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Radio detection of the fermi-lat blind search millisecond pulsar j1311-3430
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Ferrara, E. C. Romani, R. W. Camilo, F. Pletsch, H. J. Keith, M. Ransom, S. M. Cheung, C. C. Parkinson, P. M. Saz Cognard, I. Guillemot, L. Roy, J. Ray, P. S. Bhattacharyya, B. Johnston, S. Kramer, M. Giroletti, M. Kerr, M. |
| Copyright Year | 2013 |
| Description | We report the detection of radio emission from PSR J1311.3430, the first millisecond pulsar (MSP) discovered in a blind search of Fermi Large Area Telescope (LAT) gamma-ray data. We detected radio pulsations at 2 GHz, visible for less than 10% of approximately 4.5 hr of observations using the Green Bank Telescope (GBT). Observations at 5 GHz with the GBT and at several lower frequencies with Parkes, Nan cay, and the Giant Metrewave Radio Telescope resulted in non-detections. We also report the faint detection of a steep spectrum continuum radio source (0.1 mJy at 5 GHz) in interferometric imaging observations with the Jansky Very Large Array. These detections demonstrate that PSR J1311.3430 is not radio quiet and provide additional evidence that radio-quiet MSPs are rare. The radio dispersion measure of 37.8 pc cm(exp -3) provides a distance estimate of 1.4 kpc for the system, yielding a gamma-ray efficiency of 30%, typical of LAT-detected MSPs. We see apparent excess delay in the radio pulses as the pulsar appears from eclipse and we speculate on possible mechanisms for the non-detections of the pulse at other orbital phases and observing frequencies. |
| File Size | 199032 |
| Page Count | 6 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20130013677 |
| Archival Resource Key | ark:/13960/t2t48pp89 |
| Language | English |
| Publisher Date | 2013-01-20 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Gamma Ray Spectra Radio Emission Radio Astronomy Pulsars Very Large Array Vla Radiant Flux Density Fermi Gamma-ray Space Telescope Gamma Ray Sources Astronomy Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
