Browsing by Author "Hardy, Eduardo"

Now showing items 1-10 of 10

    • The chemical enrichment history of the large magellanic cloud 
      Carrera, Ricardo; Gallart, Carme; Hardy, Eduardo; Aparicio, Antonio; Zinn, R. (IOP PUBLISHING LTD, 2008-03)
      Ca (II) triplet spectroscopy has been used to derive stellar metallicities for individual stars in four Large Magellanic Cloud fields situated at galactocentric distances of 3 degrees, 5 degrees, 6 degrees, and 8 degrees ...
    • Distances from stellar kinematics for peculiar Virgo Cluster spiral galaxies 
      Cortés, Juan R.; Kenney, Jeffrey D. P.; Hardy, Eduardo (UNIV CHICAGO PRESS, 2008-08-10)
      We present distance estimates for 11 peculiar Virgo Cluster spiral galaxies based on measurements of the stellar kinematics of their central 2 kpc. Stellar circular velocities were obtained using two- integral dynamical ...
    • The nature of the peculiar Virgo Cluster galaxies NGC 4064 and NGC 4424 
      Cortés, Juan R.; Kenney, Jeffrey D. P.; Hardy, Eduardo (UNIV CHICAGO PRESS, 2006-02)
      Using extensive kinematical and morphological data on two Virgo Cluster galaxies undergoing strong nuclear star formation, we show that ram pressure stripping and gravitational interactions can act together on galaxies ...
    • No Hubble bubble in the local universe 
      Giovanelli, Ricardo; Dale, Daniel A.; Haynes, Martha P.; Hardy, Eduardo; Campusano, Luis E. (UNIV CHICAGO PRESS, 1999-11-01)
      Zehavi et al. have suggested that the Hubble flow within 70 h(-1) Mpc may be accelerated by the existence of a void centered on the Local Group. Its underdensity would be similar to 20%, which would result in a local Hubble ...
    • Outside-in disk evolution in the large magellanic cloud 
      Gallart, Carme; Stetson, Peter B.; Meschin, Ingrid P.; Pont, Frederic; Hardy, Eduardo (UNIV CHICAGO PRESS, 2008-08-01)
      From the analysis of the color-magnitude diagrams and color functions of four wide LMC fields located from similar or equal to 2 to 6 kpc from the kinematic center of the LMC we present evidence that, while the oldest ...
    • Seeking the local convergence depth. II. Tully-Fisher observations of the clusters A114, A119, A194, A2295, ... 
      Dale, Daniel A.; Giovanelli, Riccardo; Haynes, Martha P.; Scodeggio, Marco; Hardy, Eduardo; Campusano, Luis E. (UNIV CHICAGO PRESS, 1998-02)
      We present Tully-Fisher (T-F) observations for nine rich Abell clusters of galaxies. This is the second such data installment of an all-sky survey of similar to 50 clusters in the redshift range 0.02 less than or similar ...
    • Seeking the local convergence depth. V. Tully-Fisher peculiar velocities for 52 Abell clusters 
      Dale, Daniel A.; Giovanelli, Riccardo; Haynes, Martha P.; Campusano, Luis E.; Hardy, Eduardo (UNIV CHICAGO PRESS, 1999-10)
      We have obtained I-band Tully-Fisher (T-F) measurements for 522 late-type galaxies in the fields of 52 rich Abell clusters distributed throughout the sky between similar to 50 and 200 h(-1) Mpc. Here we estimate corrections ...
    • Seeking the local convergence depth: The Abell cluster dipole flow to 200 h(-l) Mpc 
      Dale, Daniel A.; Giovanelli, Riccardo; Haynes, Martha P.; Campusano, Luis E.; Hardy, Eduardo; Borgani, Stefano (UNIV CHICAGO PRESS, 1999-01-01)
      We have obtained new Tully-Fisher (TF) peculiar velocity measurements for 52 Abell galaxy clusters distributed throughout the sky between similar to 50 and 200 h(-1) Mpc. The measurements are based on 1-band photometry and ...
    • Shrinking of cluster ellipticals: A tidal stripping explanation and implications for the intracluster light 
      Cypriano, Eduardo S.; Sodre, Laerte; Campusano, Luis E.; Dale, Daniel A.; Hardy, Eduardo (UNIV CHICAGO PRESS, 2006-05)
      We look for evidence of tidal stripping in elliptical galaxies through the analysis of homogeneous CCD data corresponding to a sample of 228 elliptical galaxies belonging to 24 clusters of galaxies at 0: 015 < z < 0.080. ...
    • Signatures of galaxy-cluster interactions: Spiral galaxy rotation curve asymmetry, shape, and extent 
      Dale, Daniel A.; Giovanelli, Riccardo; Haynes, Martha P.; Hardy, Eduardo; Campusano, Luis E. (UNIV CHICAGO PRESS, 2001-04)
      The environmental dependencies of the characteristics of spiral galaxy rotation curves are studied in this work. We use our large, homogeneously collected sample of 510 cluster spiral galaxy rotation curves to test the ...