Browsing by Title Facultad de Ciencias Físicas y Matemáticas

Now showing items 2196-2215 of 20602

    • Astrometric and photometric accuracies in high contrast imaging: The SPHERE speckle calibration tool (SpeCal) 
      Galicher, R.; Boccaletti, A.; Mesa, D.; Delorme, P.; Gratton, R.; Langlois, Maud; Lagrange, Anne Marie; Maire, A.-L.; Le Coroller, H.; Chauvin, G.; Biller, Beth; Cantalloube, Faustine; Janson, Markus; Lagadec, E.; Meunier, N.; Vigan, Arthur; Hagelberg, Janis; Bonnefoy, Mickael; Zurlo, Alice; Rocha, S.; Maurel, D.; Jaquet, M.; Buey, T.; Weber, L. (EDP Sciences, 2018-07-19)
      Context. The consortium of the Spectro-Polarimetric High-contrast Exoplanet REsearch installed at the Very Large Telescope (SPHERE/VLT) has been operating its guaranteed observation time (260 nights over five years) since ...
    • Astrometric precision spectroscopy: Experimental development of a dual-frequency laser synthesizer based ... 
      Parvex Pichaida, Taky (Universidad de Chile, 2018)
      La tecnología de terahercios se encuentra en un estado de desarrollo atrasado con respecto a las tecnologías usadas en las bandas adyacentes, como la óptica infrarroja o la electróni- ca de microondas. En particular, no ...
    • Astrometría desde un enfoque Bayesiano 
      Echeverría Solís, Alex Mauricio (Universidad de Chile, 2016)
      En la Astronomía ha habido un salto cuantitativo gigantesco desde el nacimiento de la tecnología CCD y las imágenes digitales. A pesar de ello, todavía existe un espacio de mejora en lo que respecta a las técnicas para ...
    • Astronomía contemporánea 
      Maza Sancho, José (Ediciones B, 2009)
      Hace cuarenta años, el hombre descendió por primera vez en la Luna. Grandes avances tecnológicos han hecho posible la exploración del sistema solar. Naves automáticas han visitado desde el Sol hasta Neptuno. Poderosos ...
    • Astronomy - The universe measured with a comb 
      López Morales, Sebastián (AMER ASSOC ADVANCEMENT SCIENCE, 2008-09-05)
      A technique for wavelength calibration promises to revolutionize observational astrophysics, in areas including planet searches and cosmology.
    • Asymmetric counter propagation of domain walls 
      Andrade Silva, I.; Clerc Gavilán, Marcel; Odent, V. (Elsevier, 2016)
      Far from equilibrium systems show different states and domain walls between them. These walls, depending on the type of connected equilibria, exhibit a rich spatiotemporal dynamics. Here, we investigate the asymmetrical ...
    • Asymmetric counterpropagating fronts without flow 
      Andrade Silva, I.; Clerc Gavilán, Marcel; Odent, V. (American Physical Society, 2015)
      Out-of-equilibrium systems exhibit domain walls between different states. These walls, depending on the type of connected states, can display rich spatiotemporal dynamics. In this Rapid Communication, we investigate the ...
    • An asymmetric explosion as the origin of spectral evolution diversity in type Ia supernovae 
      Maeda, K.; Benetti, S.; Stritzinger, M.; Röpke, F. K.; Folatelli, Gastón; Sollerman, J.; Taubenberger, S.; Nomoto, K.; Leloudas, G.; Hamuy Wackenhut, Mario; Tanaka, M.; Mazzali, Paolo; Elias Rosa, N. (2010-07-01)
      Type Ia supernovae forman observationally uniform class of stellar explosions, in that more luminous objects have smaller declinerates 1. This one-parameter behaviour allows type Ia supernovae to be calibrated as ...
    • Asymmetric features in the protoplanetary disk MWC 758 
      Benisty, Myriam; Juhasz, A.; Boccaletti, A.; Avenhaus, H.; Milli, J.; Thalmann, C.; Dominik, C.; Pinilla, P.; Buenzli, E.; Pohl, A.; Beuzit, J.L.; Birnstiel, T.; Boer, J. de; Bonnefoy, M.; Chauvin, G.; Christiaens, V.; Garufi, A.; Grady, C.; Henning, Thomas; Huelamo, N.; Isella, A.; Langlois, M.; Ménard, Francois; Mouillet, D.; Olofsson, J.; Pantin, E.; Pinte, Christophe; Pueyo, L. (ESO, 2015)
      Context. The study of dynamical processes in protoplanetary disks is essential to understand planet formation. In this context, transition disks are prime targets because they are at an advanced stage of disk clearing and ...
    • Asymmetric free spaces and canonical asymmetrizations 
      Daniilidis, Aris; Sepulcre, Juan Matías; Venegas M., Francisco (Polish Acad Sciences Inst Mathematics-IMPAN, 2021)
      A construction analogous to that of Godefroy-Kalton for metric spaces allows one to embed isometrically, in a canonical way, every quasi-metric space (X, d) in an asymmetric normed space F-a (X, d) (its quasi-metric free ...
    • Asymmetric magnetic dots: A way to control magnetic properties 
      Vargas, N. M.; Allende, S.; Leighton, B.; Escrig, J.; Mejía López, J.; Altbir, D.; Schuller, Ivan K. (AMER INST PHYSICS, CIRCULATION & FULFILLMENT DIV, 2011-04-01)
      We have used Monte Carlo simulations to investigate the magnetic properties of asymmetric dots as a function of their geometry. The asymmetry of round dots is produced by cutting off a fraction of the dot and is characterized ...
    • Asymmetrical vibrational energy propagation through double or single bonds of small organic molecules. An ... 
      Miño-Galaz, Germán; Gonzalez, Jose Mauricio; Staforelli, Juan Pablo; Gutierrez, Gonzalo (Elsevier B.V., 2019)
      The present study evaluates the vibrational energy propagation from an O[dbnd]C stretching through the double or single bonds of two small carboxamide molecules. The results show that double bonding facilitates vibrational ...
    • Asymmetry dependence of Gogny-based optical potential 
      Blanchon, G.; Dupuis, M.; Bernard, R. N.; Arellano Sepúlveda, Hugo (Springer, 2017)
      An analysis of neutron and proton scattering off 40,48Ca has been carried out. Real and imaginary potentials have been generated using the Nuclear Structure Method (NSM) for scattering with the Gogny D1S nucleon-nucleon ...
    • Asymptomatic papule lesions on the cheek Lesión papular asintomática en la mejilla 
      Martínez López, Cristina; Tapia Tudela, Gabriela; Aranibar Lobos, Héctor; Ullrich Gaona, Constanza (Ediciones Doyma, S.L., 2019)
    • Asymptotic analysis relating spectral models in fluid-solid vibrations 
      Conca Rosende, Carlos; Osses Alvarado, Axel; Planchard, Jacques (1998-06)
      An asymptotic study of two spectral models which appear in uid{solid vibrations is presented in this paper. These two models are derived under the assumption that the uid is slightly compressible or viscous, respectively. ...
    • Asymptotic behavior of the expected value of order statistics 
      Romero Yáñez, Matías Ernesto (Universidad de Chile, 2022)
      En este trabajo estudiamos el comportamiento asintótico del valor esperado de los dos estadísticos de orden más grandes. Específicamente, buscamos describir la tasa de crecimiento más rápida posible de su valor esperado, ...
    • Asymptotic behaviour of a Brownian motion on exterior domains 
      Collet, Pierre; Martínez Aguilera, Servet; San Martín Aristegui, Jaime (2000)
      We study the asymptotic behaviour of the transition density of a Brownian motion in D, killed at @D, where Dc is a compact non polar set. Our main result concern dimension d D 2, where we show that the transition density ...
    • Asymptotic Description of a Viscous Fluid Layer 
      Cerda, Enrique; Rojas Cortés, René; Tirapegui Zurbano, Enrique (2000)
      We prove that the exact non local equation derived by the present authors for the temporal linear evolution of the surface of a viscous incompressible fluid reduces asymptotically for high viscosity to a second order ...
    • Asymptotic description of dynamics in plasma and water-waves type models 
      Martínez Martini, María Eugenia (Universidad de Chile, 2021)
      Esta tesis está dedicada al estudio de la dinámica asintótica en varios modelos de fluidos de interés clave. Estos están por un lado relacionados con la ecuación clásica de Schr\"odinger y por otro lado pueden derivarse ...
    • Asymptotic dynamics for the small data weakly dispersive one-dimensional hamiltonian abcd system 
      Kwak, Chulkwang; Muñoz Cerón, Claudio (American Mathematical Society, 2020)
      Consider the Hamiltonian abed system in one dimension, with data posed in the energy space H-1 x H-1. This model, introduced by Bona, Chen, and Saut, is a well-known physical generalization of the classical Boussinesq ...