Radio-continuum study of the nearby Sculptor Group galaxies. Part 1 : NGC 300 at λ=20 cm

Timothy J. Galvin; Miroslav D. Filipovic; Evan J. Crawford; Graeme Wong; Jeff L. Payne; Ain De Horta; Graeme L. White; Nick Tothill; Danica Draskovic; Thomas G. Pannuti; Caleb K. Grimes; Benjamin J. Cahall; William C. Millar; Seppo Laine

doi:10.1007/s10509-012-1044-3

Radio-continuum study of the nearby Sculptor Group galaxies. Part 1 : NGC 300 at λ=20 cm

Timothy J. Galvin, Miroslav D. Filipovic, Evan J. Crawford, Graeme Wong, Jeff L. Payne, Ain De Horta, Graeme L. White, Nick Tothill, Danica Draskovic, Thomas G. Pannuti, Caleb K. Grimes, Benjamin J. Cahall, William C. Millar, Seppo Laine

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

4 Citations (Scopus)

Abstract

A series of new radio-continuum (λ=20 cm) mosaic images focused on the NGC 300 galactic system were produced using archived observational data from the VLA and/or ATCA. These new images are both very sensitive (rms =60 μJy) and feature high angular resolution (<10 ″). The most prominent new feature is the galaxy’s extended radio-continuum emission, which does not match its optical appearance. Using these newly created images a number of previously unidentified discrete sources have been discovered. Furthermore, we demonstrate that a joint deconvolution approach to imaging this complete data-set is inferior when compared to an immerge approach.

Original language	English
Pages (from-to)	133-142
Number of pages	10
Journal	Astrophysics and Space Science
Volume	340
Issue number	1
DOIs	https://doi.org/10.1007/s10509-012-1044-3
Publication status	Published - 2012

Keywords

NGC 300
Sculpture Group
galaxies
radio continuum

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10.1007/s10509-012-1044-3

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Galvin, T. J., Filipovic, M. D., Crawford, E. J., Wong, G., Payne, J. L., De Horta, A., White, G. L., Tothill, N., Draskovic, D., Pannuti, T. G., Grimes, C. K., Cahall, B. J., Millar, W. C., & Laine, S. (2012). Radio-continuum study of the nearby Sculptor Group galaxies. Part 1 : NGC 300 at λ=20 cm. Astrophysics and Space Science, 340(1), 133-142. https://doi.org/10.1007/s10509-012-1044-3

@article{fc0ad9c73e4b406c89e2a4887b4b7ca1,

title = "Radio-continuum study of the nearby Sculptor Group galaxies. Part 1 : NGC 300 at λ=20 cm",

abstract = "A series of new radio-continuum (λ=20 cm) mosaic images focused on the NGC 300 galactic system were produced using archived observational data from the VLA and/or ATCA. These new images are both very sensitive (rms =60 μJy) and feature high angular resolution (<10 ″). The most prominent new feature is the galaxy{\textquoteright}s extended radio-continuum emission, which does not match its optical appearance. Using these newly created images a number of previously unidentified discrete sources have been discovered. Furthermore, we demonstrate that a joint deconvolution approach to imaging this complete data-set is inferior when compared to an immerge approach.",

keywords = "NGC 300, Sculpture Group, galaxies, radio continuum",

author = "Galvin, {Timothy J.} and Filipovic, {Miroslav D.} and Crawford, {Evan J.} and Graeme Wong and Payne, {Jeff L.} and {De Horta}, Ain and White, {Graeme L.} and Nick Tothill and Danica Draskovic and Pannuti, {Thomas G.} and Grimes, {Caleb K.} and Cahall, {Benjamin J.} and Millar, {William C.} and Seppo Laine",

year = "2012",

doi = "10.1007/s10509-012-1044-3",

language = "English",

volume = "340",

pages = "133--142",

journal = "Astrophysics and Space Science",

issn = "0004-640X",

publisher = "Springer",

number = "1",

}

Galvin, TJ, Filipovic, MD , Crawford, EJ, Wong, G, Payne, JL, De Horta, A, White, GL, Tothill, N, Draskovic, D, Pannuti, TG, Grimes, CK, Cahall, BJ, Millar, WC & Laine, S 2012, 'Radio-continuum study of the nearby Sculptor Group galaxies. Part 1 : NGC 300 at λ=20 cm', Astrophysics and Space Science, vol. 340, no. 1, pp. 133-142. https://doi.org/10.1007/s10509-012-1044-3

TY - JOUR

T1 - Radio-continuum study of the nearby Sculptor Group galaxies. Part 1 : NGC 300 at λ=20 cm

AU - Galvin, Timothy J.

AU - Filipovic, Miroslav D.

AU - Crawford, Evan J.

AU - Wong, Graeme

AU - Payne, Jeff L.

AU - De Horta, Ain

AU - White, Graeme L.

AU - Tothill, Nick

AU - Draskovic, Danica

AU - Pannuti, Thomas G.

AU - Grimes, Caleb K.

AU - Cahall, Benjamin J.

AU - Millar, William C.

AU - Laine, Seppo

PY - 2012

Y1 - 2012

N2 - A series of new radio-continuum (λ=20 cm) mosaic images focused on the NGC 300 galactic system were produced using archived observational data from the VLA and/or ATCA. These new images are both very sensitive (rms =60 μJy) and feature high angular resolution (<10 ″). The most prominent new feature is the galaxy’s extended radio-continuum emission, which does not match its optical appearance. Using these newly created images a number of previously unidentified discrete sources have been discovered. Furthermore, we demonstrate that a joint deconvolution approach to imaging this complete data-set is inferior when compared to an immerge approach.

AB - A series of new radio-continuum (λ=20 cm) mosaic images focused on the NGC 300 galactic system were produced using archived observational data from the VLA and/or ATCA. These new images are both very sensitive (rms =60 μJy) and feature high angular resolution (<10 ″). The most prominent new feature is the galaxy’s extended radio-continuum emission, which does not match its optical appearance. Using these newly created images a number of previously unidentified discrete sources have been discovered. Furthermore, we demonstrate that a joint deconvolution approach to imaging this complete data-set is inferior when compared to an immerge approach.

KW - NGC 300

KW - Sculpture Group

KW - galaxies

KW - radio continuum

UR - http://handle.uws.edu.au:8081/1959.7/516155

U2 - 10.1007/s10509-012-1044-3

DO - 10.1007/s10509-012-1044-3

M3 - Article

SN - 0004-640X

VL - 340

SP - 133

EP - 142

JO - Astrophysics and Space Science

JF - Astrophysics and Space Science

IS - 1

ER -

Radio-continuum study of the nearby Sculptor Group galaxies. Part 1 : NGC 300 at λ=20 cm

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