Browsing University of Hertfordshire by Author "Green, J.A."

Now showing items 1-12 of 12

    • The 6-GHz methanol multibeam maser catalogue - III. Galactic longitudes 330° to 345° 

      Caswell, J.L.; Green, J.A.; Breen, S.L.; Voronkov, M.A.; Fuller, G.A.; Avison, A.; Gray, M.D.; Quinn, L.; Breen, S.L.; Ellingsen, S.P.; Pestalozzi, M.R.; Thompson, Mark (2011-11-01)
      We present results from the third portion of the Methanol Multibeam Galactic plane survey of masers at 6668 MHz. It covers the longitude range 330°-345°, yielding 198 masers, of which more than 40per cent are new discoveries. ...

    • The 6-GHz methanol multibeam maser catalogue IV. : Galactic longitudes 186deg-330deg including the Orion-Monoceros region 

      Green, J.A.; Caswell, J.L.; Fuller, G.A.; Avison, A.; Breen, S.L.; Ellingsen, S.P.; Gray, M.D.; Pestalozzi, M.; Quinn, L.; Thompson, Mark; Voronkov, M. A. (2012-03-01)
      We present the fourth portion of a Galactic plane survey of methanol masers at 6668 MHz, spanning the longitude range 186°–330°. We report 207 maser detections, 89 new to the survey. This completes the southern sky part ...

    • The 6-GHz methanol multibeam maser catalogue – I. Galactic Centre region, longitudes 345° to 6° 

      Caswell, J.L.; Fuller, G.A.; Green, J.A.; Avison, A.; Breen, S.L.; Brooks, K.; Burton, M.G.; Chrysostomou, A.; Cox, J.; Diamond, P.J.; Ellingsen, S.; Gray, M.D.; Hoare, M.G.; Masheder, M.R.W.; McClure-Griffiths, N.; Pestalozzi, M.; Phillips, C.; Quinn, L.; Thompson, M.A.; Voronkov, M.; Walsh, A.; Ward-Thompson, D.; Wong-McSweeney, D.; Yates, J.A.; Cohen, R.J. (2010)
      We have conducted a Galactic plane survey of methanol masers at 6668 MHz using a seven-beam receiver on the Parkes telescope. Here we present results from the first part, which provides sensitive unbiased coverage of a ...

    • The 6-GHz methanol multibeam maser catalogue – II. Galactic longitudes 6° to 20° 

      Green, J.A.; Caswell, J.L.; Fuller, G.A.; Avison, A.; Breen, S.L.; Ellingsen, S.; Gray, M.D.; Pestalozzi, M.; Quinn, L.; Thompson, M.A.; Voronkov, M. (2010)
      We present the second portion of an unbiased survey of the Galactic plane for 6668-MHz methanol masers. This section of the survey spans the longitude range 6° to 20°. We report the detection of 119 maser sources, of which ...

    • The 6-GHz multibeam maser survey – I. Techniques 

      Green, J.A.; Caswell, J.L.; Fuller, G.A.; Avison, A.; Breen, S.L.; Brooks, K.; Burton, M.; Chrysostomou, A.; Cox, J.; Diamond, P.J.; Ellingsen, S.; Gray, M.D.; Hoare, M.G.; Masheder, M.R.W.; McClure-Griffiths, N.; Pestalozzi, M.; Phillips, C.; Quinn, L.; Thompson, M.A.; Voronkov, M.; Walsh, A.; Ward-Thompson, D.; Wong-McSweeney, D.; Yates, J.A.; Cohen, R.J. (2009)
      A new 7-beam 6−7 GHz receiver has been built to survey the Galaxy and the Magellanic Clouds for newly forming high-mass stars that are pinpointed by strong methanol maser emission at 6668 MHz. The receiver was jointly ...

    • The H2O Southern Galactic Plane Survey : NH3 (1,1) and (2,2) catalogues 

      Purcell, C.R.; Longmore, S.N.; Walsh, A.J.; Whiting, M.T.; Breen, S.L.; Britton, T.; Brooks, K.J.; Burton, M.G.; Cunningham, M.R.; Green, J.A.; Harvey-Smith, L.; Hindson, L.; Hoare, M.G.; Indermuehle, B.; Jones, P.A.; Lo, N.; Lowe, V.; Phillips, C.J.; Thompson, M.A.; Urquhart, J.S.; Voronkov, M.A.; White, G.L. (2012-11-01)

    • The HO Southern Galactic Plane Survey (HOPS) - I. Techniques and HO maser data 

      Walsh, A.J.; White, G.L.; Breen, S.L.; Britton, T.; Brooks, K.J.; Green, J.A.; Harvey-Smith, L.; Hindson, L.; Indermuehle, B.; Jones, P.A.; Lowe, V.; Phillips, C.J.; Urquhart, J.S.; Voronkov, M.A.; Whiting, M.T.; Burton, M.G.; Cunningham, M.R.; Lowe, V.; Hindson, L.; Thompson, Mark; Hoare, M.G.; Purcell, C.R.; Jones, P.A.; Longmore, S.N.; Lo, N. (2011-09-01)
      We present first results of the HO Southern Galactic Plane Survey (HOPS), using the Mopra Radio Telescope with a broad-band backend and a beam size of about 2 arcmin. We have observed 100 deg of the southern Galactic plane ...

    • Major structures of the inner galaxy delineated by 6.7 GHz methanol masers 

      Green, J.A.; Caswell, J.L.; McClure-Griffiths, N.; Avison, A.; Breen, S.L.; Burton, M.; Ellingsen, S.; Fuller, G.A.; Gray, M.D.; Pestalozzi, M.; Thompson, M.A.; Voronkov, M. (2011)
      We explore the longitude-velocity distribution of 6.7 GHz methanol masers in the context of the inner structure of our Galaxy. We analyze the correlation in velocities within this distribution and identify density enhancements ...

    • The mid-infrared environments of 6.7 GHz methanol masers from the Methanol Multi-Beam Survey 

      Gallaway, M.; Thompson, M. A.; Lucas, P.W.; Fuller, G.A.; Caswell, J.L.; Green, J.A.; Voronkov, M. A.; Breen, S.L.; Quinn, L.; Ellingsen, S.P.; Avison, A.; Ward-Thompson, D.; Cox, J. (2013-04-01)
      We present a study of the mid-infrared environments and association with star formation tracers of 6.7 GHz methanol masers taken from the Methanol Multi-Beam (MMB) survey. Our ultimate goal is to establish the mass of the ...

    • Multibeam Maser Survey of methanol and excited OH in the Magellanic clouds: new detections and maser abundance estimates 

      Green, J.A.; Caswell, J.L.; Fuller, G.A.; Breen, S.L.; Brooks, K.; Burton, M.; Chrysostomou, A.; Cox, J.; Diamond, P.J.; Ellingsen, S.; Gray, M.D.; Hoare, M.G.; Masheder, M.R.W.; McClure-Griffiths, N.; Pestalozzi, M.; Phillips, C.; Quinn, L.; Thompson, M.A.; Voronkov, M.; Walsh, A.; Ward-Thompson, D.; Wong-McSweeney, D.; Yates, J.A.; Cohen, R.J. (2008)

    • The Parkes methanol multibeam survey 

      Cohen, R.J.; Caswell, J.L.; Brooks, K.; Burton, M.; Chrysostomou, A.; Cox, J.; Diamond, P.J.; Ellingsen, S.; Fuller, G.A.; Gray, M.D.; Green, J.A.; Hoare, M.G.; Masheder, M.R.W.; McClure-Griffiths, N.; Pestalozzi, M.; Phillips, C.; Thompson, M.A.; Voronkov, M.; Walsh, A.; Ward-Thompson, D.; Wong-McSweeney, D.; Yates, J.A. (2007)

    • Tomography of Galactic star-forming regions and spiral arms with the Square Kilometre Array 

      Loinard, L.; Thompson, M.A.; Hoare, M.; van Langevelde, H.J.; Ellingsen, S.; Brunthaler, A.; Forbrich, J.; Rygl, K.; Rodríguez, L.F.; Mioduszewski, A.J.; Torres-López, R.M.; Dzib, S.A.; Ortiz-León, G.N.; Bourke, T.; Green, J.A. (2015)
      Very Long Baseline Interferometry (VLBI) at radio wavelengths can provide astrometry accurate to 10 micro-arcseconds or better (i.e. better than the target GAIA accuracy) without being limited by dust obscuration. This ...