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- W1777269610 endingPage "172" @default.
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- W1777269610 abstract "The lack of detected pulsars at the Galactic Center (GC) region is a long-standing mystery. We argue that the high stellar density in the central parsec around the GC is likely to result in a pulsar population dominated by millisecond pulsars (MSPs), similar to the situation in globular cluster environments. Earlier GC pulsar searches have been largely insensitive to such an MSP population, accounting for the lack of pulsar detections. We estimate the best search frequency for such an MSP population with present and upcoming broad-band radio telescopes for two possible scattering scenarios, the weak-scattering case suggested by the recent detection of a magnetar close to the GC, and the strong-scattering case, with the scattering screen located close to the GC. The optimal search frequencies are ≈8 GHz (weak-scattering) and ≈25 GHz (strong-scattering), for pulsars with periods 1–20 ms, assuming that GC pulsars have a luminosity distribution similar to that those in the rest of the Milky Way. We find that 10–30 hr integrations with the Very Large Array and the Green Bank Telescope would be sufficient to detect MSPs at the GC distance in the weak-scattering case. However, if the strong-scattering case is indeed applicable to the GC, observations with the full Square Kilometre Array would be needed to detect the putative MSP population." @default.
- W1777269610 created "2016-06-24" @default.
- W1777269610 creator A5049491288 @default.
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- W1777269610 date "2015-05-29" @default.
- W1777269610 modified "2023-09-24" @default.
- W1777269610 title "ON DETECTING MILLISECOND PULSARS AT THE GALACTIC CENTER" @default.
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- W1777269610 doi "https://doi.org/10.1088/0004-637x/805/2/172" @default.
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