Browsing by Author "ca30cf62-bfb3-48e7-a407-30ba881fe00a"

Now showing items 1-4 of 4

    • Chemical abundances of main-sequence, turnoff, subgiant, and red giant stars from APOGEE Spectra. I. ... 
      Souto, Diogo; Cunha, Katia; Smith, Verne V.; Santana, Felipe (IOP Publishing Ltd, 2018)
      Detailed chemical abundance distributions for 14 elements are derived for eight high-probability stellar members of the solar metallicity old open cluster M67 with an age of similar to 4 Gyr. The eight stars consist of ...
    • Metallicity and alpha-element abundance gradients along the Sagittarius Stream as seen by APOGEE 
      Hayes, Christian; Majewski, Steven; Hasselquist, Sten; Anguiano, Borja; Shetrone, Matthew; Law, David; Schiavon, Ricardo; Cunha, Katia; Smith, Verne; Beaton, Rachael; Price Whelan, Adrián; Allende Prieto, Carlos; Battaglia, Giuseppina; Bizyaev, Dimitry; Brownstein, Joel; Cohen, Roger; Frinchaboy, Peter; García Hernández, D. A.; Lacerna, Iván; Lane, Richard; Meszaros, Szabolcs; Moni Bidin, Christian; Muñoz Vidal, Ricardo; Nidever, David; Oravetz, Audrey; Oravetz, Daniel; Pan, Kaike; Román Lopes, Alexandre; Sobeck, Jennifer; Stringfellow, Guy (IOP, 2020)
      Using 3D positions and kinematics of stars relative to the Sagittarius (Sgr) orbital plane and angular momentum, we identify 166 Sgr stream members observed by the Apache Point Observatory Galactic Evolution Experiment ...
    • Stellar and planetary characterization of the ross 128 exoplanetary system from APOGEE spectra 
      Souto, Diogo; Unterborn, Cayman T.; Smith, Verne V.; Cunha, Katia; Teske, Johanna; Covey, Kevin; Rojas Ayala, Barbara; García Hernández, D. A.; Stassun, Keivan; Zamora, Olga; Masseron, Thomas; Johnson, J. A.; Majewski, Steven R.; Jonsson, Henrik; Gilhool, Steven; Blake, Cullen; Santana, Felipe (IOP Publishing, 2018-06-10)
      The first detailed chemical abundance analysis of the M-dwarf (M4.0) exoplanet-hosting star Ross 128 is presented here, based upon near-infrared (1.5-1.7 mu m), high-resolution (R similar to 22,500) spectra from the SDSS ...
    • The Lazy Giants: APOGEE Abundances Reveal Low Star Formation Efficiencies in the Magellanic Clouds 
      Nidever, David L.; Hasselquist, Sten; Hayes, Christian R.; Hawkins, Keith; Povick, Joshua; Majewski, Steven R.; Smith, Verne V.; Anguiano, Borja; Stringfellow, Guy S.; Sobeck, Jennifer S.; Cunha, Katia; Beers, Timothy C.; Bestenlehner, Joachim M.; Cohen, Roger; Garcia-Hernandez, D. A.; Jönsson, Henrik; Nitschelm, Christian; Shetrone, Matthew; Lacerna, Ivan; Allende Prieto, Carlos; Beaton, Rachael L.; Dell’Agli, Flavia; Fernández Trincado, José G.; Feuillet, Diane; Gallart, Carme; Hearty, Fred R.; Holtzman, Jon; Manchado, Arturo; Muñoz Vidal, Ricardo R.; O’Connell, Robert; Rosado, Margarita (IOP Publishing, 2020)
      We report the first APOGEE metallicities and alpha-element abundances measured for 3600 red giant stars spanning a large radial range of both the Large (LMC) and Small Magellanic Clouds, the largest Milky Way (MW) dwarf ...