Radio Detection of the FERMI-LAT Blind Search Millisecond Pulsar J1311–3430
Abstract
In this article, 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 <10% of ~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, Nançay, 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–3 provides a distance estimate of 1.4 kpc for the system, yielding a gamma-ray efficiency of 30%, typical of LAT-detected MSPs. Lastly, 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.
- Authors:
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE
- Contributing Org.:
- Fermi-LAT Collaboration
- OSTI Identifier:
- 1356603
- Grant/Contract Number:
- AC02-76SF00515
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- The Astrophysical Journal. Letters
- Additional Journal Information:
- Journal Volume: 763; Journal Issue: 1; Journal ID: ISSN 2041-8205
- Publisher:
- Institute of Physics (IOP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; pulsars: individual (PSR J1311−3430)
Citation Formats
Ray, P. S., Ransom, S. M., Cheung, C. C., Giroletti, M., Cognard, I., Camilo, F., Bhattacharyya, B., Roy, J., Romani, R. W., Ferrara, E. C., Guillemot, L., Johnston, S., Keith, M., Kerr, M., Kramer, M., Pletsch, H. J., Saz Parkinson, P. M., and Wood, K. S. Radio Detection of the FERMI-LAT Blind Search Millisecond Pulsar J1311–3430. United States: N. p., 2013.
Web. doi:10.1088/2041-8205/763/1/L13.
Ray, P. S., Ransom, S. M., Cheung, C. C., Giroletti, M., Cognard, I., Camilo, F., Bhattacharyya, B., Roy, J., Romani, R. W., Ferrara, E. C., Guillemot, L., Johnston, S., Keith, M., Kerr, M., Kramer, M., Pletsch, H. J., Saz Parkinson, P. M., & Wood, K. S. Radio Detection of the FERMI-LAT Blind Search Millisecond Pulsar J1311–3430. United States. https://doi.org/10.1088/2041-8205/763/1/L13
Ray, P. S., Ransom, S. M., Cheung, C. C., Giroletti, M., Cognard, I., Camilo, F., Bhattacharyya, B., Roy, J., Romani, R. W., Ferrara, E. C., Guillemot, L., Johnston, S., Keith, M., Kerr, M., Kramer, M., Pletsch, H. J., Saz Parkinson, P. M., and Wood, K. S. 2013.
"Radio Detection of the FERMI-LAT Blind Search Millisecond Pulsar J1311–3430". United States. https://doi.org/10.1088/2041-8205/763/1/L13. https://www.osti.gov/servlets/purl/1356603.
@article{osti_1356603,
title = {Radio Detection of the FERMI-LAT Blind Search Millisecond Pulsar J1311–3430},
author = {Ray, P. S. and Ransom, S. M. and Cheung, C. C. and Giroletti, M. and Cognard, I. and Camilo, F. and Bhattacharyya, B. and Roy, J. and Romani, R. W. and Ferrara, E. C. and Guillemot, L. and Johnston, S. and Keith, M. and Kerr, M. and Kramer, M. and Pletsch, H. J. and Saz Parkinson, P. M. and Wood, K. S.},
abstractNote = {In this article, 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 <10% of ~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, Nançay, 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–3 provides a distance estimate of 1.4 kpc for the system, yielding a gamma-ray efficiency of 30%, typical of LAT-detected MSPs. Lastly, 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.},
doi = {10.1088/2041-8205/763/1/L13},
url = {https://www.osti.gov/biblio/1356603},
journal = {The Astrophysical Journal. Letters},
issn = {2041-8205},
number = 1,
volume = 763,
place = {United States},
year = {Wed Jan 02 00:00:00 EST 2013},
month = {Wed Jan 02 00:00:00 EST 2013}
}
Web of Science
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