Radio-Excess IRAS Galaxies: Low Power CSS/GPS Sources?

Catherine L. Drake; Peter J. Mcgregor; Geoffrey V. Bicknell; Michael A. Dopita

doi:10.1071/AS02057

Radio-Excess IRAS Galaxies: Low Power CSS/GPS Sources?

Catherine L. Drake, Peter J. Mcgregor, Geoffrey V. Bicknell, Michael A. Dopita

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Amongst our sample of radio-excess IRAS galaxies, we have identified compact steep spectrum radio sources that fall into the classes of CSS or GPS sources, but have not previously been identified as such. The sample includes objects that have radio powers as low as ~10²² WHz^-1. We suggest that these are low-power analogues of CSS and GPS sources, with weaker radio jets. These may be precursors to FRI radio galaxies or may ‘fade’ into radio-quiet galaxies.

Original language	English
Pages (from-to)	57-61
Number of pages	5
Journal	Publications of the Astronomical Society of Australia
Volume	20
Issue number	1
DOIs	https://doi.org/10.1071/AS02057
Publication status	Published - 2003

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title = "Radio-Excess IRAS Galaxies: Low Power CSS/GPS Sources?",

abstract = "Amongst our sample of radio-excess IRAS galaxies, we have identified compact steep spectrum radio sources that fall into the classes of CSS or GPS sources, but have not previously been identified as such. The sample includes objects that have radio powers as low as ~1022 WHz-1. We suggest that these are low-power analogues of CSS and GPS sources, with weaker radio jets. These may be precursors to FRI radio galaxies or may {\textquoteleft}fade{\textquoteright} into radio-quiet galaxies.",

keywords = "galaxies active, infrared: galaxies, radio continuum: galaxies",

author = "Drake, {Catherine L.} and Mcgregor, {Peter J.} and Bicknell, {Geoffrey V.} and Dopita, {Michael A.}",

year = "2003",

doi = "10.1071/AS02057",

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T2 - Low Power CSS/GPS Sources?

AU - Drake, Catherine L.

AU - Mcgregor, Peter J.

AU - Bicknell, Geoffrey V.

AU - Dopita, Michael A.

PY - 2003

Y1 - 2003

N2 - Amongst our sample of radio-excess IRAS galaxies, we have identified compact steep spectrum radio sources that fall into the classes of CSS or GPS sources, but have not previously been identified as such. The sample includes objects that have radio powers as low as ~1022 WHz-1. We suggest that these are low-power analogues of CSS and GPS sources, with weaker radio jets. These may be precursors to FRI radio galaxies or may ‘fade’ into radio-quiet galaxies.

AB - Amongst our sample of radio-excess IRAS galaxies, we have identified compact steep spectrum radio sources that fall into the classes of CSS or GPS sources, but have not previously been identified as such. The sample includes objects that have radio powers as low as ~1022 WHz-1. We suggest that these are low-power analogues of CSS and GPS sources, with weaker radio jets. These may be precursors to FRI radio galaxies or may ‘fade’ into radio-quiet galaxies.

KW - galaxies active

KW - infrared: galaxies

KW - radio continuum: galaxies

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U2 - 10.1071/AS02057

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JO - Publications of the Astronomical Society of Australia

JF - Publications of the Astronomical Society of Australia

IS - 1

ER -

Radio-Excess IRAS Galaxies: Low Power CSS/GPS Sources?

Abstract

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