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17 April 2024 |
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Radio Observations of the Hubble Deep Field South - a New Class of Radio-Luminous Galaxies? | | R.P. Norris
; A. Hopkins
; R.J. Sault
; R.D. Ekers
; J. Ekers
; F. Badia
; J. Higdon
; M.H. Wieringa
; B.J. Boyle
; R.E. Williams
; | | Date: |
25 Oct 1999 | | Subject: | astro-ph | | Abstract: | We present the first results from a series of radio observations of the Hubble Deep Field South and its flanking fields. Here we consider only those sources greater than 100 microJy at 20 cm, in an 8-arcmin square field that covers the WFPC field, the STIS and NICMOS field, and most of the HST flanking fields and complementary ground-based observations. We have detected 13 such radio sources, two of which are in the WFPC2 field itself. One of the sources in the WFPC field (source c) corresponds to a very faint galaxy, and several others outside the WFPC field can not be identified with sources in the other optical/IR wavebands. The radio and optical luminosities of these galaxies are inconsistent with either conventional starburst galaxies or with radio-loud galaxies. Instead, it appears that it belongs to a population of galaxies which are rare in the local Universe, possibly consisting of a radio-luminous active nucleus embedded in a very dusty starburst galaxy, and which are characterised by a very high radio/optical luminosity ratio. | | Source: | arXiv, astro-ph/9910437 | | Services: | Forum | Review | PDF | Favorites | |
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