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First Results of VSOP Imaging of Strong GPS Sources

Citation

Lovell, JEJ and King, EA and Jauncey, DL and Tzioumis, AK and Reynolds, JE and McCulloch, PM and Costa, ME and Preston, RA and Tingay, SJ and Murphy, DW and Meier, DL and Nicolson, GD and Dewdney, PE and Cannon, WH, First Results of VSOP Imaging of Strong GPS Sources, Advances in Space Research, 26, (4) pp. 715-718. ISSN 0273-1177 (2000) [Refereed Article]

DOI: doi:10.1016/S0273-1177(99)01198-9

Abstract

We are using the VSOP spacecraft, HALCA, together with ground-based telescopes, to image six strong GPS sources with compact double structure. Space-ground baselines are needed to achieve the resolution to accurately measure component sizes at the frequency of the spectral peak, an essential requirement in distinguishing between free-free and synchrotron self absorption emission mechanisms. Many of the components of these sources are only just beginning to show signs of any internal structure on the longest Earth baselines and space VLBI is the only technique that permits investigation of their most compact structure at the frequency of the spectral peak. © 2000 COSPAR. Published by Elsevier Science Ltd.

Item Details

Item Type:Refereed Article
Research Division:Physical Sciences
Research Group:Astronomical and Space Sciences
Research Field:Galactic Astronomy
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Physical Sciences
Author:Lovell, JEJ (Dr Jim Lovell)
Author:McCulloch, PM (Professor Peter McCulloch)
Author:Costa, ME (Dr Marco Costa)
ID Code:20948
Year Published:2000
Web of Science® Times Cited:1
Deposited By:Physics
Deposited On:2000-08-01
Last Modified:2007-09-12
Downloads:0

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