14 papers
Using globular clusters to test gravity in the weak acceleration regime: NGC 6171
Riccardo Scarpa, Gianni Marconi, Roberto Gilmozzi
As part of an ongoing program to test Newton's law of gravity in the low acceleration regime using globular clusters, we present here new results obtained for NGC 6171. Combining V…
A survey of Probable Open Cluster Remnants in the Galactic Disk
Sandro Villanova, Giovanni Carraro, Raul de la Fuente Marcos
We present preliminary results of an ongoing survey to probe the physical nature of a sample of open clusters (POCRs, Bica et al. 2001) believed to be in an advanced stage of dynam…
Coupling Chemical Evolution with SPH
G. Carraro, L. Portinari, C. Lia
We present a new statistical algorithm of Chemical Evolution implemented into the Tree-SPH code developed by Lia & Carraro (2000 MNRAS 314, 145).
The Dark and Luminous Matter coupling in the formation of spheroids: a SPH investigation
Cesario Lia, Giovanni Carraro, Paolo Salucci
Using N-body/hydrodynamical simulations which include prescriptions for Star Formation, Feed-Back and Chemical Evolution, we explore the interaction between baryons and Dark Matter…
NGC 6994: an open cluster which is not an open cluster
Giovanni Carraro
We report on CCD photometry in the Johnson B,V and I passbands for 146 stars in a 9' \times 9' region around the southern aggregate NGC 6994 (C 2056-128), which appears in the Lyng…
On the formation and evolution of the globular cluster Omega Centauri
Giovanni Carraro, Cesario Lia
By means of N-body/hydrodynamical simulations we model the evolution of a primordial 10^{8} solar masses density peak which ends up in an object closely resembling the present day…