Idle computers are the astronomers' playground: Three citizen scientists - a German and an American couple - have discovered a new radio pulsar hidden in data gathered by the Arecibo Observatory. This is the first deep-space discovery by Einstein@Home, which uses donated time from the home and office computers of 250,000 volunteers from 192 different countries. (Science Express, Aug. 12, 2010.)
The citizens credited with the discovery are Chris and Helen Colvin, of Ames, Iowa and Daniel Gebhardt, of Universität Mainz, Musikinformatik, Germany. Their computers, along with 500,000 others from around the world, analyze data for Einstein@Home (on average, donors contribute about two computers each).
Learn more in the press releases and additional information provided below.
|Press Release (English)||Science Express Publication||Background Information (English)|
|Press Release (German)||Publication on arXiv||Background Information (German)|
|Press Release (French)||Einstein@Home fact sheet|
|Press Release (Spanish)||BOINC fact sheet|
|Press Release (Italian)|
Artist's impression of PSR J2007+2722: view from Earth. In the second half of the animation, the rotation (white) and magnetic (yellow) axes and the line of sight (blue dot) are visible. The observed pulse profile is shown below the animation. The radio emission cone shows the beam intensity (yellow ring) explaining the pulse profile.
Artist's impression of PSR J2007+2722, view from the side. In the second half of the animation, the rotation (white) and magnetic (yellow) axes and the line of sight (blue arrow) are visible. The observed pulse profile is shown below the animation. The radio emission cone shows the beam intensity (yellow ring) explaining the pulse profile.
The pulsar's radio signal waveform when interpreted as an audio signal.
Aerial View of Arecibo Observatory, Arecibo, P.R. The facility is owned by the National Science Foundation and managed by Cornell University.
Einstein@Home discovery plot. (Left) significance as a function of DM and spin frequency (all E@H results for the discovery beam). (Right) the pulse profile at 1.5 GHz (GBT). The bar illustrates the extent of the pulse.
Position of PSR J2007+2722 (red circle) in the constellation of Vulpecula in the evening sky in August; simulated view of the sky with the naked eye.
Position of PSR J2007+2722 (red circle) in the constellation of Vulpecula in the evening sky in August; constellations art overlaid for illustrative purposes.
Close-up of the constellation Vulpecula with the position of PSR J2007+2722 (red circle); simulated view with binoculars.
The Einstein@Home radio pulsar search screensaver.
Prof. Bruce Allen and graduate student Benjamin Knispel with discovery plot.
|Einstein@Home Homepage||Max Planck Institute for Gravitational Physics||Arecibo Observatory|
|E@H Arecibo Radio Pulsar Search||PALFA Consortium||LIGO|
|E@H Radio Pulsar Search Re-Detections||Cornell Center for Advanced Computing||Virgo|
|BOINC||University of Wisconsin - Milwaukee||GEO600|
Prof. Dr. Bruce Allen, Director
Max Planck Institute for Gravitational Physics (Albert Einstein Institute) and
Institute for Gravitational Physics at Leibniz Universität Hannover
30167 Hannover Germany
Prof. Bruce Allen
University of Wisconsin - Milwaukee
1900 East Kenwood Blvd.
Milwaukee WI 53211 USA
Prof. Jim Cordes
Department of Astronomy
Ithaca, NY 14853 USA
Dr. David Anderson
U.C. Berkeley Space Sciences Laboratory
7 Gauss Way
Berkeley, CA 94720
Max Planck Institute for Gravitational Physics
(Albert Einstein Institute)
Milde Marketing Science Communication
Arecibo Observatory and
University of Wisconsin-Milwaukee
University of California, Berkeley
American Physical Society
National Science Foundation
Last Updated: Aug 12, 2010