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Browsing by Author "Westcott, Jonathan"
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A High-Resolution Radio Continuum Study Of The Dwarf Irregular Galaxy IC 10
Westcott, Jonathan; Brinks, Elias; Beswick, R. J.; Heesen, V.; Argo, M. K.; Baldi, R. D.; Fenech, D. M.; McHardy, I. M.; Smith, Daniel; Williams, D. R. A. (2017-01-22)We present high-resolution e-MERLIN radio continuum maps of the Dwarf Irregular galaxy IC10 at 1.5GHz and 5GHz. We detect 11 compact sources at 1.5GHz, 5 of which have complementary detections at 5GHz. We classify 3 extended ... -
A High-Resolution Radio Continuum Study of the Dwarf Irregular Galaxy IC10
Westcott, Jonathan (2015-08-25)Dwarf galaxies are a significant contributor to the current star formation rate for the Universe as a whole, yet little is understood of what drives star formation in these low gas density environments. IC10 is a nearby ... -
New insights into the interstellar medium of the dwarf galaxy IC 10 : connection between magnetic fields, the radio--infrared correlation and star formation
Basu, Aritra; Roychowdhury, Sambit; Heesen, Volker; Beck, Rainer; Brinks, Elias; Westcott, Jonathan; Hindson, Luke (2017-10-11)We present the highest sensitivity and angular resolution study at 0.32 GHz of the dwarf irregular galaxy IC\,10, observed using the Giant Metrewave Radio Telescope, probing $\sim45$ pc spatial scales. We find the ... -
Radio Continuum Emission as a Star Formation Tracer: Bridging the Spatial Scales
Westcott, Jonathan (2019-01-07)Radio continuum emission has been demonstrated to be an excellent tracer of recent star formation, yet current understanding remains empirical, and is primarily based upon integrated multi–frequency or resolved mono–chromatic ... -
A Radio Continuum Study of Dwarf Galaxies : 6 cm imaging of Little Things
Hindson, Luke; Kitchener, Ged; Brinks, Elias; Heesen, Volker; Westcott, Jonathan; Hunter, Deidre; Zhang, Hong-Xin; Rupen, Michael; Rau, Urvashi (2018-02-01)In this paper, we examine to what extent the radio continuum can be used as an extinction-free probe of star formation in dwarf galaxies. To that aim, we observe 40 nearby dwarf galaxies with the Very Large Array at 6 cm ... -
A Spatially Resolved Radio Spectral Index Study of the Dwarf Irregular Galaxy NGC\,1569
Westcott, Jonathan; Brinks, Elias; Hindson, Luke; Beswick, Robert; Heesen, Volker (2018-04-21)We study the resolved radio continuum spectral energy distribution of the dwarf irregular galaxy, NGC 1569, on a beam-by-beam basis to isolate and study its spatially resolved radio emission characteristics. Utilizing ... -
Unveiling the 100 pc scale nuclear radio structure of NGC 6217 with e-MERLIN and the VLA
Williams, David R. A.; McHardy, Ian M.; Baldi, Ranieri D.; Beswick, Robert J.; Pahari, Mayukh; Argo, Megan K.; Beri, Aru; Boorman, Peter; Brinks, Elias; Dullo, Bililign T.; Fenech, Danielle M.; Ineson, Judith; Kharb, Preeti; Knapen, Johan H.; Muxlow, Tom W. B.; Westcott, Jonathan (2019-07-01)We present high-sensitivity 1.51 GHz e-MERLIN (e-Multi-Element Radio-Linked Interferometer Network) radio images of the nearby galaxy NGC6217. We resolve the compact radio source at the centre of NGC6217 for the first time, ...