior constraints from other observations,raising hopes for detecting MSPs from a predicted Galactic bulge population. 

Place, publisher, year, edition, pages
American Association for the Advancement of Science , 2018. Vol. 4, no 2, article id eaao7228
Keywords [en]
Distributed computer systems, Pulsars, Blind searches, Emission beams, Galactic bulge, Gamma ray sources, Large area telescopes, Millisecond pulsars, Neutron stars, Radio observation, Gamma rays
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-227431DOI: 10.1126/sciadv.aao7228ISI: 000426845500043Scopus ID: 2-s2.0-85044781385OAI: oai:DiVA.org:kth-227431DiVA, id: diva2:1211018
Note

Export Date: 9 May 2018; Article; Correspondence Address: Clark, C.J.; Albert-Einstein-Institut, Max-Planck-Institut für GravitationsphysikGermany; email: colin.clark-2@manchester.ac.uk. QC 20180530

Available from: 2018-05-30 Created: 2018-05-30 Last updated: 2018-05-30Bibliographically approved

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