Magnetic dipolar geometry unveiled from a long-period radio pulsar

Magnetic dipolar geometry unveiled from a long-period radio pulsar | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Magnetic dipolar geometry unveiled from a long-period radio pulsar Rui Luo, Shiqian Zhao, Xiancong Wu, Shuangqiang Wang, Lingzhi Wang, and 22 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8477576/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted You are reading this latest preprint version Abstract The radio emission observed from rotating compact objects like radio pulsars and ultralong period radio transients (LPTs) is not fully understood, as coherent radiation is thought to be difficult to produce without sufficient spin-down power. PSR J0901-4046 is a radio pulsar with the longest period of 76 seconds known to date, and may act as a "transition state" between known radio pulsars and LPTs. Here we present the key results from a synergic monitoring program for PSR J0901-4046 with the Parkes radio telescope and the MPG/ESO 2.2-metre optical telescope. We detected a series of single pulses, among which one event perfectly follows the quasi-periodicity correlation established by radio-emitting neutron stars. For the first time, we have successfully folded the integrated pulse profile by timing the pulsar and then measured its polarization properties. Using the rotating vector model that depicts the geometry of a moving dipolar magnetic field, we fitted the key parameters and unveiled its geometry. The peculiar radiation characteristics of PSR J0901-4046 possibly provide constraints for the coherent radiation theory of radio pulsars. All the findings favour a canonical neutron-star framework for this pulsar. Physical sciences/Astronomy and planetary science/Astronomy and astrophysics/Compact astrophysical objects Physical sciences/Astronomy and planetary science/Astronomy and astrophysics/Transient astrophysical phenomena Physical sciences/Astronomy and planetary science/Astronomy and astrophysics/High-energy astrophysics Physical sciences/Astronomy and planetary science/Astronomy and astrophysics/Time-domain astronomy Full Text Additional Declarations There is NO Competing Interest. Cite Share Download PDF Status: Under Review Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-8477576","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":577533747,"identity":"f51cdc7f-8528-4bff-887d-98f299f089e0","order_by":0,"name":"Rui 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