Now showing items 1-9 of 9

    • A multiwavelength study of young massive star forming regions. II. The dust environment 

      Garay Brignardello, Guido; Mardones Pérez, Diego; Brooks, Kate J.; Videla, Liza; Contreras, Yanett (2007)
      We present observations of 1.2 mm dust continuum emission made with the Swedish-ESO Submillimeter Telescope toward 18 luminous IRAS point sources, all with colors typical of compact H II regions and associated with CS(2 ...
    • A Protostellar Jet Emanating from a hypercompact H II Region 

      Guzmán Fernández, Andrés; Garay Brignardello, Guido; Rodríguez, Luis F.; Contreras, Yanett; Dougados, Catherine; Cabrit, Sylvie (IOP, 2016)
      We present radio continuum observations of the high-mass young stellar object (HMYSO) G345.4938+01.4677 obtained using the Australia Telescope Compact Array (ATCA) at 5, 9, 17, and 19 GHz. These observations provide definite ...
    • Far-Infrared Dust Temperatures and Column Densities of the MALT90 Molecular Clump Sample 

      Guzmán, Andrés E.; Sanhueza, Patricio; Contreras, Yanett; Smith, Howard A.; Jackson, James M.; Hoq, Sadia; Rathborne, Jill (IOP Publishing, 2015)
      We present dust column densities and dust temperatures for similar to 3000 young, high-mass molecular clumps from the Millimeter Astronomy Legacy Team 90 GHz survey, derived from adjusting single-temperature dust emission ...
    • Fragmentation in filamentary molecular clouds 

      Contreras, Yanett; Garay Brignardello, Guido; Rathborne, Jill; Sanhueza, Patricio (OXFORD UNIV PRESS, 2016)
      Recent surveys of dust continuum emission at sub-mm wavelengths have shown that filamentary molecular clouds are ubiquitous along the Galactic plane. These structures are inhomogeneous, with overdensities that are sometimes ...
    • Infall signatures in a prestellar core embedded in the high-mass 70 mu m Dark IRDC G331.372-00.116 

      Contreras, Yanett; Sanhueza, Patricio; Jackson, James M.; Guzmán, Andrés E.; Longmore, Steven; Garay Brignardello, Guido; Zhang, Qizhou; Quang, Nguyen-Lu'o'Ng; Tatematsu, Ken'ichi; Nakamura, Fumitaka; Sakai, Takeshi; Ohashi, Satoshi; Liu, Tie; Saito, Masao; Gómez, Laura; Rathborne, Jill; Whitaker, Scott (IOP Publishing, 2018-07)
      Using Galactic Plane surveys, we have selected a massive (1200M circle dot), cold (14 K) 3.6-70 mu m dark IRDC, G331.372-00.116. This infrared dark cloud (IRDC) has the potential to form high-mass stars, and given the ...
    • Linking dense gas from the milky way to external galaxies 

      Stephens, Ian W.; Jackson, James M.; Whitaker, J. Scott; Contreras, Yanett; Guzmán, Andres E.; Sanhueza, Patricio; Foster, Jonathan B.; Rathborne, Jill (IOP Publishing, 2016-06-10)
      In a survey of 65 galaxies, Gao & Solomon found a tight linear relation between the infrared luminosity (L-IR, a proxy for the star formation rate) and the HCN(1-0) luminosity (L-HCN). Wu et al. found that this relation ...
    • A protostellar jet emanating from a hypercompact H II region 

      Guzmán, Andrés E.; Garay Brignardello, Guido; Rodríguez, Luis F.; Contreras, Yanett; Dougados, Catherine; Cabrit, Sylvie (The American Astronomical Society, 2016)
      We present radio continuum observations of the high-mass young stellar object (HMYSO) G345.4938+01.4677 obtained using the Australia Telescope Compact Array (ATCA) at 5, 9, 17, and 19 GHz. These observations provide ...
    • SuperMALT: Physical and Chemical Properties of Massive and Dense Clumps 

      Neupane, Sudeep; Garay Brignardello, Guido; Contreras, Yanett (Cambridge University Press, 2017)
      The SuperMALT survey is observing 76 MALT90 clumps at different evolutionary stages (from pre-stellar or quiescent to HII) in high excitation molecular lines and key isotopomers using the Apex 12m telescope with an angular ...
    • The carina nebula and gum 31 molecular complex: II. The distribution of the atomic gas revealed in unprecedented detail 

      Rebolledo, David; Green, Anne J.; Burton, Michael; Brooks, Kate J.; Breen, Shari L.; Gaensler, B. M.; Contreras, Yanett; Braiding, Catherine; Purcell, Cormac (Oxford University Press, 2017)
      We report high spatial resolution observations of the HI 21cm line in the Carina Nebula and the Gum 31 region obtained with the Australia Telescope Compact Array. The observations covered similar to 12 deg(2) centred on l ...