Browsing by Author "De Gregorio Monsalvo, Itziar"

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    • The 2014 Alma Long Baseline Campaign: An Overview 
      Fomalont, E. B.; Vlahakis, C.; Corder, S.; Remijan, Anthony; Barkats, Denis; Lucas, R.; Hunter, T. R.; Brogan, C. L.; Asaki, Y.; Matsushita, S.; Dent, William R. F.; Hills, R. E.; Phillips, N.; Richards, A. M. S.; Cox, P.; Amestica, R.; Broguiere, D.; Cotton, W.; Hales, Antonio; Hiriart, R.; Hirota, A.; Hodge, J. A.; Impellizzeri, C. M. V; Kern, J.; Kneissl, R.; Liuzzo, E.; Marcelino, N.; Marson, R.; Mignano, A.; Nakanishi, K.; Nikolic, B.; Perez, J. E.; Pérez, L. M.; Toledo, I.; Aladro, R.; Butler, B.; Cortes, J.; Cortes, P.; Dhawan, V.; Di Francesco, J.; Espada, D.; Galarza, F.; Garcia-Appadoo, D.; Guzman-Ramirez, L.; Humphreys, E.; Jung, T.; Kameno, S.; Laing, R. A.; Leon, S.; Mangum, J.; Marconi, G.; Nagai, H.; Nyman, L. A.; Radiszcz, M.; Rodón, J.; Sawada, T.; Takahashi, S.; Tilanus, R. P. J.; van Kempen, T.; Vila Vilaro, B.; Watson, L. C.; Wiklind, T.; Gueth, F.; Tatematsu, Ken’ichi; Wootten, A.; Castro-Carrizo, A.; Chapillon, E.; Dumas, G.; De Gregorio Monsalvo, Itziar; Francke, H.; Gallardo, J.; Garcia, J.; Gonzalez, S.; Hibbard, J.; Hill, T.; Kaminski, T.; Karim, A.; Krips, M.; Kurono, Y.; Lopez, C.; Martin, S.; Maud, L.; Morales, F.; Pietu, V.; Plarre, K.; Schieven, G.; Testi, L.; Videla, L.; Villard, Eric; Whyborn, N.; Zwaan, M. A.; Alves, F.; Andreani, P.; Avison, A.; Barta, M.; Bedosti, F.; Bendo, G.; Bertoldi, F.; Bethermin, M.; Biggs, A.; Boissier, J.; Brand, J.; Burkutean, S.; Casasola, V.; Conway, J.; Cortese, L.; Dabrowski, B.; Davis, T. A.; Diaz Trigo, M.; Fontani, F; Franco-Hernandez, R.; Fuller, G.; Galvan Madrid, R.; Giannetti, A.; Ginsburg, A.; Graves, S. F.; Hatziminaoglou, E.; Hogerheijde, M. R.; Jachym, P.; Jimenez Serra, I.; Karlicky, M.; Klaasen, P.; Kraus, M.; Kunneriath, D.; Lagos, C.; Longmore, S.; Leurini, S.; Maercker, M.; Magnelli, B.; Marti Vidal, I.; Massardi, M.; Maury, A.; Muehle, S.; Muller, S.; Muxlow, T.; O’Gorman, E.; Paladino, R.; Petry, D.; Pineda, J.; Randall, S.; Richer, J. S.; Rossetti, A.; Rushton, A.; Rygl, K. L.; Sanchez Monge, A.; Schaaf, R.; Schilke, P.; Stanke, T.; Schmalzl, M.; Stoehr, F.; Urban, S.; van Kampen, E.; Vlemmings, W.; Wang, K.; Wild, W.; Yang, Y.; Iguchi, S.; Hasegawa, T.; Saito, M.; Inatani, J.; Mizuno, N.; Asayama, S.; Kosugi, G.; Morita, K. -I.; Chiba, K.; Kawashima, S.; Okumura, S. K.; Ohashi, N.; Ogasawara, R.; Sakamoto, S.; Noguchi, T.; Huang, Y. D.; Liu, S.-Y.; Kemper, F.; Koch, P. M.; Chen, M. -T.; Chikada, Y.; Hiramatsu, M.; Iono, Daisuke; Komugi, S.; Kim, J.; Lyo, A.-R.; Muller, E.; Herrera, C.; Miura, R. E.; Ueda, J.; Chibueze, J.; Su, Yu-Nung; Trejo-Cruz, A.; Wang, K.-S.; Kiuchi, H.; Ukita, N.; Sugimoto, M.; Kawabe, Ryohei; Hayashi, M.; Miyama, S.; Ho, P. T. P.; Kaifu, N.; Ishiguro, M.; Beasley, A. J.; Bhatnagar, S.; Braatz III, J. A.; Brisbin, D. G.; Brunetti, N.; Carilli, C.; Crossley, J. H.; D’Addario, L.; Donovan Meyer, J. L.; Emerson, D. T.; Evans, A. S.; Fisher, P.; Golap, K.; Griffith, D. M.; Hale, A. E.; Halstead, D.; Hardy, E. J.; Hatz, M. C.; Holdaway, M.; Indebetouw, R.; Jewell, P. R.; Kepley, A. A.; Kim, D.-C.; Lacy, M. D.; Leroy, A. K.; Liszt, H. S.; Lonsdale, C. J.; Matthews, B.; McKinnon, M.; Mason, B. S.; Moellenbrock, G.; Moullet, A.; Myers, S. T.; Ott, J.; Peck, A. B.; Pisano, J.; Radford, S. J. E.; Randolph, W. T.; Rao Venkata, U.; Rawlings, M. G.; Rosen, R.; Schnee, S. L.; Scott, K. S.; Sharp, N. K; Sheth, K.; Simon, R. S.; Tsutsumi, T.; Wood, S. J. (IOP Publishing, 2015)
      A major goal of the Atacama Large Millimeter/submillimeter Array (ALMA) is to make accurate images with resolutions of tens of milliarcseconds, which at submillimeter (submm) wavelengths requires baselines up to similar ...
    • A search for pre- and proto-brown dwarfs in the dark cloud Barnard 30 with ALMA 
      Huélamo, N.; De Gregorio Monsalvo, Itziar; Palau, A.; Barrado, D.; Bayo, A.; Ruíz González, María Teresa; Zapata, L.; Bouy, H.; Morata, O.; Morales Calderón, M.; Eiroa, C.; Ménard, F. (EDP Sciences, 2017)
      Context.The origin of brown dwarfs is still under debate. While some models predict a star-like formation scenario, others invokea substellar mass embryo ejection, a stellar disk fragmentation, or the photo-evaporation of ...
    • CO(6−5) and [C i](2−1) pointed observations of five protoplanetary disks: Warm gas in HD 142527 
      Casassus Montero, Simón; Hales, A.; De Gregorio Monsalvo, Itziar; Dent, B.; Belloche, A.; Güsten, R.; Ménard, Francois; Hughes, A.M.; Wilner, D.; Salinas, V. (EDP Sciences, 2013-05)
      Context. The molecular gas in protoplanetary disks can be traced with single-dish instruments in low J rotational lines of CO, in systems clear of coincident extended emission. Other rotational lines of CO also sample the ...
    • Dust and gas in the disk of HL TAURI: surface density, dust settling, and dust-to-gas ratio 
      Pinte, Christophe; Dent, William R. F.; Ménard, Francois; Hales, A.; Hill, T.; Cortes, P.; De Gregorio Monsalvo, Itziar (IOP Publishing, 2016)
      The recent ALMA observations of the disk surrounding HL Tau reveal a very complex dust spatial distribution. We present a radiative transfer model accounting for the observed gaps and bright rings as well as radial changes ...
    • Emisión de polvo en núcleos densos masivos 
      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 ...
    • High-resolution observations of the outer disk around T Chamaeleontis: the view from ALMA 
      Huélamo, N.; De Gregorio Monsalvo, Itziar; Macias, E.; Pinte, Christophe; Ireland, M.; Tuthill, P.; Lacour, S. (EDP Sciences, 2015)
      Context. Transitional disks are circumstellar disks with dust gaps thought to be related in some cases to planet formation. They can shed light on the planet formation process by the analysis of their gas and dust properties. ...
    • Molecular Gas Clumps from the Destruction of Icy Bodies in the β Pictoris Debris Disk 
      Dent, William R. F.; Wyatt, M. C.; Roberge, A.; Augereau, J. C.; Casassus Montero, Simón; Corder, C.; Greaves, J. S.; De Gregorio Monsalvo, Itziar; Hales, A.; Jackson, A. P.; Meredith Hughes, A.; Lagrange, Anne Marie; Matthews, B.; Wilner, D. (2014-03-28)
      Many stars are surrounded by disks of dusty debris formed in the collisions of asteroids, comets, and dwarf planets, but is gas also released in such events? Observations at submillimeter wavelengths of the archetypal ...
    • The Circumstellar Disk and Asymmetric Outflow of the EX Lup Outburst System 
      Hales, A. S.; Pérez, S.; Saito, M.; Pinte, C.; Knee, L. B. G.; De Gregorio Monsalvo, Itziar; Dent, B.; López, C.; Plunkett, A.; Cortés, P.; Corder, S.; Cieza, L. (Institute of Physics Publishing, 2018)
      We present Atacama Large Millimeter/submillimeter Array (ALMA) observations at 0farcs3 resolution of EX Lup, the prototype of the EXor class of outbursting pre-main-sequence stars. The circumstellar disk of EX Lup is ...
    • Unveiling the gas-and-dust disk structure in HD 163296 using ALMA observations 
      De Gregorio Monsalvo, Itziar; Ménard, Francois; Dent, W.; Pinte, Christophe; López Saavedra, Celso; Klaassen, C.; Hales, A.; Cortés, P.; Rawlings, M. G.; Tachihara, K.; Testi, L.; Takahashi, S.; Chapillon, E.; Mathews, G.; Juhasz, A.; Akiyama, E.; Higuchi, Aya; Saito, M.; Nyman, L. A.; Phillips, N.; Rodón, J.; Corder, S.; Van Kempen, T. (EDP Sciences, 2013)
      Aims. The aim of this work is to study the structure of the protoplanetary disk surrounding the Herbig Ae star HD 163296. Methods. We used high-resolution and high-sensitivity ALMA observations of the CO(3–2) emission ...
    • Very large array observations of candidate high-mass protostellar objects at 7 millimeters 
      Garay Brignardello, Guido; Rodríguez, Luis F.; De Gregorio Monsalvo, Itziar (2007)
      We present radio-continuum observations at 7 mm made using the Very Large Array toward three massive star-forming regions thought to be in very early stages of evolution, selected from the 2002 sample of Sridharan et al. ...