Radio-continuum study of the nearby sculptor group galaxies. Part 3: NGC 7793 at λ=12.2, 6 and 3 cm

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

doi:10.1007/s10509-014-2051-3

Radio-continuum study of the nearby sculptor group galaxies. Part 3: NGC 7793 at λ=12.2, 6 and 3 cm

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

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

7 Citations (Scopus)

Abstract

We re-examine a series of archived centimetre radio-continuum observations (λ = 16, 6 and 3 cm) focusing on NGC7793 using the Australia Telescope Compact Array. These new images are both very sensitive (σ = 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 (α) between −0.3 and −0.7.

Original language	English
Pages (from-to)	603-611
Number of pages	9
Journal	Astrophysics and Space Science
Volume	353
Issue number	2
DOIs	https://doi.org/10.1007/s10509-014-2051-3
Publication status	Published - 2014

Keywords

Galaxies
radio continuum

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title = "Radio-continuum study of the nearby sculptor group galaxies. Part 3: NGC 7793 at λ=12.2, 6 and 3 cm",

abstract = "We re-examine a series of archived centimetre radio-continuum observations (λ = 16, 6 and 3 cm) focusing on NGC7793 using the Australia Telescope Compact Array. These new images are both very sensitive (σ = 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 (α) between −0.3 and −0.7.",

keywords = "Galaxies, radio continuum",

author = "Galvin, {Timothy J.} and Filipovic, {Miroslav D.} and Tothill, {Nicholas F. H.} and Crawford, {Evan J.} and O'Brien, {Andrew N.} and Nicholas Seymour and Pannuti, {Thomas G.} and Kosakowski, {Alekzander R.} and Biswas Sharma",

year = "2014",

doi = "10.1007/s10509-014-2051-3",

language = "English",

volume = "353",

pages = "603--611",

journal = "Astrophysics and Space Science",

issn = "0004-640X",

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number = "2",

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TY - JOUR

T1 - Radio-continuum study of the nearby sculptor group galaxies. Part 3: NGC 7793 at λ=12.2, 6 and 3 cm

AU - Galvin, Timothy J.

AU - Filipovic, Miroslav D.

AU - Tothill, Nicholas F. H.

AU - Crawford, Evan J.

AU - O'Brien, Andrew N.

AU - Seymour, Nicholas

AU - Pannuti, Thomas G.

AU - Kosakowski, Alekzander R.

AU - Sharma, Biswas

PY - 2014

Y1 - 2014

N2 - We re-examine a series of archived centimetre radio-continuum observations (λ = 16, 6 and 3 cm) focusing on NGC7793 using the Australia Telescope Compact Array. These new images are both very sensitive (σ = 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 (α) between −0.3 and −0.7.

AB - We re-examine a series of archived centimetre radio-continuum observations (λ = 16, 6 and 3 cm) focusing on NGC7793 using the Australia Telescope Compact Array. These new images are both very sensitive (σ = 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 (α) between −0.3 and −0.7.

KW - Galaxies

KW - radio continuum

UR - http://handle.uws.edu.au:8081/1959.7/uws:28878

U2 - 10.1007/s10509-014-2051-3

DO - 10.1007/s10509-014-2051-3

M3 - Article

SN - 0004-640X

VL - 353

SP - 603

EP - 611

JO - Astrophysics and Space Science

JF - Astrophysics and Space Science

IS - 2

ER -

Radio-continuum study of the nearby sculptor group galaxies. Part 3: NGC 7793 at λ=12.2, 6 and 3 cm

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