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Ransom, S. M; Ray, P. S; Camilo, F; Roberts, M. S. E; Çelik, Ö; Wolff, M. T; Cheung, C. C; Kerr, M; Pennucci, T; DeCesar, M. E; Cognard, I; Lyne, A. G; Stappers, B. W; Freire, P. C. C; Grove, J. E; Abdo, A. A; Desvignes, G; Donato, D; Ferrara, E. C; Gehrels, N; Guillemot, L; Gwon, C; Harding, A. K; Johnston, S; Keith, M; Kramer, M; Michelson, P. F; Parent, D; Saz Parkinson, P. M; Romani, R. W; Smith, D. A; Theureau, G; Thompson, D. J; Weltevrede, P; Wood, K. S; Ziegler, M
Astrophysical journal. Letters, 01/2011, Letnik: 727, Številka: 1Journal Article
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 Delta *g-ray millisecond pulsars (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 Delta *g-ray pulsation searches. They seem to be relatively normal, nearby (<=2 kpc) MSPs. These observations, in combination with the Fermi detection of Delta *g-rays from other known radio MSPs, imply that most, if not all, radio MSPs are efficient Delta *g-ray producers. The Delta *g-ray spectra of the pulsars are power law in nature with exponential cutoffs at a few GeV, 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 ~1030-1031 erg s--1 are typical of the rare radio MSPs seen in X-rays.
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