Browsing University of Hertfordshire by Author "Thompson, M.A."

Now showing items 1-20 of 72

    • A 325-MHz GMRT survey of the Herschel-ATLAS/GAMA fields 

      Mauch, T.; Kloeckner, H-R.; Rawlings, S.; Jarvis, M.J.; Hardcastle, M.J.; Obreschkow, D.; Saikia, D.J.; Thompson, M.A. (2013-10-01)
      We describe a 325-MHz survey, undertaken with the Giant Metrewave Radio Telescope (GMRT), which covers a large part of the three equatorial fields at 9, 12 and 14.5 h of right ascension from the Herschel-Astrophysical ...

    • 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 ...

    • 6.7-GHz methanol maser associated outflows : an evolutionary sequence 

      De Villiers, Helena Maria; Chrysostomou, A.; Thompson, M.A.; Urquhart, J.S.; Breen, S.L.; Burton, M.G.; Ellingsen, S.P.; Fuller, G.A.; Pestalozzi, Michele; Voronkov, M. A.; Ward-Thompson, D. (2015-05-01)
      We present a continuing study of a sample 44 molecular outflows, observed in 13CO lines, closely associated with 6.7-GHz methanol masers, hence called methanol maser associated outflows (MMAOs). We compare MMAO properties ...

    • Accounting for the foreground contribution to the dust emission towards Kepler's supernova remnant 

      Gomez, H.L.; Dunne, L.; Ivison, R.J.; Reynoso, E.M.; Thompson, M.A.; Sibthorpe, B.; Eales, S.A.; Delaney, T.M.; Maddox, S.; Isaak, K. (2009)
      Whether or not supernovae contribute significantly to the overall dust budget is a controversial subject. Submillimetre (sub-mm) observations, sensitive to cold dust, have shown an excess at 450 and 850 μm in young remnants ...

    • The almost ubiquitous association of 6.7-GHz methanol masers with dust 

      Urquhart, J.S.; Moore, T. J. T.; Menten, K. M.; Koenig, C.; Wyrowski, F.; Thompson, M.A.; Csengeri, T.; Leurini, S.; Eden, D.J. (2015-02)
      We report the results of 870-μm continuum observations, using the Large APEX Bolometer Camera, towards 77 class-II, 6.7-GHz methanol masers identified by the Methanol MultiBeam (MMB) survey to map the thermal emission from ...

    • Ammonia observations of bright-rimmed clouds : establishing a sample of triggered protostars 

      Morgan, L.K.; Figura, C.C.; Urquhart, J.S.; Thompson, M.A. (2010)
      We observed 42 molecular condensations within previously identified bright-rimmed clouds in the ammonia rotational inversion lines NH3(1,1), (2,2), (3,3) and (4,4) using the Green Bank Telescope in Green Bank, West Virginia. ...

    • ATLASGAL - towards a complete sample of massive star forming clumps 

      Urquhart, J.S.; Moore, T. J. T.; Csengeri, T.; Wyrowski, F.; Schuller, F.; Hoare, M.G.; Lumsden, S. L.; Mottram, J. C.; Thompson, M.A.; Menten, K. M.; Walmsley, C.M.; Bronfman, L.; Pfalzner, S.; König, C.; Wienen, M. (2014-09-11)
      By matching infrared-selected, massive young stellar objects (MYSOs) and compact HII regions in the Red MSX Source survey to massive clumps found in the submillimetre ATLASGAL (APEX Telescope Large Area Survey of the Galaxy) ...

    • CHIMPS: the 13CO/C18O (J = 3 to 2) Heterodyne Inner Milky Way Plane Survey 

      Rigby, A.J.; Moore, T.J.T.; Plume, R.; Eden, D.J.; Urquhart, J.S.; Thompson, M.A.; Mottram, J.C.; Brunt, C.M.; Butner, H. M.; Dempsey, J. T.; Gibson, S.J.; Hatchell, J.; Jenness, T.; Kuno, N.; Longmore, S.N.; Morgan, L.K.; Polychroni, D.; Thomas, H.; White, G.J.; Zhu, M. (2016-03-01)
      We present the 13CO/C18O (J = 3 → 2) Heterodyne Inner Milky Way Plane Survey (CHIMPS) which has been carried out using the Heterodyne Array Receiver Program on the 15 m James Clerk Maxwell Telescope (JCMT) in Hawaii. The ...

    • CO observations towards bright-rimmed clouds 

      Morgan, L.K.; Urquhart, J.S.; Thompson, M.A. (2009)
      Bright-rimmed clouds (BRCs) appear to be sites of triggered star formation induced through the propagation of shocks initiated by the expansion of nearby H ii regions. Our main aim is to establish support for observations ...

    • Collapse and expansion in the bright-rimmed cloud SFO 11NE 

      Thompson, M.A.; White, G.J. (2004)

    • A Compact Array imaging survey of southern bright-rimmed clouds 

      Thompson, M.A.; Urquhart, J.S.; White, G.J. (2004)

    • Constraints on the circumstellar dust around KIC 8462852 

      Thompson, M.A.; Scicluna, Peter; Kemper, F.; Geach, James; Dunham, M. M.; Morata, Oscar; Ertel, S.; Ho, Paul T. P.; Dempsey, J. T.; Coulson, I.M.; Petitpas, G.; Kristensen, L. (2016-05-01)
      We present millimetre (SMA) and sub-millimetre (SCUBA-2) continuum observations of the peculiar star KIC 8462852 which displayed several deep and aperiodic dips in brightness during the Kepler mission. Our observations are ...

    • The Coordinated Radio and Infrared Survey for High-Mass Star Formation (The CORNISH Survey). I : Survey Design 

      Hoare, M.G.; Purcell, C.R.; Churchwell, E.B.; Diamond, P.; Cotton, W.D.; Chandler, C.J.; Smethurst, S.; Kurtz, S.E.; Mundy, L.G.; Dougherty, S.M.; Fender, R.P.; Fuller, G.A.; Jackson, J.M.; Garrington, S.T.; Gledhill, T.; Goldsmith, P.F.; Lumsden, S.L.; Martí, J.; Moore, T.J.T.; Muxlow, T.W.B.; Oudmaijer, R.D.; Pandian, J.D.; Paredes, J.M.; Shepherd, D.S.; Spencer, R.E.; Thompson, M.A.; Umana, G.; Urquhart, J.S.; Zijlstra, A.A. (2012-09-01)
      We describe the motivation, design, and implementation of the CORNISH survey, an arcsecond-resolution radio continuum survey of the inner galactic plane at 5 GHz using the Very Large Array (VLA). It is a blind survey ...

    • The Coordinated Radio and Infrared Survey for High-mass Star Formation II : Source Catalog 

      Purcell, C.R.; Hoare, M.G.; Cotton, W.D.; Lumsden, S. L.; Urquhart, J.S.; Chandler, C.; Churchwell, E.B.; Diamond, P.; Dougherty, S.M.; Fender, R.P.; Fuller, G.; Garrington, S.T.; Gledhill, T.; Goldsmith, P.F.; Hindson, L.; Jackson, J.M.; Kurtz, S.E.; Martí, J.; Moore, T.J.T.; Mundy, L.G.; Muxlow, T.W.B.; Oudmaijer, R.D.; Pandian, J.D.; Paredes, J.M.; Shepherd, D.S.; Smethurst, S.; Spencer, R.E.; Thompson, M.A.; Umana, G.; Zijlstra, A.A. (2013-03-01)
      The CORNISH project is the highest resolution radio continuum survey of the Galactic plane to date. It is the 5 GHz radio continuum part of a series of multi-wavelength surveys that focus on the northern GLIMPSE region ...

    • The effect of spiral arms on star formation in the Galaxy 

      Moore, T.J.T.; Urquhart, J.S.; Morgan, L.K.; Thompson, M.A. (2012-10-11)

    • The G305 star-forming complex : embedded massive star formation discovered by Herschel Hi-GAL 

      Faimali, A.; Thompson, M.A.; Hindson, Luke; Urquhart, J.S.; Pestalozzi, M.; Carey, S.; Shenoy, S.; Veneziani, M.; Molinari, S.; Clark, J.S. (2012-10-11)

    • The G305 star-forming complex : wide-area molecular mapping of NH3 and H2O masers 

      Hindson, Luke; Thompson, M.A.; Urquhart, J.S.; Clark, J.S.; Davies, B. (2010)
      We present wide-area radio (12 mm) Mopra telescope observations of the complex and rich massive star-forming region G305. Our goals are to determine the reservoir for star formation within G305 using NH3 to trace the dense ...

    • Giving physical significance to the Hi-GAL data : determining the distance of cold dusty cores in the Milky Way 

      Russeil, D.; Pestalozzi, M.; Mottram, J.C.; Bontemps, S.; Anderson, L.D.; Zavagno, A.; Beltran, M.T.; Bally, J.; Brand, J.; Brunt, C.; Cesaroni, R.; Joncas, G.; Marshall, D.; Martin, P.; Massi, F.; Molinari, S.; Moore, T.J.T.; Noriega-Crespo, A.; Olmi, L.; Thompson, M.A.; Wienen, M.; Wyrowski, F. (2011)
      Context: Hi-GAL, an open time key-project of the Herschel satellite, was awarded 343 hours observing time to carry out a 5-band photometric imaging survey at 70, 160, 250, 350, and 500 mu m of a vertical bar b vertical bar ...