Browsing by Author "201-0549124"

Now showing items 61-80 of 98

    • Molecular gas in the Galactic center region .1. Data from a large scale (CO)-O-18(J=1->0) survey 
      Dahmen, G.; Hüttemeister, S.; Wilson, T. L.; Mauersberger, R.; Linhart, A.; Bronfman Aguiló, Leonardo; Tieftrunk, A. R.; Meyer, K.; Wiedenhöver, W.; Dame, T. M.; Palmer, E. S.; May Humeres, Jorge; Aparici, J.; Mac-Auli, F. (EDITIONS PHYSIQUE, 1997-12)
      A large scale survey of the Galactic center region in the (CO)-O-18(J = 1 --> 0) transition is presented. This survey was obtained with the 1.2 m Southern Millimeter-Wave Telescope (SMWT) at the Cerro Tololo Interamerican ...
    • Molecular gas, kinematics, and OB star formation in the spiral arms of the southern Milky Way 
      Luna, A.; Bronfman Aguiló, Leonardo; Carrasco, L.; May Humeres, Jorge (UNIV CHICAGO PRESS, 2006-04-20)
      The rotation curve for the fourth Galactic quadrant within the solar circle is derived from the Columbia University - Universidad de Chile CO (J = 1 -> 0) survey of molecular gas. A new sampling, 4 times denser in longitude ...
    • Molecular outflows within the filamentary infrared dark cloud G34.43+0.24 
      Sanhueza, P.; Garay Brignardello, Guido; Bronfman Aguiló, Leonardo; Mardones Pérez, Diego; May Humeres, Jorge; Saito, M. (2010-05-17)
      We present molecular line observations, made with angular resolutions of 2000, toward the filamentary infrared dark cloud G34.43+0.24 using the APEX [CO(3 ! 2), 13CO(3 ! 2), C18O(3 ! 2) and CS(7 ! 6) transitions], ...
    • Multiwavelength study of the G345.5+1.5 region 
      Figueira, M.; López Calderón, Cristian Marcelo; Bronfman Aguiló, Leonardo; Zavagno, A.; Hervías-Caimapo, Carlos; Duronea, N.; Nyman, L. A. (EDP Sciences, 2019)
      Context. The star formation process requires the dust and gas present in the Milky Way to self-assemble into dense reservoirs of neutral material where the new generation of stars will emerge. Star-forming regions are ...
    • New evidence on the origin of the microquasar GRO J1655-40 
      Combi, J. A.; Bronfman Aguiló, Leonardo; Mirabel, I. F. (EDP SCIENCES S A, 2007-05)
      Aims. Motivated by the new determination of the distance to the microquasar GRO J1655- 40 by Foellmi et al. ( 2006, A&A, 457, 249), we conduct a detailed study of the distribution of the atomic ( HI) gas, molecular ( CO) ...
    • Optimización de la razón señal a ruido de un receptor a 115 ghz para fines radioastronómicos. 
      Vásquez Drouilly, Cristián Claudio (Universidad de ChilePrograma Cybertesis, 2007)
    • Optimized corrugated tapered slot antenna for mm-Wave applications 
      Jarufe, Claudio; Rodríguez, Rafael; Tapia, Valeria; Astudillo, Pablo; Monasterio, David; Molina, Rocio; Mena Mena, Fausto Patricio; Reyes Guzmán, Nicolás Andrés; Bronfman Aguiló, Leonardo (IEEE Institute of Electrical and Electronics Engineers, 2018)
      We present a novel approach to design a high-performance tapered slot antenna (TSA) at millimeter-wave frequencies. Commonly, TSAs are designed using profiles expressed as simple functions (linear, exponential, Fermi, or ...
    • Outflows, cores, and magnetic field orientations in W43-MM1 as seen by ALMA 
      Arce Tord, C.; Louvet, F.; Cortés, P. C.; Motte, F.; Hull, C. L. H.; Le Gouellec, V. J. M.; Garay, G.; Nony, T.; Didelon, P.; Bronfman Aguiló, Leonardo (EDP Sciences, 2020)
      Aims. It has been proposed that the magnetic field, which is pervasive in the interstellar medium, plays an important role in the process of massive star formation. To better understand the impact of the magnetic field at ...
    • Photon dominated regions in NGC 3603 [CI] and mid-J CO line emission 
      Röllig, M.; Kramer, C.; Rajbahak, C.; Minamidani, T.; Sun, K.; Simon, R.; Ossenkopf, V.; Cubick, M.; Hitschfeld, M.; Aravena, M.; Bensch, F.; Bertoldi, F.; Bronfman Aguiló, Leonardo; Fujishita, M.; Fukui, Y.; Graf, U. U.; Honingh, N.; Ito, S.; Jakob, H.; Jacobs, K.; Klein, U.; Koo, B.-C.; May Humeres, Jorge; Miller, M.; Miyamoto, Y.; Mizuno, N.; Onishi, T.; Park, Y.-S.; Pineda, J.; Rabanus, D.; Sasago, H.; Schieder, R.; Stutzki, J.; Yamamoto, H.; Yonekura, Y. (2011-01)
      Aims. We aim at deriving the excitation conditions of the interstellar gas as well as the local FUV intensities in the molecular cloud surrounding NGC 3603 to get a coherent picture of how the gas is energized by the central ...
    • PHYSICAL CHARACTERISTICS OF G331.5-0.1: THE LUMINOUS CENTRAL REGION OF A GIANT MOLECULAR CLOUD 
      Merello, Manuel; Bronfman Aguiló, Leonardo; Garay Brignardello, Guido; Nyman, Lars Ake; Evans II, Neal J.; Walmsley, C. Malcolm (The American Astronomical Society, 2013-09-01)
      We report molecular line and dust continuum observations toward the high-mass star-forming region G331.5-0.1, one of the most luminous regions of massive star formation in the Milky Way, located at the tangent region ...
    • Polvo Frío y Gas Molecular en la Región N11 de la Nube Grande de Magallanes 
      Herrera Contreras, Cinthya Natalia (Universidad de ChileCyberDocs, 2010)
    • The Q/U Imaging ExperimenT: Polarization Measurements of the Galactic Plane at 43 and 95 GHz 
      Ruud, T. M.; Fuskeland, U.; Wehus, I. K.; Vidal, M.; Araujo, D.; Bischoff, C.; Buder, I.; Chinone, Y.; Cleary, K.; Dumoulin, R. N.; Kusaka, A.; Monsalve, R.; Næss, S. K.; Newburgh, L. B.; Reeves, R. A.; Zwart, J. T. L.; Bronfman Aguiló, Leonardo; Davies, R. D.; Davis, R.; Dickinson, C.; Eriksen, H. K.; Gaier, T.; Gundersen, J. O.; Hasegawa, M.; Hazumi, M.; Huffenberger, K. M.; Jones, M. E.; Lawrence, C. R.; Leitch, E. M.; Limon, M.; Miller, A. D.; Pearson, T. J.; Piccirillo, L.; Radford, S. J. E.; Readhead, A. C. S.; Samtleben, D.; Seiffert, M.; Shepherd, M. C.; Staggs, S. T.; Tajima, O.; Thompson, K. L. (IOP Publishing, 2015)
      We present polarization observations of two Galactic plane fields centered on Galactic coordinates (l, b) = (0 degrees, 0 degrees) and (329 degrees, 0 degrees) at both Q (43 GHz) and W bands (95 GHz), covering between 301 ...
    • Revealing the CO X-factor in Dark Molecular Gas through Sensitive ALMA Absorption Observations 
      Luo, Gan; Li, Di; Tang, Ningyu; Dawson, J. R.; Dickey, John; Bronfman Aguiló, Leonardo; Qin, Sheng-Li; Gibson, Steven; Plambeck, Richard; Finger Camus, Ricardo; Green, Anne J.; Mardones Pérez, Diego; Koo, Bon-Chul; Lo, Nadia (IOP, 2020)
      Carbon-bearing molecules, particularly CO, have been widely used as tracers of molecular gas in the interstellar medium (ISM). In this work, we aim to study the properties of molecules in diffuse, cold environments, where ...
    • Scaled up low-mass star formation in massive star-forming cores in the G333 giant molecular cloud 
      Wiles, B.; Lo, N.; Redman, M. P.; Cunningham, M. R.; Jones, P. A.; Burton, M. G.; Bronfman Aguiló, Leonardo (Oxford Univ Press, 2016)
      Three bright molecular line sources in G333 have recently been shown to exhibit signatures of infall. We describe amolecular line radiative transfer (RT) modelling process which is required to extract the infall signature ...
    • SEDIGISM: Structure, excitation, and dynamics of the inner Galactic interstellar medium 
      Schuller, F.; Csengeri, T.; Urquhart, J.S.; Duarte Cabral, A.; Barnes, P.J.; Giannetti, A.; Hernandez, A.K.; Leurini, S.; Mattern, M.; Medina, S. -N.X.; Agurto, C.; Azagra, F.; Anderson, L. D.; Beltrán, M.T.; Beuther, H.; Bontemps, S.; Bronfman Aguiló, Leonardo; Dobbs, C.L.; Dumke, M.; Finger Camus, Ricardo; Ginsburg, A.; González, E.; Henning, Thomas; Kauffmann, J.; Mac Auliffe, F.; Menten, K.M.; Montenegro Montes, F.M.; Moore, T.J.T; Muller, E.; Parra, R.; Pérez Beaupuits, J. -P.; Pettitt, A.; Russeil, D.; Sánchez Monge, A.; Schilke, P.; Schisano, E.; Suri, S.; Testi, L.; Torstensson, K.; Venegas, P.; Wang, K.; Wienen, M.; Wyrowski, F.; Zavagno, A. (EDP Sciences, 2017-05)
      Context. The origin and life-cycle of molecular clouds are still poorly constrained, despite their importance for understanding the evolution of the interstellar medium. Many large-scale surveys of the Galactic plane have ...
    • SIMBA survey of southern high-mass star forming regions - I. Physical parameters of the 1.2-mm/IRAS sources 
      Faúndez, S.; Bronfman Aguiló, Leonardo; Garay Brignardello, Guido; Chini, R.; Nyman, L.-Å.; May Humeres, Jorge (E D P SCIENCES, 2004-10)
      We report the results of a 1.2 mm continuum emission survey toward 146 IRAS sources thought to harbour high-mass star forming regions. The sources have FIR colors typical of UCHII regions and were detected in the CS(2 --> ...
    • SiO outflows in high-mass star forming regions: A potential chemical clock? 
      López Sepulcre, A.; Walmsley, C. M.; Cesaroni, R.; Codella, C.; Schuller, F.; Bronfman Aguiló, Leonardo; Carey, S. J.; Menten, K. M.; Molinari, S.; Noriega Crespo, A. (EDP SCIENCES, 2011-02)
      Context. Some theoretical models propose that O-B stars form via accretion, in a similar fashion to low-mass stars. Jet-driven molecular outflows play an important role in this scenario, and their study can help to understand ...
    • Spatially resolved near-infrared spectroscopy of the massive star-forming region IRAS 19410+2336 
      Martín Hernández, N. L.; Bik, A.; Puga, E.; Nürnberger, D. E. A.; Bronfman Aguiló, Leonardo (EDP SCIENCES S A, 2008-10)
      Aims. IRAS 19410+2336 is a young massive star forming region with an intense outflow activity. Outflows are frequently studied in the near-infrared (NIR) since the H2 emission in this wavelength range often traces the ...
    • Spiral structure in the outer galactic disk. I. The third galactic quadrant 
      Vázquez, Rúben A.; May, Jorge; Carraro, Giovanni; Bronfman Aguiló, Leonardo; Moitinho, André; Baume, Gustavo (UNIV CHICAGO PRESS, 2008-01-10)
      We combine optical and radio observations to trace the spiral structure in the Third Quadrant of the Milky Way. The optical observations consist of a large sample of young open clusters and associations, whereas the radio ...
    • Star formation laws in both galactic massive clumps and external galaxies: extensive study with dust coninuum, ... 
      Liu, Tie; Kim, Kee-Tae; Yoo, Hyunju; Liu, Sheng-yuan; Tatematsu, Ken'ichi; Qin, Sheng-Li; Zhang, Qizhou; Wu, Yuefang; Wang, Ke; Goldsmith, Paul; Juvela, Mika; Lee, Jeong-Eun; Tóth, L. Viktor; Mardones Pérez, Diego; Garay Brignardello, Guido; Bronfman Aguiló, Leonardo; Cunningham, Maria; Li, Di; Lo, Nadia; Ristorcelli, Isabelle; Schnee, Scott (The American Astronomical Society, 2016-10-01)
      We observed 146 Galactic clumps in HCN (4-3) and CS (7-6) with the Atacama Submillimeter Telescope Experiment 10 m telescope. A tight linear relationship between star formation rate and gas mass traced by dust continuum ...