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  Radio Detection of the Fermi LAT Blind Search Millisecond Pulsar J1311-3430

Ray, P. S., Ransom, S. M., Cheung, C. C., Giroletti, M., Cognard, I., Camilo, F., et al. (2013). Radio Detection of the Fermi LAT Blind Search Millisecond Pulsar J1311-3430. Astrophysical Journal, 763: L13. doi:10.1088/2041-8205/763/1/L13.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000E-EA17-E Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0015-199D-4
Genre: Journal Article

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 Creators:
Ray, P. S., Author
Ransom, S. M., Author
Cheung, C. C., Author
Giroletti, M., Author
Cognard, I., Author
Camilo, F., Author
Bhattacharyya, B., Author
Roy, J., Author
Romani, R. W., Author
Ferrara, E. C., Author
Guillemot, L., Author
Johnston, S., Author
Keith, M., Author
Kerr, M., Author
Kramer, M., Author
Pletsch, H.1, Author              
Parkinson, P. M. Saz, Author
Wood, K. S., Author
Affiliations:
1Observational Relativity and Cosmology, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, ou_24011              

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Free keywords: Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE, Astrophysics, Galaxy Astrophysics, astro-ph.GA
 Abstract: We report the detection of radio emission from PSR J1311-3430, the first millisecond pulsar discovered in a blind search of Fermi Large Area Telescope (LAT) gamma-ray data. We detected radio pulsations at 2 GHz, visible for <10% of ~4.5-hrs of observations using the Green Bank Telescope (GBT). Observations at 5 GHz with the GBT and at several lower frequencies with Parkes, Nancay, 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 provides additional evidence that the radio beaming fraction of millisecond pulsars is very large. The radio detection yields 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 pulsar 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.

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 Dates: 2012-10-242012-12-182013
 Publication Status: Published in print
 Pages: 6 pages, 4 figures. ApJ Letters, in press
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 Identifiers: arXiv: 1210.6676
DOI: 10.1088/2041-8205/763/1/L13
URI: http://arxiv.org/abs/1210.6676
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Title: Astrophysical Journal
Source Genre: Journal
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Pages: - Volume / Issue: 763 Sequence Number: L13 Start / End Page: - Identifier: -