Browsing Physics & Atmospheric Science Faculty Research, Publications and Presentations by Author "Dalessandro, E."

Now showing items 1-3 of 3

  • The globular cluster NGC 2419: a crucible for theories of gravity 

    Ibata, R., A. Sollima, C. Nipoti, M. Bellazzini, et al. 2011. "The globular cluster NGC 2419: a crucible for theories of gravity." The Astrophysical Journal 738:186.
    We present the analysis of a kinematic data set of stars in the globular cluster NGC 2419, taken with Keck/DEIMOS. Combined with a reanalysis of deep HST and Subaru imaging data, which provide an accurate luminosity profile ...

  • News from the Galactic suburbia: the chemical composition of the remote globular cluster NGC 2419 

    Mucciarelli, A., M. Bellazzini, R. Ibata, T. Merle, et al. 2012. "News from the Galactic suburbia: the chemical composition of the remote globular cluster NGC 2419." Monthly Notices of the Royal Astronomical Society 426:2889.
    We present the chemical analysis of 49 giant stars of the globular cluster NGC 2419, using medium resolution spectra collected with the multi-object spectrograph DEIMOS@Keck. Previous analysis of this cluster revealed a ...

  • The nucleus of the Sagittarius dSph galaxy and M54: a window on the process of galaxy nucleation 

    Bellazzini, M., R. A. Ibata, S. C. Chapman, A. D. Mackey, et al. 2008. "The nucleus of the Sagittarius dSph galaxy and M54: a window on the process of galaxy nucleation." The Astronomical Journal 136(3): 1147-1170
    We present the results of a thorough study of the nucleus of the Sgr dwarf spheroidal galaxy and of the bright globular cluster M54 that resides within the same nucleus (Sgr,N). We have obtained accurate radial velocities ...