Browsing by Title Artículos de revistas

Now showing items 5019-5038 of 7550

    • Photochemical deposition, characterization and optical properties of thin films of ThO2 
      Huentupil, Y.; Cabello-Guzmán, G.; Chornik, B.; Arancibia R., Elizabeth; Buono-Core, G. (Elsevier Ltd, 2019)
      Thorium oxide thin films were successfully prepared by direct UV irradiation of amorphous films composed of thorium(IV) β-diketonate precursor complexes on Si(100) and quartz substrates. The ThO2 films were characterized ...
    • A photochemical proposal for the preparation of ZnAl2O4 and MgAl2O4 thin films from beta-diketonate complex ... 
      Cabello, G.; Lillo, L.; Caro, C.; Seguel, M.; Sandoval, C.; Buono-Core, Gonzalo E.; Chornik Aberbuch, Boris; Flores Carrasco, Marcos (Elsevier, 2016)
      ZnAl2O4 and MgAl2O4 thin films were grown on Si(100) and quartz plate substrates using a photochemical method in the solid phase with thin films of beta-diketonate complexes as the precursors. The films were deposited by ...
    • Photochemical sensitivity to emissions and local meteorology in Bogotá , Santiago, and Sa~ o Paulo: an ... 
      Seguel Albornoz, Rodrigo José; Gallardo Klenner, Laura Eleonor Gabriela; Osses, Mauricio; Rojas, Néstor Y.; Nogueira, Thiago; Menares Menares, Camilo Fernando; Andrade, Maria de Fatima; Belalcázar, Luis C.; Carrasco, Paula; Eskes, Henk; Fleming, Zoë L.; Huneeus Lagos, Nicolás Jorge; Ibarra Espinosa, Sergio; Landulfo, Eduardo; Leiva, Manuel; Mangones, Sonia C.; Morais, Fernando G.; Moreira, Gregori A.; Pantoja, Nicolás; Parraguez Cerda, Santiago Nicolás; Rojas, Jhojan P.; Rondanelli Rojas, Roberto Francisco; Da Silva Andrade, Izabel; Toro, Richard; Yoshida, Alexandre C. (University of California Press, 2022)
      This study delves into the photochemical atmospheric changes reported globally during the pandemic by analyzing the change in emissions from mobile sources and the contribution of local meteorology to ozone (O-3) and ...
    • Photochemical synthesis of AZrO3-x thin films (A=Ba, Ca and Sr) and their characterization 
      Cabello, G.; Lillo, L.; Caro, C.; Buono Core, G. E.; Chornik Aberbuch, Boris; Flores Carrasco, Marcos; Carrasco, C.; Rodríguez, C. A. (Elsevier, 2014)
      (Ba, Ca, Sr)ZrO3-X thin films were prepared by a photochemical method using thin films of B-diketonate complexes as precursors. The photolysis of these films induces the fragmentation of the 2,2,6,6-tetramethyl-3,5-heptanedionate ...
    • A photodissociated region associated with the compact Hıı region near GGD 12-15 
      Gómez, Y.; Lebrón, M.; Rodríguez, L. F.; Garay Brignardello, Guido; Lizano, S.; Escalante, V.; Cantó, J. (The American Astronomical Society, 1998-08-10)
      We present Very Large Array (VLA) continuum (2, 3.6, and 20 cm) and line (H I 21 cm, C92a, and H92a) observations toward the obscured cometary-like H II region located near the optical nebulosities GGD 12È15. We Ðnd that ...
    • Photoevaporated disks around massive young stars 
      Lugo, Jorge; Lizano, Susana; Garay Brignardello, Guido (UNIV CHICAGO PRESS., 2004-10-20)
      We present a parametric model of an isothermal photoevaporating wind from a Keplerian disk around a young massive star. The wind is produced by high-energy photons (h >13:6 eV) from the massive central star that ionize ...
    • Photoevaporated flows from H II regions 
      Lizano, Susana; Cantó, Jorge; Garay Brignardello, Guido; Hollenbach, David (UNIV CHICAGO PRESS., 1996-09-10)
      We model the dynamics of a fast, isothermal ionized stellar wind loaded with mass injected from photoevaporated globules surrounding the massive star. The effect of the mass injection is to produce a density profile such ...
    • Photoluminescence from c-axis oriented ZnO films synthesized by sol-gel with diethanolamine as chelating agent 
      Marín, Óscar; Tirado, Mónica; Budini, Nicolás; Mosquera, Edgar; Figueroa, Carlos; Comedi, David (Elsevier, 2016)
      ZnO films were synthesized on SiO2/Si substrates through the sol-gel technique using diethanolamine as chelating agent and annealed in Ar + O-2 atmospheres with different O-2 flow-rates in the 10-100 sccm range. Samples ...
    • Photoluminescence in silicon/silicon oxide films produced by the Pulsed Electron Beam Ablation technique 
      Araya, M.; Díaz Droguett, Donovan Enrique; Ribeiro, M.; Albertin, K. F.; Avila, J.; Fuenzalida, V. M.; Espinoza, R.; Criado, D. (Elsevier, 2012)
      In this work we report studies of the photoluminescence emission in samples based on Si/SiOx films deposited by the Pulsed Electron Beam Ablation (PEBA) technique. The samples were prepared at room temperature using ...
    • Photometric and Spectroscopic Properties of Type Ia Supernova 2018oh with Early Excess Emission from the ... 
      Li, W.; Wang, X.; Vinkó, J.; Mo, J.; Hosseinzadeh, G.; Sand, D. J.; Zhang, J.; Lin, H.; Zhang, T.; Wang, L.; Zhang, J.; Chen, Z.; Xiang, D.; Rui, L.; Huang, F.; Li, X.; Zhang, X.; Li, L.; Baron, E.; Derkacy, J. M.; Zhao, X.; Sai, H.; Zhang, K.; Wang, L.; Howell, D. A.; McCully, C.; Arcavi, I.; Valenti, S.; Hiramatsu, D.; Burke, J.; Rest, A.; Garnavich, P.; Tucker, B. E.; Narayan, G.; Shaya, E.; Margheim, S.; Zenteno, A.; Villar, A.; Dimitriadis, G.; Foley, R. J.; Pan, Y.-C.; Coulter, D. A.; Fox, O. D.; Jha, S. W.; Jones, D. O.; Kasen, N. D.; Kilpatrick, C. D.; Piro, A. L.; Riess, A. G.; Rojas Bravo, C.; Shappee, B. J.; Holoien, T. W.-S.; Stanek, K. Z.; Drout, M. R.; Auchettl, K.; Kochanek, C. S.; Brown, J. S.; Bose, S.; Bersier, D.; Brimacombe, J.; Chen, P.; Dong, S.; Holmbo, S.; Muñoz, J. A.; Mutel, R. L.; Post, R. S.; Prieto, J. L.; Shields, J.; Tallon, D.; Thompson, T. A.; Vallely, P. J.; Villanueva, S.; Smartt, S. J.; Smith, K. W.; Chambers, K. C.; Flewelling, H. A.; Huber, M. E.; Magnier, E. A.; Waters, C. Z.; Schultz, A. S. B.; Bulger, J.; Lowe, T. B.; Willman, M.; Sárneczky, K.; Pál, A.; Wheeler, J. C.; Bódi, A.; Bognár, Zs.; Csák, B.; Cseh, B.; Csörnyei, G.; Hanyecz, O.; Ignácz, B.; Kalup, Cs.; Könyves-Tóth, R.; Kriskovics, L.; Ordasi, A.; Rajmon, I.; Sódor, A.; Szabó, R.; Szakáts, R.; Zsidi, G.; Milne, P.; Andrews, J. E.; Smith, N.; Bilinski, C.; Brown, P. J.; Nordin, J.; Williams, S. C.; Galbany, Lluis; Palmerio, J.; Hook, I. M.; Inserra, C.; Maguire, K.; Cartier, Régis; Razza, A.; Gutiérrez, C. P.; Hermes, J. J.; Reding, J. S.; Kaiser, B. C.; Tonry, J. L.; Heinze, A. N.; Denneau, L.; Weiland, H.; Stalder, B.; Barentsen, G.; Dotson, J.; Barclay, T.; Gully-Santiago, M.; Hedges, C.; Cody, A. M.; Howell, S.; Coughlin, J.; Van Cleve, J. E.; Vinícius de Miranda Cardoso, J.; Larson, K. A.; McCalmont-Everton, K. M.; Peterson, C. A.; Ross, S. E.; Reedy, L. H.; Osborne, D.; McGinn, C.; Kohnert, L.; Migliorini, L.; Spencer, B.; Labonde, C.; Castillo, G.; Beerman, G.; Steward, K.; Hanley, M.; Larsen, R.; Gangopadhyay, R.; Kloetzel, R.; Weschler, T.; Nystrom, V.; Moffatt, J.; Redick, M.; Griest, K.; Packard, M.; Muszynski, M.; Kampmeier, J.; Bjella, R.; Flynn, S.; Elsaesser, B. (IOP Publishing, 2019)
      Supernova (SN) 2018oh (ASASSN-18bt) is the first spectroscopically confirmed Type Ia supernova (SN Ia) observed in the Kepler field. The Kepler data revealed an excess emission in its early light curve, allowing us to place ...
    • Photometric classification of quasars from RCS-2 using Random Forest 
      Carrasco, D.; Barrientos, L.; Pichara, K.; Anguita, T.; Murphy, D.; Gilbank, D.; Gladders, M.; Yee, H.; Hsieh, B.; López Morales, Sebastián (EDP Sciences, 2015)
      The classification and identification of quasars is fundamental to many astronomical research areas. Given the large volume of photometric survey data available in the near future, automated methods for doing so are ...
    • Photometric parallaxes of Southern high proper motion stars. I. 
      Costa Hechenleitner, Edgardo; Méndez Bussard, René Alejandro (2003)
      Photometric distances derived from VRI photometry are given for 44 high proper motion stars from the Cerro El Roble proper motion surveys of Wroblewski & Torres and Wroblewski & Costa. The observations were carried out ...
    • PHOTOMETRY AND SPECTROSCOPY OF GRB 030329 AND ITS ASSOCIATED SUPERNOVA 2003dh: THE FIRST TWO MONTHS 
      Matheson, Thomas; Garnavich, P. M.; Stanek, k. z.; Bersier, D.; Holland, S. T.; Krisciunas, K.; Caldwell, N.; Berlind, P.; Bloom, J. S.; Bolte, M.; Bonanos, A. Z.; Brown, M. J. I.; Brown, W. R.; Calkins, M. L.; Challis, P.; Chornock, R.; Echevarria, L.; Eisenstein, D. J.; Everett, M. E.; Filippenko, A. V.; Flint, K.; Foley, R. J.; Freedman, D. .L.; Hamuy Wackenhut, Mario; Harding, P.; Hathi, N. P.; Hicken, M.; Hoopes, C.; Impey, C.; Jannuzi, B. T.; Jansen, R. A.; Jha, S.; Kaluzny, J.; Kannappan, S.; Kirshner, R. P.; Latham, D. W.; Lee, J. C.; Leonard, D. .C.; Li, W.; Luhman, K. L.; Martini, P.; Mathis, H.; Maza Sancho, José; Megeath, S. T.; Miller, L. R.; Minniti, D.; Olszewski, E. W.; Papenkova, M.; Phillips, M. M.; Pindor, B.; Sasselov, D. D.; Schild, R.; Schweiker, H.; Spahr, T.; Thomas-Osip, J.; Thompson, I.; Weisz, D.; Windhorst, R.; Zaritsky, D. (IOP PUBLISHING LTD, TEMPLE CIRCUS, TEMPLE WAY,, 2003-12-10)
      We present extensive optical and infrared photometry of the afterglow of gamma-ray burst (GRB) 030329 and its associated supernova (SN) 2003dh over the first two months after detection (2003March 30–May 29 UT). Optical ...
    • Photometry of seven overlooked open clusters in the first and fourth Galactic quadrants 
      Carraro, Giovanni; Janes, Kenneth A.; Costa Hechenleitner, Edgardo; Méndez Bussard, René Alejandro (BLACKWELL, 2006-05-21)
      CCD BVI photometry is presented for seven previously unstudied star clusters projected towards the inner side of the Galaxy: Trumpler 23, Lynga 3, Collinder 307, Ruprecht 134, ESO552SC16, AL 5 and Kronberger 3. Colour-magnitude ...
    • Photometry of the five marginally studied open clusters Collinder 74, Berkeley 27, Haffner 8, NGC 2509, and ... 
      Carraro, Giovanni; Costa Hechenleitner, Edgardo (2007)
      Context. The stellar populations in the outer Galactic disk are a subject of wide interest nowadays. To contribute to a better picture of this part of the Galaxy, we have studied the nature of five marginally investigated ...
    • 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 ...
    • Photonic computing with single and coupled spiking micropillar lasers 
      Pammi, VA; Alfaro-Bittner, K; Clerc, MG; Barbay, S (Institute of Electrical and Electronics Engineers Inc., 2020)
    • Photonic crystal based all-optical half adder: a brief analysis 
      Sivaranjani, R.; Shanmuga Sundar, D.; Sridarshini, T.; Sitharthan, R.; Karthikeyan, M.; Sivanantha Raja, A.; Flores Carrasco, Marcos (IOP Publishing, 2020)
      A photonic crystal (PhC) based optical component paves a path to the upcoming all-optical computer processors. All the components can be realized with the help of PhCs. In particular, optical gates have played a major part ...
    • Photonic flat band dynamics 
      Vicencio Poblete, Rodrigo (Taylor & Francis, 2021)
      During the last decades, researchers of different scientific areas have investigated several systems and materials to suggest new ways of transporting and localizing light. These problems are probably main goals in any ...
    • PHOTOSPHERIC MAGNITUDE DIAGRAMS FOR TYPE II SUPERNOVAE: A PROMISING TOOL TO COMPUTE DISTANCES 
      Rodríguez, Ósmar; Clocchiatti, Alejandro; Hamuy Wackenhut, Mario (The American Astronomical Society, 2014)
      We develop an empirical color-based standardization for Type II supernovae (SNe II), equivalent to the classical surface brightness method given in Wesselink. We calibrate this standardization using SNe II with host galaxy ...