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Hide and seek between Andromeda's halo, disk, and giant stream
Gisella Clementini, Rodrigo Contreras Ramos, Luciana Federici +17
Photometry in B, V (down to V ~ 26 mag) is presented for two 23' x 23' fields of the Andromeda galaxy (M31) that were observed with the blue channel camera of the Large Binocular T…
Polytropic model fits to the globular cluster NGC 2419 in Modified Newtonian Dynamics
Rodrigo Ibata, Antonio Sollima, Carlo Nipoti +3
We present an analysis of the globular cluster NGC 2419, using a polytropic model in Modified Newtonian Dynamics (MOND) to reproduce recently published high quality data of the str…
HST-ACS photometry of the isolated dwarf galaxy VV124=UGC4879. Detection of the Blue Horizontal Branch and identification of two young star clusters
M. Bellazzini, S. Perina, S. Galleti +1
We present deep V and I photometry of the isolated dwarf galaxy VV124=UGC4879, obtained from archival images taken with the Hubble Space Telescope - Advanced Camera for Surveys. In…
The globular cluster NGC 2419: a crucible for theories of gravity
R. Ibata, A. Sollima, C. Nipoti +3
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, w…