Browsing by Author "01a14ca1-e9c5-4947-98c0-e0886235100c"

Now showing items 1-7 of 7

    • A megacam survey of outer halo satellites. I. description of the survey 
      Muñoz Vidal, Ricardo Rodrigo; Cote, Patrick; Santana, Felipe; Geha, Marla; Simón, Joshua D.; Oyarzún, Grecco A.; Stetson, Peter B.; Djorgovski, S. G. (IOP Publishing, 2018-06-10)
      We describe a deep, systematic imaging study of satellites in the outer halo of the Milky Way. Our sample consists of 58 stellar overdensities-i.e., substructures classified as either globular clusters, classical dwarf ...
    • A megacam survey of outer halo satellites. III. Photometric and structural parameters 
      Muñoz Vidal, Ricardo Rodrigo; Cote, Patrick; Santana, Felipe; Geha, Marla; Simón, Joshua D.; Oyarzún, Grecco A.; Stetson, Peter B.; Djorgovski, S. G. (The American Astronomical Society, 2018-06-10)
      We present structural parameters from a wide-field homogeneous imaging survey of Milky Way satellites carried out with the MegaCam imagers on the 3.6 m Canada-France-Hawaii Telescope and 6.5 m Magellan-Clay telescope. Our ...
    • A Megacam Survey of Outer Halo Satellites. VI. The Spatially resolved Starformation History of the Carina ... 
      Santana Rojas, Felipe; Muñoz Vidal, Ricardo Rodrigo; de Boer, T. J. L.; Simon, Joshua D.; Geha, Marla; Coté, Patrick; Guzmán Fernández, Andrés; Stetson, Peter B.; Djorgovski, S. George (IOP, 2016)
      We present the spatially resolved star-formation history (SFH) of the Carina dwarf spheroidal galaxy, obtained from deep, wide-field g and r imaging and a metallicity distribution from the literature. Our photometry covers ...
    • A MegaCam Survey of Outer Halo Satellites. VII. A Single Sérsic Index versus Effective Radius Relation for ... 
      Marchi-Lasch, Sebastián; Muñoz Vidal, Ricardo Rodrigo; Santana, Felipe A.; Carballo Bello, Julio A.; Chanamé, Julio; Geha, Marla; Simon, Joshua D.; Stetson, Peter B.; Djorgovski, S. G. (Institute of Physics Publishing, 2019)
      In this work, we use structural properties of the Milky Way's outer halo (R G > 25 kpc) satellites (dwarf spheroidal galaxies, ultra-faint dwarf (UFD) galaxies and globular clusters (GCs)) derived from deep, wide-field, ...
    • Multiple chemodynamic stellar populations of the Ursa Minor dwarf spheroidal galaxy 
      Pace, Andrew B.; Kaplinghat, Manoj; Kirby, Evan; Simon, Joshua D.; Tollerud, Erik; Muñoz Vidal, Ricardo Rodrigo; Côte, Patrick; Djorgovski, S. G.; Geha, Marla (Oxford University Press, 2020)
      We present a Bayesian method to identify multiple (chemodynamic) stellar populations in dwarf spheroidal galaxies (dSphs) using velocity, metallicity, and positional stellar data without the assumption of spherical symmetry. ...
    • The SAGA survey. I. satellite galaxy populations around eight milky way analogs 
      Geha, Marla; Wechsler, Risa H.; Mao, Yao Yuan; Tollerud, Erik J.; Weiner, Benjamin; Bernstein, Rebecca; Hoyle, Ben; Marchi, Sebastián; Marshall, Phil J.; Muñoz Vidal, Ricardo Rodrigo; Lu, Yu (IOP Publishing Ltd, 2017)
      We present the survey strategy and early results of the "Satellites Around Galactic Analogs" (SAGA) Survey. The SAGA. Survey's goal is to measure the distribution of satellite galaxies around 100 systems analogous to the ...
    • Variations in the width, density, and direction of the Palomar 5 tidal tails 
      Bonaca, Ana; Pearson, Sarah; Price-Whelan, Adrian; Dey, Arjun; Geha, Marla; Kallivayalil, Nitya; Moustakas, John; Muñoz Vidal, Ricardo; Myers, Adam; Schlegel, David; Valdés, Francisco (IOP, 2020)
      Stars that escape globular clusters form tidal tails that are predominantly shaped by the global distribution of mass in the Galaxy, but also preserve a historical record of small-scale perturbations. Using deep grz ...