Browsing by Author "Bronfman Aguiló, Leonardo"

Now showing items 21-38 of 38

    • Infrared dark clouds on the far side of the Galaxy 
      Giannetti, A.; Wyrowski, Friedrich; Leurini, S.; Urquhart, J.; Csengeri, T.; Menten, K. M.; Bronfman Aguiló, Leonardo; Van der Tak, F. F. S. (EDP Sciences, 2015)
      Context. Infrared dark clouds are the coldest and densest portions of giant molecular clouds. The most massive ones represent some of the most likely birthplaces for the next generation of massive stars in the Milky Way. ...
    • Kinetic temperatures toward X1/X2 orbit interceptions regions and giant molecular loops in the Galactic ... 
      Riquelme, D.; Amo Baladrón, M. A.; Martín Pintado, J.; Mauersberger, R.; Martín, S.; Bronfman Aguiló, Leonardo (EDP Sciences, 2013)
      Context. It is well known that the kinetic temperatures, Tkin, of the molecular clouds in the Galactic center region are higher than in typical disk clouds. However, the Tkin of the molecular complexes found at higher ...
    • Lack of high-mass pre-stellar cores in the starless MDCs of NGC 6334 
      Louvet, F.; Neupane, S.; Garay Brignardello, Guido; Russeil, D.; Zavagno, A.; Guzman, A.; Gomez, L.; Bronfman Aguiló, Leonardo; Nony, T. (EDP Sciences, 2019)
      Context. The formation of high-mass stars remains unknown in many aspects. There are two competing families of models to explain the formation of high-mass stars. On the one hand, quasi-static models predict the existence ...
    • Low-velocity shocks traced by extended sio emission along the w43 ridges: witnessing the formation of young ... 
      Nguyen-Luong, Q.; Motte, F.; Carlhoff, P.; Louvet, F.; Lesaffre, P.; Schilke, P.; Hill, T.; Hennemann, M.; Gusdorf, A.; Didelon, P.; Schneider, N.; Bontemps, S.; Duarte Cabral, A.; Menten, K. M.; Martin, P. G.; Wyrowski, F.; Bendo, G.; Roussel, H.; Bernard, J. P.; Bronfman Aguiló, Leonardo; Henning, Thomas; Kramer, C.; Heitsch, F. (The American Astronomical Society, 2013-10-01)
      The formation of high-mass stars is tightly linked to that of their parental clouds. Here, we focus on the high-density parts of W43, a molecular cloud undergoing an efficient event of star formation. Using a column density ...
    • MALT90: The Millimetre Astronomy Legacy Team 90 GHz Survey 
      Jackson, J. M.; Rathborne, J.; Foster, J. B.; Whitake, J.; Sanhueza, P.; Claysmith, C.; Mascoop, J.; Wienen, M.; Breen, S.; Herpin, F.; Duarte Cabral, A.; Csengeri, T.; Longmore, S.; Contreras, Y.; Indermuehle, B.; Barnes, P.; Walsh, A. J.; Cunningham, M.; Brooks, K.; Britton, T.; Voronkov, M.; Urquhart, J.; Alves, J.; Jordan, C.; Hill, T.; Hoq, S.; Finn, S. C.; Bains, I.; Bontemps, S.; Bronfman Aguiló, Leonardo; Caswel, J.; Deharveng, L.; Ellingsen, S.; Fuller, G.; Garay Brignardello, Guido; Green, J.; Hindson, L.; Jones, P. A.; Lenfestey, C.; Lo, Nadia; Lowe, V.; Mardones Pérez, Diego; Menten, K.; Minier, V.; Morgan, L.; Motte, F.; Muller, E.; Peretto, N.; Purcell, C. R.; Schilke, P.; Bontemps, Schneider; Schuller, F.; Titmarsh, A.; Wyrowski, F.; Zavagno, A. (Astronomical Society of Australia, 2013)
      The Millimetre Astronomy Legacy Team 90 GHz (MALT90) survey aims to characterise the physical and chemical evolution of high-mass star-forming clumps. Exploiting the unique broad frequency range and on-the-fly ...
    • Massive star formation in the GMC G345.5+1.0: spatial distribution of the dust emission 
      López Saavedra, Celso; Bronfman Aguiló, Leonardo; Nyman, L.-Å.; May Humeres, Jorge; Garay Brignardello, Guido (EDP SCIENCES S A, 2011-10)
      Context. Massive condensations in giant molecular clouds (GMCs) are linked to the formation of high mass stars, which are the principal source of heavy elements and UV radiation, playing an important role in the evolution ...
    • Molecular Cloud Fragmentation and Massive Star Formation in the GMC G345.5+1.0 
      López Calderón, Cristian Marcelo (Universidad de Chile, 2011)
      Las condensaciones masivas en nubes moleculares gigantes (GMCs) están asociadas con la formación de estrellas de alta masa, las cuales son la principal fuente de elementos pesados y radiación UV, jugando un papel importante ...
    • The molecular environment of the Galactic star forming region G19.61–0.23 
      Santangelo, G.; Testi, L.; Leurini, S.; Walmsley, C. M.; Cesaroni, R.; Bronfman Aguiló, Leonardo; Carey, S.; Gregorini, L.; Menten, K. M.; Molinari, S.; Noriega Crespo, A.; Olmi, L.; Schuller, F. (ESO, 2010-06-03)
      Context. Although current facilities allow the study of Galactic star formation at high angular resolution, our current understanding of the high-mass star-formation process is still very poor. In particular, we still ...
    • Molecules, dust, and protostars in NGC 3503 
      Duronea, N. U.; Vásquez, J.; Romero, G. A.; Cappa, C. E.; Barbá, R.; Bronfman Aguiló, Leonardo (EDP Sciences, 2014-05)
      Aims. We present here a follow-up study of the molecular gas and dust in the environs of the star forming region NGC 3503. This study aims at dealing with the interaction of the Hii  region NGC 3503 with its parental ...
    • Physical properties of molecular clouds in the southern outer Galaxy 
      May,; Alvarez,; Bronfman Aguiló, Leonardo (1997)
      We have used a deep CO survey of the third galactic quadrant (May et al. 1993) to derive the physical properties of molecular clouds in the outer Galaxy. Within the range of this survey, from 194° to 270° in galactic ...
    • SECOND SEASON QUIET OBSERVATIONS: MEASUREMENTS OF THE COSMIC MICROWAVE BACKGROUND POLARIZATION POWER SPECTRUM ... 
      Araujo, D.; Bischoff, C.; Brizius, A; Buder, I.; Chinone, Y.; Cleary, K.; Dumoulin, R. N.; Kusaka, A.; Monsalve, R.; Næss, S. K.; Newburgh, L. B.; Reeves, R.; Wehus, I. K.; Zwart, J. T. L.; Bronfman Aguiló, Leonardo; Bustos, R.; Church, S. E.; Dickinson, C.; Eriksen, H. K.; Gaier, T.; Gundersen, J. O.; Hasegawa, M.; Hazumi, M.; Huffenberger, K. M.; Ishidoshiro, K.; Jones, M. E.; Kangaslahti, P.; Kapner, D. J.; Kubik, D.; Lawrence, C. R.; Limon, M.; McMahon, J. J.; Miller, A. D.; Nagai, Makoto; Nguyen, H.; Nixon, G.; Pearson, T. J.; Piccirillo, L.; Radford, S. J. E.; Readhead, A. C. S.; Richards, J. L.; Samtleben, D.; Seiffert, M.; Shepherd, M. C.; Smith, K.; Staggs, S. T.; Tajima, O.; Thompson, K. L.; Vanderlinde, K.; Williamson, R. (IOP PUBLISHING LTD, 2012-12)
      The Q/U Imaging ExperimenT (QUIET) has observed the cosmic microwave background (CMB) at 43 and 95 GHz. The 43 GHz results have been published in a previous paper, and here we report the measurement of CMB polarization ...
    • The slow ionized wind and rotating disklike system that are associated with the high-mass young stellar ... 
      Guzmán Fernández, Andrés; Garay Brignardello, Guido; Rodríguez, Luis; Moran, James; Brooks, Kate J.; Bronfman Aguiló, Leonardo; Nyman, Lars-Åke; Sanhueza, Patricio; Mardones Pérez, Diego (The American Astronomical Society, 2014-12-01)
      We report the detection, made using ALMA, of the 92 GHz continuum and hydrogen recombination lines (HRLs) H40α, H42α, and H50β emission toward the ionized wind associated with the high-mass young stellar object G345.49 ...
    • Submillimeter line emission from LMC N159W: a dense, clumpy PDR in a low metallicity environment 
      Pineda, J. L.; Mizuno, Norikazu; Stutzki, J.; Cubick, M.; Aravena, Mauricio; Bensch, F.; Bertoldi, Frank; Bronfman Aguiló, Leonardo; Fujishita, K.; Graf, Urs U.; Hitschfeld, M.; Honingh, N.; Jakob, H.; Jacobs, K.; Kawamura, Akiko; Klein, U.; Kramer, C.; May Humeres, Jorge; Miller, M.; Mizuno, Yoji; Müller, P.; Onishi, T.; Ossenkopf, V.; Rabanus, David; Röllig, M.; Rubio López, Mónica; Sasago, H.; Schieder, R.; Simon, R.; Sun, K.; Volgenau, N.; Yamamoto, Hiroaki; Fukui, Yasuo (EDP SCIENCES S A, 2008-04)
      Context. Star formation at earlier cosmological times took place in an interstellar medium with low metallicity. The Large Magellanic Cloud (LMC) is ideally suited to study star formation in such an environment. Aims. ...
    • A survey of the Galactic center region in HCO+, H13CO+, and SiO 
      Riquelme, D.; Bronfman Aguiló, Leonardo; Mauersberger, R.; May Humeres, Jorge; Wilson, T. L. (EDP Sciences, 2010-11)
      Aims. A large-scale survey of the Galactic center region in the 3 mm rotational transitions of SiO, HCO+ and (HCO+)-C-13 (beamsize similar to 3'.6) was conducted to provide an estimate of cloud conditions, heating mechanisms, ...
    • The anisotropy of the microwave background to l = 3500: Deep field observations with the cosmic background imager 
      Mason, B. S.; Pearson, T. J.; Readhead, A. C.S.; Shepherd, M. C.; Sievers, J.; Udomprasert, P. S.; Cartwright, J. K.; Farmer, A. J.; Padin, S.; Myers, S. T.; Bond, J. R.; Contaldi, C. R.; Pen, U.; Prunet, S.; Pogosyan, D.; Carlstrom, J. E.; Kovac, J.; Leitch, E. M.; Pryke. C.; Halverson, N.W.; Holzapfel, W. L.; Altamirano, P.; Bronfman Aguiló, Leonardo; Casassus Montero, Simón; May, J.; Joy, M. (Institute of Physics Publishing, 2003)
      We report measurements of anisotropy in the cosmic microwave background radiation over the multipole range l ∼ 200-3500 with the Cosmic Background Imager based on deep observations of three fields. These results confirm ...
    • The anisotropy of the microwave background to l = 3500: Mosaic observations with the cosmic background imager 
      Pearson, T. J.; Mason, B. S.; Readhead, A. C.S.; Shepherd, M. C.; Sievers, J. L.; Udomprasert, P. S.; Cartwright, J. K.; Farmer, A. J.; Padin, S.; Myers, S. T.; Bond, J. R.; Contaldi, C. R.; Pen, U. L.; Prunet, S.; Pogosyan, D.; Carlstrom, J. E.; Kovac, J.; Leitch, E. M.; Pryke. C.; Halverson, N. W.; Holzapfel, W. L.; Altamirano, P.; Bronfman Aguiló, Leonardo; Casassus Montero, Simón; May, J.; Joy, M. (Institute of Physics Publishing, 2003)
      Using the Cosmic Background Imager (CBI), a 13-element interferometer array operating in the 26-36 GHz frequency band, we have observed 40 deg 2 of sky in three pairs of fields, each ∼1457prime; × 165′, using overlapping ...
    • Tracing gas accretion in the Galactic center using isotopic ratios 
      Riquelme, D.; Amo Baladrón, M. A.; Martín Pintado, J.; Mauersberger, R.; Martín, S.; Bronfman Aguiló, Leonardo (EDP Sciences, 2010-11)
      Aims. We study the 12C/13C isotopic ratio in the disk of the central molecular zone and in the halo to trace gas accretion toward the Galactic center region in the Milky Way. Methods. Using the IRAM30m telescope, we ...
    • Tracing H2 column density with atomic carbon (C i) and co isotopologs 
      Lo, Nadia; Cunningham, M. R.; Jones, P. A.; Bronfman Aguiló, Leonardo; Cortes, P. C.; Simon, R.; Lowe, V.; Fissel, L.; Novak, G. (2014-12-20)
      We present the first results of neutral carbon ([Ci] 3P1–3P0 at 492 GHz) and carbon monoxide (13CO, J = 1–0) mapping in the Vela Molecular Ridge cloud C (VMR-C) and the G333 giant molecular cloud complexes with the NANTEN2 ...