Now showing items 1-20 of 25

    • Cheng, Cheng; Ibar, Edo; Smail, Ian; Molina, Juan C.; Sobral, David; Escala Astorquiza, Andrés; Best, Philip; Cochrane, Rachel; Gillman, Steven; Swinbank, Mark; Ivison, R. J.; Huang, Jia Sheng; Hughes, Thomas M.; Villard, Eric; Cirasuolo, Michele (Oxford, 2020)
      We present Atacama Large Millimeter/Submillimeter Array (ALMA) continuum observations of a sample of nine star-forming galaxies at redshifts 1.47 and 2.23 selected from the High-z Emission Line Survey (HiZELS). Four galaxies ...
    • Leroy, Adam K.; Hughes, Annie; Schruba, Andreas; Rosolowsky, Erik; Blanc Mendiberri, Guillermo; Bolatto, Alberto D.; Colombo, Darío; Escala Astorquiza, Andrés; Kramer, Carsten; Diederik Kruijssen, J. M.; Meidt, Sharon; Pety, Jerome; Querejeta, Miguel; Sandstrom, Karin; Schinnerer, Eva; Sliwa, Kazimierz; Usero, Antonio (IOP Publishing, 2016)
      The cloud-scale density, velocity dispersion, and gravitational boundedness of the interstellar medium (ISM) vary within and among galaxies. In turbulent models, these properties play key roles in the ability of gas to ...
    • Leroy, Adam; Hughes, Annie; Schruba, Andreas; Rosolowsky, Erik; Blanc Mendiberri, Guillermo; Bolatto, Alberto; Colombo, Dario; Escala Astorquiza, Andrés; Kramer, Carsten; Diederik Kruijssen, J. M. (The American Astronomical Society, 2016-11-01)
      The cloud-scale density, velocity dispersion, and gravitational boundedness of the interstellar medium (ISM) vary within and among galaxies. In turbulent models, these properties play key roles in the ability of gas to ...
    • Becerra Saavedra, Fernando Felipe (Universidad de Chile, 2012)
      Estudiamos la formación estelar en escalas galácticas y el crecimiento de agujeros negros a través de simulaciones usando el código de grilla adaptativa de refinamiento Enzo. Nuestro estudio se centra en dos de las más ...
    • Valle, Luciano del; Prieto, Joaquín; Escala Astorquiza, Andrés (Wiley, 2019)
      We study the gas accretion and orbital decay of super-massive black hole (SMBH) pairs in the nuclear region of galaxy merger remnants, where a large amount of gas is expected to accumulate. For that purpose, we perform ...
    • Bersten, Melina Cecilia (Universidad de ChileCyberDocs, 2010)
    • Baushev, Anton; Valle Bertoni, Luciano del; Campusano Brown, Luis; Escala Astorquiza, Andrés; Muñoz Vidal, Ricardo Rodrigo; Palma Quilodrán, Gonzalo (IOP Publishing, 2017-05)
      Galaxy observations and N-body cosmological simulations produce conflicting dark matter halo density pro files for galaxy central regions. While simulations suggest a cuspy and universal density pro file (UDP) of this ...
    • Olguín Choupay, Fernándo Andrés (Universidad de Chile, 2012)
      Estudiamos la emisión continua de polvo de 17 núcleos densos masivos buscando caracterizar etapas tempranas de formación de estrellas masivas. Para ello elegimos fuentes con L > 1 × 10⁴ L_sol satisfaciendo el criterio de ...
    • Valle Bertoni, Luciano Noe del (Universidad de Chile, 2015)
      En el contexto del modelo de formacion jerárquico, las galaxias son esculpidas por una secuencia de colisiones y eventos de acreción. En algunas de estas colisiones los núcleos de cada galaxia migran a la región central ...
    • Valle, L. del; Escala Astorquiza, Andrés (Wiley & Sons, 2015)
      Motivated by the theoretical and observational evidence that after a major merger of gas-rich galaxies a massive gaseous disk with a SMBH binary will be formed in the nuclear region of the remnant, we study the interaction ...
    • Escala Astorquiza, Andrés; Becerra, Fernando; Del Valle, Fernando; Castillo, Esteban (IOP PUBLISHING LTD, 2013-06-20)
      We study the gravitational stability of gaseous streams in the complex environment of a galaxy merger, because mergers are known to be places of ongoing massive cluster formation and bursts of star formation. We find ...
    • Prieto, Joaquín; Escala Astorquiza, Andrés; Volonteri, Marta; Dubois, Yohan (Institute of Physics Publishing, 2017)
      Using cosmological hydrodynamical simulations, we study the effect of supernova (SN) and active galactic nucleus (AGN) feedback on the mass transport (MT) of gas onto galactic nuclei and the black hole (BH) growth down to ...
    • Guzmán Fernández, Andrés (Universidad de Chile, 2012)
      Uno de los problemas claves en el estudio de la formación de estrellas es determinar si acaso el paradigma de formación de estrellas de baja masa, específicamente, contracción gravitacional y la posterior presencia de un ...
    • Prieto Brito, Joaquín; Escala Astorquiza, Andrés (Royal Astronomical Society, 2016)
      By using Adaptive Mesh Refinement cosmological hydrodynamic N-body zoom-in simulations, with the RAMSES code, we studied the mass transport processes on to galactic nuclei from high redshift up to z ∼6. Due to the large ...
    • Escala Astorquiza, Andrés (American Astronomical Society, 2015)
      We study the functional form of the star-formation lawusing the Vaschy–Buckingham Pi theorem. We find that it should have theform S μ S ˙ G L gas 3 2, where L is a characteristic length that is related to an integration ...
    • Escala Astorquiza, Andrés (The American Astronomical Society, 2015)
      We study the functional form of the star-formation law using the Vaschy–Buckingham Pi theorem. We find that it should have the form Sµ S  ˙ G L gas 3 2, where L is a characteristic length that is related to an integration ...
    • Marinello Batalla, Gabriel Esteban Eugenio (Universidad de Chile, 2011)
      La distribución de galaxias a gran escala define una compleja red de filamentos, murallas y vacíos de galaxias, situándose los cúmulos de galaxias en la intersección de filamentos. A dicha red se la conoce como “Estructura ...
    • Rincón Rivero, Ángel (Universidad de Chile, 2016)
      Cold Dark matter (ΛCDM) models have been remarkably successful to explain the observed large scale structure of our universe on scales of the order of galaxy clusters (≥ 4 Mpc) and above (therefore in this work we consider ...
    • Santana Rojas, Felipe Antonio (Universidad de Chile, 2016)
      En este trabajo presento un estudio acerca de la historia de formación estelar de galaxias del Grupo Local y su aplicación para el caso de la galaxia enana esferoidal, Carina. La primera sección de este trabajo presenta ...
    • Utreras Contreras, José (Universidad de Chile, 2016)
      Estudiamos la formación estelar y el rol de la rotación a escalas galácticas mediante simulaciones numéricas, utilizando el código de grillas adaptativas Enzo. Parte de este trabajo se centra en estudiar tres leyes de ...