Browsing by Author "Ruiz González, María Teresa"

Now showing items 21-40 of 47

    • Espectroscopia de transmisión con telescopios terrestres: El caso de HD209458B 
      Astudillo Defru, Nicola (Universidad de Chile, 2011)
      Este trabajo de investigaci on se enmarca en el t opico de planetas extrasolares y la caracterizaci on de sus atm osferas. A la fecha, m as de 600 exoplanetas han sido descubiertos mediante distintas t ecnicas, siendo la ...
    • Estudio Espectroscópico de Subestructuras del Halo Galáctico Usando Estrellas RR Lyrae del Proyecto Quest 
      Duffau Erazo, Sonia Valeria (Universidad de ChilePrograma Cybertesis, 2008)
    • Eta Carinae's 2014.6 spectroscopic event: Clues to the long-term recovery from its Great Eruption 
      Mehner, A.; Davidson, K.; Humphreys, R. M.; Walter, F. M.; Baade, D.; Wit, W. J. de; Martin, J.; Ishibashi, K.; Rivinius, T.; Martayan, C.; Ruiz González, María Teresa; Weis, K. (ESO, 2015)
      Aims. Every 5.5 years, eta Car's light curve and spectrum change remarkably across all observed wavelength bands. These so-called spectroscopic events are most likely caused by the close approach of a companion. We compare ...
    • Faint emission lines in the Galactic HII regions M16, M20 and NGC 3603 
      García Rojas, Jorge; Esteban, C.; Peimbert, M.; Costado, M. T.; Rodríguez, M.; Peimbert, A.; Ruiz González, María Teresa (BLACKWELL PUBLISHING, 2006-05-01)
      We present deep echelle spectrophotometry of the Galactic H-II regions M16, M20 and NGC 3603. The data have been taken with the Very Large Telescope Ultraviolet-Visual Echelle Spectrograph in the 3100-10400 angstrom range. ...
    • Millimagnitude optical photometry for the transiting planetary candidate OGLE-TR-109 
      Fernández, José Miguel; Minniti, Dante; Pietrzynski, Grzegorz; Gieren, Wolfgang; Ruiz González, María Teresa; Zoccali, Manuela; Udalski, Andrzej; Szeifert, Thomas (UNIV CHICAGO PRESS, 2006-08-10)
      We present precise V-band photometry for the low-amplitude transit candidate star OGLE-TR-109. This is an extreme case among the transiting candidates found by the OGLE group because of the early spectral type of the star ...
    • Millimagnitude photometry for transiting extrasolar planetary candidates - V. Follow-up of 30 OGLE transits. ... 
      Pietrukowicz, P.; Minniti, D.; Díaz, R. F.; Fernández, J. M.; Zoccali, M.; Gieren, W.; Pietrzynski, G.; Ruiz González, María Teresa; Udalski, A.; Szeifert, T.; Hempel Leyton, Marie Claire (ESO, 2010)
      Aims. We used VLT/VIMOS images in the V band to obtain light curves of the extrasolar planetary transits OGLE-TR-111 and OGLE-TR-113 and the candidate planetary transits: OGLE-TR-82, OGLE-TR-86, OGLE-TR-91, OGLE-TR-106, ...
    • The multiwavelength survey by Yale-Chile (MUSYC): Survey design and deep public UBVRIZ ' images and catalogs ... 
      Gawiser, Eric; van Dokkum, Pieter; Herrera, David; Maza Sancho, José; Castander, Francisco; Infante, Leopoldo; Lira Teillery, Paulina; Quadri, Ryan; Toner, Ruth; Treister, Ezequiel; Urry, C. Megan; Altmann, Martin; Assef, Roberto; Christlein, Daniel; Coppi, Paolo S.; Durán, María Fernanda; Franx, Marijn; Galaz, Gaspar, 1967-; Huerta, Leonor; Liu, Charles; López Morales, Sebastián; Méndez Bussard, René Alejandro; Moore, David C.; Rubio López, Mónica; Ruiz González, María Teresa; Toft, Sune; Yi, Sukyoung K. (UNIV CHICAGO PRESS, 2006-01)
      We present UBVRIz' optical images taken with MOSAIC on the CTIO 4 m telescope of the 0.32 deg(2) Extended Hubble Deep Field-South. This is one of four fields comprising the MUSYC survey, which is optimized for the study ...
    • A new outburst in the extraordinary central star of LMC-N66 
      Peña, Miriam; Ruiz González, María Teresa; Rojo, Patricio; Torres-Peimbert, Silvia; Hamann, Wolf-Rainer (Univ Cgicago Press, 2008-06-20)
      This is the first report on the new outburst presented by the central star of the LMC-N66 nebula. This object was classified as a planetary nebula; however, its true nature is under debate. In the period 1955–1990 the ...
    • OGLE-TR-211 - a new transiting inflated hot Jupiter from the OGLE survey and ESO LP666 spectroscopic follow-up ... 
      Udalski, A.; Pont, F.; Naef, D.; Melo, C.; Bouchy, F.; Santos, N. C.; Moutou, C.; Díaz, R. F.; Gieren, W.; Gillón, M.; Hoyer, Sergio; Mayor, M.; Mazeh, T.; Minniti, D.; Pietrzyński, G.; Queloz, D.; Ramírez, S.; Ruiz González, María Teresa; Tamuz, O.; Udry, S.; Zoccali, Manuela; Kubiak, M.; Szymański, M. K.; Soszyński, I.; Szewczyk, O.; Ulaczyk, K.; Wyrzykowski, Ł. (EDP SCIENCES S A, 2008-04)
      We present results of the photometric campaign for planetary and low-luminosity object transits conducted by the OGLE survey in 2005 season (Campaign #5). About twenty most promising candidates discovered in these data ...
    • On the interpretation of high-velocity white dwarfs as members of the galactic halo 
      Bergeron, P.; Ruiz González, María Teresa; Hamuy Wackenhut, Mario; Leggett, K.; Currie, M. J.; Lajoie, C.-P.; Dufour, P. (2005-06-01)
      A detailed analysis of 32 of the 38 halo white dwarf candidates identified by Oppenheimer et al. is presented, based on model atmosphere fits to observed energy distributions built from optical BVRI and infrared JHK CCD ...
    • Procesos de Meteorización en Condritos Ordinarios del Desierto de Atacama, Norte de Chile: Nuevos Antecedentes ... 
      Valenzuela Picón, Edith Millarca (Universidad de ChileCyberDocs, 2011)
      Una completa caracterización de los condritos ordinarios (CO’s) del desierto de Atacama, II región, Chile, fue realizada en el marco de esta tesis doctoral, provenientes de 2 localidades: Pampa de Mejillones (PM), en la ...
    • A proper motion survey. I. hyades and UMa moving groups 
      Méndez Bussard, René Alejandro; Ruiz González, María Teresa; Maza Sancho, José; Wischnjewsky, M. (1992-03)
      We analyze the results of a proper motion survey in a couple of ESO R 5° X 5° fields, finding evidence for faint (and primarily red) members of the Hyades and UMa moving groups. By the velocity ellipsoid of the Hyades and ...
    • PROPER MOTIONS IN THE SOUTHERN ESO AREA-207, AREA-439, AND AREA-440 
      Ruiz González, María Teresa; Takamiya, Marianne Y.; Méndez Bussard, René Alejandro; Maza Sancho, José; Wishnjewsky, Marina (AMER INST PHYSICS, 1993-12)
    • PROPER-MOTION SURVEY .1. COMMON-PROPER-MOTION SYSTEMS IN ESO AREAS 439 AND 440 
      Ruiz González, María Teresa; Maza Sancho, José (AMER INST PHYSICS, 1990-03)
    • SN 1992K - a twin to the subluminous type ia SN 1991bg 
      Hamuy Wackenhut, Mario; Phillips, M. M.; Maza Sancho, José; Suntzeff, Nicholas B.; Della Valle, Massimo; Danzinger, J.; Antezana, Roberto; Wischnjewsky, M.; Avilés, Roberto; Schommer, Robert A.; Kim, Y. C.; Wells, Lisa A.; Ruiz González, María Teresa; Prosser, Charles F.; Krzeminski, W.; Baylin, Charles D.; Hartigan, Patrick; Hughes, Joanne (1994-12)
      We present spectroscopic and photometric data for SN 1992K, a Type Ia event found in the course of the Calan/Tololo supernova survey. These data show an impressive similarity with the spectra and light curves of the atypical ...
    • Spectrophotometric data of the central star of the large Magellanic Cloud planetary nebula N66: Quantitative ... 
      Peña, M.; Hamann, W. R.; Koesterke, L.; Maza Sancho, José; Méndez, R. H.; Peimbert, M.; Ruiz González, María Teresa; Torres Peimbert, S. (1997-12-10)
      Hubble Space Telescope, IUE, and ground-based observations of the central star of the LMC planetary nebula N66 (CS N66), obtained in di†erent epochs, are presented. Since 1990, CS N66 has displayed remarkable short- and ...
    • SPECTROPHOTOMETRY OF THE NEW COMMON-PROPER-MOTION PAIR ESO 440-55A/55B 
      Ruiz González, María Teresa; Maza Sancho, José (AMER INST PHYSICS, 1988-12)
    • The sub-stellar birth rate from UKIDSS 
      Day Jones, A. C.; Marocco, F.; Pinfield, D. J.; Zhang, Z. H.; Burningham, B.; Deacon, N.; Ruiz González, María Teresa; Gallardo, J.; Jones, H. R. A.; Lucas, P. W.; Jenkins, James Stewart; Gomes, J.; Folkes, S. L.; Clarke, J. R. A. (Oxford University Press on behalf of the Royal Astronomical Society, 2013)
      We present a new sample of mid-L to mid-T dwarfs with effective temperatures of 1100– 1700 K selected from the UKIDSS Large Area Survey (LAS) and confirmed with infrared spectra from X-shooter/Very Large Telescope . This ...
    • The "666" collaboration on OGLE transits I. Accurate radius of the planets OGLE-TR-10b and OGLE-TR-56b with ... 
      Pont, F.; Moutou, C.; Gillón, M.; Udalski, A.; Bouchy, F.; Fernandes, J. M.; Gieren, W.; Mayor, M.; Mazeh, T.; Minniti, D.; Melo, C.; Naef, D.; Pietrzynski, Grzegorz; Queloz, D.; Ruiz González, María Teresa; Santos, N. C.; Udry, S. (2007)
      Transiting planets are essential to study the structure and evolution of extra-solar planets. For that purpose, it is important to measure precisely the radius of these planets. Here we report new high-accuracy photometry ...
    • The chemical composition of the Galactic HII regions M8 and M17. A revision based on deep VLT echelle ... 
      García Rojas, Jorge; Esteban, C.; Peimbert, A.; Rodríguez, M.; Peimbert, M.; Ruiz González, María Teresa (2007)
      We present new echelle spectrophotometry of the Galactic H II regions M8 and M17. The data have been taken with the VLT UVES echelle spectrograph in the 3100 to 10400 A range. We have measured the intensities of 375 and ...