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| title | chunk | source | category | tags | date_saved | instance |
|---|---|---|---|---|---|---|
| Einstein@Home | 4/6 | https://en.wikipedia.org/wiki/Einstein@Home | reference | science, encyclopedia | 2026-05-05T04:11:47.567076+00:00 | kb-cron |
== Radio data analysis and results == On 24 March 2009, it was announced that the Einstein@Home project was beginning to analyze data received by the PALFA Consortium at the Arecibo Observatory in Puerto Rico. On 26 November 2009, a CUDA-optimized application for the Arecibo Binary Pulsar Search was first detailed on official Einstein@Home webpages. This application uses both a regular CPU and an NVIDIA GPU to perform analyses faster (in some cases up to 50% faster). On 12 August 2010, the Einstein@Home project announced the discovery of a new disrupted binary pulsar, PSR J2007+2722; it may be the fastest-spinning such pulsar discovered to date. The computers of Einstein@Home volunteers Chris and Helen Colvin and Daniel Gebhardt observed PSR 2007+2722 with the highest statistical significance. On 1 March 2011, the Einstein@Home project announced their second discovery: a binary pulsar system PSR J1952+2630. The computers of Einstein@Home volunteers from Russia and the UK observed PSR J1952+2630 with the highest statistical significance. By 15 May 2012 a new application for ATI/AMD graphic cards had been released. Using OpenCL, the new application was ten times faster than running on a typical CPU. On 22 July 2013, an Android application version of the radio pulsar search was announced. Like the CPU application, the Android application processes data from Arecibo Observatory. On 20 August 2013, the discovery of 24 pulsars in data from the Parks Multi-beam Pulsar Survey was published. The re-analysis of the data found these pulsars, which were missed by previous analyses and re-analyses of the data. Six of the discovered pulsars are in binary systems. The discovery of a double neutron star binary in PALFA data by the project was published on 4 November 2016. PSR J1913+1102 is in a 4.95 hour orbit with a neutron star partner. By measuring the relativistic periastron advance, the total mass of the system was determined to 2.88 solar masses, similar to the mass of the most massive double neutron star, B1913+16. Timing analysis of 13 radio pulsars discovered by Einstein@Home were published by the PALFA Consortium in August 2021. On 31 October 2023 the project announced the launch of a new Zooniverse project called "Pulsar Seekers". In this project, citizen scientists visually inspect and classify sets of diagnostic plots for pulsar candidates produced from the Einstein@Home analysis of observations from the large Arecibo telescope's PALFA pulsar survey. The goal is to identify new pulsars in these data. As of December 2023, the Einstein@Home project had discovered a total of 55 radio pulsars: 24 using Parkes Multibeam Survey data and 31 using Arecibo radio data (including two from the Arecibo Binary Radio Pulsar Search and 29 using data from the PALFA Mock spectrometer data from Arecibo Observatory).