Browsing by Author "Méndez Bussard, René Alejandro"

Now showing items 21-37 of 37

    • The proper motion of the large Magellanic Cloud: a reanalysis 
      Pedreros, Mario H.; Costa Hechenleitner, Edgardo; Méndez Bussard, René Alejandro (2006-03)
      We have determined the proper motion (PM) of the Large Magellanic Cloud (LMC) relative to four background quasi-stellar objects, combining data from two previous studies made by our group and new observations carried ...
    • The proper motion of the large magellanic cloud: A reanalysis 
      Pedreros, M. H.; Costa Hechenleitner, Edgardo; Méndez Bussard, René Alejandro (UNIV CHICAGO PRESS, 2006-03)
      We have determined the proper motion ( PM) of the Large Magellanic Cloud (LMC) relative to four background quasi-stellar objects, combining data from two previous studies made by our group and new observations carried out ...
    • 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)
    • Recent star formation in the leading arm of the Magellanic stream 
      Casetti-Dinescu, Dana I.; Moni Bidin, Christian; Girard, Terrence M.; Méndez Bussard, René Alejandro; Vieira, Katherine; Korchagin, Vladimir I.; Van Altena, William F. (The American Astronomical Society, 2014)
      Strongly interacting galaxies undergo a short-lived but dramatic phase of evolution characterized by enhanced star formation, tidal tails, bridges, and other morphological peculiarities. The nearest example of a pair of ...
    • The solar neighborhood. VII. Discovery and characterization of nearby multiples in the Ctio parallax investigation 
      Jao, Wei-Chun; Henry, Todd J.; Subasavage, John P.; Bean, Jacob L.; Costa Hechenleitner, Edgardo; Lanna, Philip A.; Méndez Bussard, René Alejandro (The American Astronomical Society, 2003-01)
      We report the discovery of eight new multiple star systems among 191 stellar systems targeted for parallax determinations in the RECONS (Research Consortium on Nearby Stars) southern parallax program, CTIOPI (Cerro Tololo ...
    • The solar neighborhood. XIV. Parallaxes from the Cerro Tololo inter-american observatory parallax ... 
      Costa Hechenleitner, Edgardo; Méndez Bussard, René Alejandro; Jao, W. C.; Henry, Todd J.; Subasavage, John P.; Brown, Misty A.; Ianna, Philip A.; Bartlett, Jennifer (2005)
      Trigonometric parallaxes, proper motions, and VJ (RI )KC photometry are presented for 31 stars targeted by the Cerro Tololo Inter-American Observatory Parallax Investigation (CTIOPI ), a program of wide scope aimed ...
    • The solar neighborhood. XVI. parallaxes from ctiopi: final results from the 1.5 m telescope program 
      Costa Hechenleitner, Edgardo; Méndez Bussard, René Alejandro; Jao, J. C.; Henry, Todd J.; Subasavage, John P.; Ianna, Philip A. (2006-09)
      Trigonometric parallaxes, proper motions and VJ (RI )KC photometry are given for 25 stars (of which one is a zeroparallax control field) targeted by the Cerro Tololo Inter-American Observatory Parallax Investigation ...
    • The solar neighborhood. XVII. Parallax results from the CTIOPI 0.9 m program: 20 new members of the recons ... 
      Henry, Todd J.; Jao, Wei Chun; Subasavage, John P.; Beaulieu, Thomas D.; Ianna, Philip A.; Costa Hechenleitner, Edgardo; Méndez Bussard, René Alejandro (The Astronomical Journal, 132:2360–2371, 2006 December, 2006)
      Astrometric measurements for 25 red dwarf systems are presented, including the first definitive trigonometric parallaxes for 20 systems within 10 pc of the Sun, the horizon of the RECONS sample. The three nearest systems ...
    • THE SOLAR NEIGHBORHOOD. XVII. PARALLAX RESULTS FROM THE CTIOPI 0.9 m PROGRAM: 20 NEW MEMBERS OF THE RECONS ... 
      Henry, Todd J.; Jao, Wei-Chun; Subasavage, John P.; Beaulieu, Thomas D.; Ianna, Philip A.; Costa Hechenleitner, Edgardo; Méndez Bussard, René Alejandro (The American Astronomical Society, 2006-12)
      Astrometric measurements for 25 red dwarf systems are presented, including the Þrst deÞnitive trigonometric parallaxes for 20 systems within 10 pc of the Sun, the horizon of the RECONS sample. The three nearest systems ...
    • Spectroscopic search for binaries among EHB stars in globular clusters 
      Bidin, C. Moni; Méndez Bussard, René Alejandro; Moehler, S.; Piotto, G.; Recio Blanco, A.; Momany, Y. (INST THEORETICAL PHYSICS ASTRONOMY, 2006)
      We performed a spectroscopic search for binaries among hot horizontal branch stars in globular clusters. We present final results for a sample of 51 stars in NGC 6752 and preliminary results for the first 15 stars analyzed ...
    • Spectroscopy of quest RR Lyrae variables: The new virgo stellar stream 
      Duffau, Sonia; Zinn, Robert; Vivas, A. Katherina; Carraro, Giovanni; Méndez Bussard, René Alejandro; Winnick, Rebeccah; Gallart, Carme (UNIV CHICAGO PRESS, 2006-06-10)
      Eighteen RR Lyrae variables (RRLs) that lie in the "12(h).4 clump" identified by the Quasar Equatorial Survey Team ( QUEST) have been observed spectroscopically to measure their radial velocities and metal abundances. Ten ...
    • THE MULTIWAVELENGTH SURVEY BY YALE-CHILE (MUSYC): SURVEY DESIGN AND DEEP PUBLIC UBVRIz0 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, Martín; Assef, Roberto; Christlein, Daniel; Coppi, Paolo; Durán, María Fernanda; Marijn, Franx; Galaz, Gaspar, 1967-; Huerta, Leonor; Charles, Liu; López Morales, Sebastián; Méndez Bussard, René Alejandro; Moore, David C.; Rubio López, Mónica; Ruiz González, María Teresa; Sune, Toft; Sukyoung K., Yi (IOP Publishing., 2006-01)
      We present UBVRIz0 optical images taken with MOSAIC on the CTIO 4 m telescope of the 0.32 deg2 Extended Hubble Deep Field–South. This is one of four fields comprising the MUSYC survey, which is optimized for the study ...
    • THE PROPER MOTION OF THE MAGELLANIC CLOUDS. II. NEW RESULTS FOR FIVE SMALL MAGELLANIC CLOUD FIELDS 
      Costa Hechenleitner, Edgardo; Méndez Bussard, René Alejandro; Pedreros, Mario H.; Moyano, Maximiliano; Gallart, Carme; Noël, Noelia (IOP PUBLISHING, 2011-04)
      We present new results from a ground-based program to determine the proper motion of the Magellanic Clouds (MCs) relative to background quasars (QSOs), being carried out with the Irenee du Pont 2.5 m telescope at Las ...
    • Three active M dwarfs within 8 pc: L 449-1, L 43-72, and LP 949-15 
      R.-D, Scholz; Lo Curto, G.; Méndez Bussard, René Alejandro; Hambaryan, V.; Costa Hechenleitner, Edgardo; Henry, T. J.; Schwope, A. D. (ESO, 2005)
      Three nearby star candidates were selected as bright 2MASS point sources without associated optical sources, i.e. with potentially large proper motions, subsequently confirmed by multi-epoch optical data from the SuperCOSMOS ...
    • UNSTABLE OBJECTS IN MOLECULAR CLOUD LDN133 
      Gyulbudaghian, A. L.; Méndez Bussard, René Alejandro (Springer, 2013)
      The results of investigation of molecular cloud LDN133 and the unstable objects HHL59, HHL59A, HHL59B and HHL59C connected with it are given. The IR nebula and IR star cluster are also connected with LDN133. It is shown ...
    • WISEP J061135.13–041024.0 AB: A J-band Flux Reversal Binary at the L/T Transition 
      Gelino, Cristopher E.; Smart, R.L.; Marocco, Federico; Kirkpatrick, J. Davy; Cushing, Michael C.; Mace, Gregory N.; Méndez Bussard, René Alejandro; Tinney, C. G.; Jones, Hugh R. A. (The American Astronomical Society, 2014-05-28)
      We present Keck II laser guide star adaptive optics observations of the brown dwarf WISEP J061135.13−041024.0 showing it is a binary with a component separation of 0. 4. This system is one of the six known resolved ...