NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-06-19 T08:55:16 PDT
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For refcode 2009MNRAS.397.2030H:
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NED Abstract

Copyright by Royal Astronomical Society. 2009MNRAS.397.2030H e-VLBI observations of GHz-peaked spectrum radio sources in nearby galaxies from the AT20G survey Hancock, Paul J.; Tingay, Steven J.; Sadler, Elaine M.; Phillips, Chris; Deller, Adam T. Abstract. Gigahertz-peaked spectrum (GPS) radio sources are thought to be young objects which later evolve into Fanaro-Riley type I (FR I) and FR II radio galaxies. We have used the Australia Telescope 20GHz (AT20G) survey catalogue to select a uniform sample of GPS sources with spectral peaks above 5GHz, which should represent the youngest members of this class. In this paper, we present e-VLBI observations of 10 such objects which are associated with nearby (z < 0.15) galaxies and so represent a new population of local, low-power GPS sources. Our e-VLBI observations were carried out at 4.8GHz with the Australia Telescope Long Baseline Array (LBA) using a real-time software correlator. All 10 sources were detected, and were unresolved on scales of ~100mas, implying that they are typically less than 100pc in linear size. Key words: instrumentation: interferometers, galaxies: active, galaxies: evolution, radio continuum: galaxies
Retrieve 12 NED objects in this reference.
Please click here for ADS abstract

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