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arXiv · 1407.2653

Radio-Continuum Study of the Nearby Sculptor Group Galaxies. Part 3: NGC 7793 at lambda=12.2, 6 and 3 cm

Timothy J. Galvin·Miroslav D. Filipović·Nicholas F. H. Tothill·Evan J. Crawford·Andrew N. O'Brien·Nicholas Seymour·Thomas G. Pannuti·Alekzander R. Kosakowski·Biswas Sharma
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Abstract

We re-examine a series of archived centimetre radio-continuum observations (lambda=16, 6 and 3 cm) focusing on NGC7793 using the Australia Telescope Compact Array. These new images are both very sensitive (rms=0.011 mJy/beam) and feature reasonably high angular resolution (down to < 3"). Using these images, a total of 76 discrete radio sources are identified, of which 57 have been classified. We also studied the radio component of the micro-quasar NGC7793-S26 which shows two distinct regions of somewhat steep spectral index between -0.3 and -0.7.

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Timothy J. Galvin, Miroslav D. Filipović, Nicholas F. H. Tothill, Evan J. Crawford, Andrew N. O'Brien, Nicholas Seymour, Thomas G. Pannuti, Alekzander R. Kosakowski, Biswas Sharma. 2014-07-09. Radio-Continuum Study of the Nearby Sculptor Group Galaxies. Part 3: NGC 7793 at lambda=12.2, 6 and 3 cm. https://doi.org/10.1007/s10509-014-2051-3

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