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  Two Pulsar Discoveries from the Einstein@Home Distributed Computing Project

Deneva, J. S., Knispel, B., Allen, B., Cordes, J., Bogdanov, S., Brazier, A., et al. (2011). Two Pulsar Discoveries from the Einstein@Home Distributed Computing Project. Bulletin of the American Astronomical Society, 43.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-B3EC-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-B3ED-A
Genre: Conference Paper

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 Creators:
Deneva, Julia S., Author
Knispel, B.1, Author              
Allen, B.1, Author              
Cordes, J., Author
Bogdanov, S., Author
Brazier, A., Author
Bhat, R., Author
Camilo, F., Author
Chatterjee, S., Author
Crawford, F., Author
Desvignes, G., Author
Freire, P., Author
Hessels, J., Author
Jenet, F., Author
Kaspi, V., Author
Kramer, M., Author
Lazarus, P., Author
Lorimer, D., Author
van Leeuwen, J., Author
Lyne, A., Author
McLaughlin, M., AuthorNice, D., AuthorRansom, S., AuthorSiemens, X., AuthorStairs, I., AuthorStappers, B., AuthorStovall, K., Author more..
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

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 Abstract: We present two pulsars discovered by Einstein@Home, a distributed computing project that runs on volunteers' computers and searches for gravitational waves in LIGO data and binary pulsars in Arecibo PALFA data. J2007+27 is an isolated pulsar with a period of 24.49 ms. Its unusually large duty cycle and the presence of emission almost throughout the rotation period suggests that its magnetic and spin axes are nearly aligned. Limits on the period derivative, magnetic field, and age indicate that this is the fastest-spinning disrupted recycled pulsar known to date. J1952+26 has a period of 20.73 ms and is in a 7-hour binary. Assuming a pulsar mass of 1.4 Msun, the system's mass function indicates that the minimum companion mass is 0.95 Msun. The companion is likely a neutron star or a massive white dwarf, which makes the system an excellent candidate for Shapiro delay measurement and therefore an accurate estimate of the pulsar and companion masses.

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 Dates: 2011
 Publication Status: Published in print
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Title: AAS Meeting 217
Place of Event: Washington, Seattle
Start-/End Date: 2011-01-09 - 2011-01-13

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Title: Bulletin of the American Astronomical Society
Source Genre: Journal
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Pages: - Volume / Issue: 43 Sequence Number: - Start / End Page: - Identifier: -