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Record Details

Record 12 of 11561
Three Millisecond Pulsars in Fermi LAT Unassociated Bright Sources
External Online Source: doi:10.1088/2041-8205/727/1/L16
Author and Affiliation:
Ransom, S. M.(National Radio Astronomy Observatory, Charlottesville, VA, United States)
Ray, P. S.(Naval Research Lab., Washington, DC, United States)
Camilo, F.(Columbia Univ., New York, NY, United States)
Roberts, M. S. E.(Eureka Scientific, Inc., Oakland, CA, United States)
Celik, O.(Maryland Univ., College Park, MD, United States)
Wolff, M. T.(Naval Research Lab., Washington, DC, United States)
Cheung, C. C.(National Academy of Sciences - National Research Council, Washington, DC, United States)
Kerr, M.(Stanford Univ., Stanford, CA, United States)
Pennucci, T.(Virginia Univ., Charlottesville, VA, United States)
DeCesar, M. E.(Maryland Univ., College Park, MD, United States) Show more authors
Abstract: We searched for radio pulsars in 25 of the non-variable, unassociated sources in the Fermi LAT Bright Source List with the Green Bank Telescope at 820 MHz. We report the discovery of three radio and gamma-ray millisecond pulsar (MSPs) from a high Galactic latitude subset of these sources. All of the pulsars are in binary systems, which would have made them virtually impossible to detect in blind gamma-ray pulsation searches. They seem to be relatively normal, nearby (<= 2 kpc) MSPs. These observations, in combination with the Fermi detection of gamma-rays from other known radio MSPs, imply that most, if not all, radio MSPs are efficient gamma-ray producers. The gamma-ray spectra of the pulsars are power law in nature with exponential cutoffs at a few Ge V, as has been found with most other pulsars. The MSPs have all been detected as X-ray point sources. Their soft X-ray luminosities of approx 10(exp 30) - 10(exp 31) erg/s are typical of the rare radio MSPs seen in X-rays.
Publication Date: Dec 23, 2010
Document ID:
20120017012
(Acquired Dec 19, 2012)
Subject Category: ASTRONOMY
Report/Patent Number: GSFC.JA.6615.2012
Document Type: Journal Article
Publication Information: The Astrophysical Journal Letters; Volume 727
Publisher Information: American Astronomical Society, Washington, DC, United States
Contract/Grant/Task Num: NNG09EE57I
Financial Sponsor: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Organization Source: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Description: 6p; In English; Original contains color illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: GAMMA RAYS; PULSARS; X RAY SOURCES; RADIO ASTRONOMY; GAMMA RAY ASTRONOMY; GAMMA RAY SPECTRA; RADIO TELESCOPES; FERMI GAMMA-RAY SPACE TELESCOPE
Availability Source: Other Sources
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Last Modified: December 19, 2012
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