Browsing by Author "c6444208-a06f-4576-b69a-d0b7b648d338"

Now showing items 1-6 of 6

    • ALMA observations of two massive and dense MALT90 clumps 
      Neupane, Sudeep; Garay Brignardello, Guido; Contreras, Yanett; Guzmán, Andrés; Rodríguez, Luis Felipe (IOP, 2020)
      We report Atacama Large Millimeter Array observations of 3 mm dust continuum emission and line emission, in HCO+, (HCO+)-C-13, N2H+, and CH3CN, toward two massive and dense clumps (MDCs) in early but distinct evolutionary ...
    • Eeffect of feedback of massive stars in the fragmentation, distribution, and kinematics of the gas in two ... 
      Rebolledo, David; Guzmán, Andrés; Contreras, Yanett; Garay Brignardello, Guido; Medina, S. N. X.; Sanhueza, Patricio; Green, Anne; Castro, Camila; Guzmán, Viviana; Burton, Michael G. (IOP, 2020)
      We present ALMA high spatial resolution observations toward two star-forming regions located in one of the most extreme zones of star formation in the Galaxy, the Carina Nebula. One region is located at the center of the ...
    • A hot molecular outflow driven by the ionized jet associated with IRAS 16562-3959 
      Guzmán, Andrés; Garay Brignardello, Guido; Brooks, Kate J.; Rathborne, Jill; Güsten, Rolf (The American Astronomical Society, 2011-08-01)
      We report molecular line observations in the CO J = 3→2, 6→5, and 7→6 transitions, made using the Atacama Pathfinder Experiment Telescope, toward the massive and dense core IRAS 16562−3959. This core harbors a string of ...
    • 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 ...
    • Molecular line emission as a tool for galaxy observations (LEGO). I. HCN as a tracer of moderate gas densities ... 
      Kauffmann, Jens; Goldsmith, Paul F.; Melnick, Gary; Tolls, Volker; Guzmán, Andrés; Menten, Karl M. (EDP Sciences, 2017)
      Trends observed in galaxies, such as the Gao & Solomon relation, suggest a linear relationship between the star formation rate and the mass of dense gas available for star formation. Validation of such trends requires the ...
    • A string of radio emission associated with IRAS 16562-3959: a collimated jet emanating from a luminous ... 
      Guzmán, Andrés; Garay Brignardello, Guido; Brooks, Kate J. (The American Astronomical Society, 2010-12-10)
      We report the discovery, made using the Australia Telescope Compact Array, of a remarkable string of radio emission toward IRAS 16562−3959, a luminous infrared source with a bolometric luminosity of 7.0×104 L . The ...