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Interstellar Scintillation as a Cosmological Probe: Prospects and Challenges†

Published online by Cambridge University Press:  20 April 2012

J. Y. Koay ,
J.-P. Macquart ,
B. J. Rickett ,
H. E. Bignall ,
D. L. Jauncey ,
J. E. J. Lovell ,
C. Reynolds ,
T. Pursimo ,
L. Kedziora-Chudczer  and
R. Ojha
J. Y. Koay*
Affiliation:
International Centre for Radio Astronomy Research, Curtin University, Australia
J.-P. Macquart
Affiliation:
International Centre for Radio Astronomy Research, Curtin University, Australia
B. J. Rickett
Affiliation:
Department of Electrical & Computer Engineering, University of California, San Diego, USA
H. E. Bignall
Affiliation:
International Centre for Radio Astronomy Research, Curtin University, Australia
D. L. Jauncey
Affiliation:
CSIRO Astronomy & Space Science, Australia Telescope National Facility, Australia
J. E. J. Lovell
Affiliation:
School of Mathematics & Physics, University of Tasmania, Australia
C. Reynolds
Affiliation:
International Centre for Radio Astronomy Research, Curtin University, Australia
T. Pursimo
Affiliation:
Nordic Optical Telescope, E-38700 Santa Cruz de La Palma, Spain
L. Kedziora-Chudczer
Affiliation:
School of Physics & Astrophysics, University of New South Wales, Australia
R. Ojha
Affiliation:
Institute for Astrophysics & Computational Sciences, Catholic University of America, USA
*
*email: [email protected]
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Abstract

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The discovery that interstellar scintillation (ISS) is suppressed for compact radio sources at z ≳ 2 has enabled ISS surveys to be used as cosmological probes. We discuss briefly the potential and challenges involved in such an undertaking, based on a dual-frequency survey of ISS carried out to determine the origin of this redshift dependence.

Keywords

intergalactic mediumgalaxies: activeradio continuum: ISMscattering
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S285: New Horizons in Time-Domain Astronomy , September 2011 , pp. 347 - 348
Copyright
Copyright © International Astronomical Union 2012

Footnotes

†

Presented on behalf of J.Y. Koay by J.-P. Macquart.

References

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