NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Three Millisecond Pulsars in Fermi LAT Unassociated Bright SourcesWe 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.
Document ID
20120017012
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
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)
Cognard, I.
(Centre National de la Recherche Scientifique Nancy, France)
Lyne, A. G.
(Manchester Univ. United Kingdom)
Stappers, B. W.
(Manchester Univ. United Kingdom)
Freire, P. C. C.
(Max-Planck-Inst. fuer Radioastronomie Bonn, Germany)
Grove, J. E.
(Naval Research Lab. Washington, DC, United States)
Abdo, A. A.
(National Academy of Sciences - National Research Council Washington, DC, United States)
Desvignes, G.
(California Univ. Berkeley, CA, United States)
Donato, D.
(Maryland Univ. College Park, MD, United States)
Ferrara, E. C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Gehrels, N.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Guillemot, L.
(Max-Planck-Inst. fuer Radioastronomie Bonn, Germany)
Gwon, C.
(Naval Research Lab. Washington, DC, United States)
Johnston, S.
(Australia Telescope National Facility Epping, Australia)
Harding, A. K.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Thompson, D. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 25, 2013
Publication Date
December 23, 2010
Publication Information
Publication: The Astrophysical Journal Letters
Publisher: American Astronomical Society
Volume: 727
Subject Category
Astronomy
Report/Patent Number
GSFC.JA.6615.2012
Funding Number(s)
CONTRACT_GRANT: NNG09EE57I
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available