5 papers · 1 filter
Early galaxy evolution from deep wide field star counts. I. The spheroid density law and mass function
A. C. Robin, C. Reyle, M. Creze
As part of a global analysis of deep star counts to constrain scenarii of galaxy formation and evolution, we investigate possible links between the galactic spheroid and the dark m…
New surveys of UBV photometry and absolute proper motions at intermediate latitude
D. K. Ojha, O. Bienayme, V. Mohan +1
A photometric and proper motion survey has been obtained in 2 directions at intermediate latitude: (, ; ,$δ_{2000}=+49^\circ53'27…
Structure and kinematical properties of the Galaxy at intermediate galactic latitudes
Devendra Ojha, Olivier Bienayme, Annie Robin +2
We have carried out a sample survey in UBVR photometry and proper motions in different directions in the Galaxy, as part of an investigation of galactic structure and evolution. Th…
How Do the Stellar Disc and Thick Disc Stop ?
Annie C. Robin, Michel Creze, Vijay Mohan
As part of a stellar population sampling program, a series of photometric probes at various field sizes and depths have been obtained in a low extinction window in the galactic ant…
The Asymmetric Drift of the Thick Disk Population
Devendra Ojha, Annie C. Robin, Olivier Bienayme
We investigate the kinematics of the intermediate population using the photometric and astrometric sample surveys towards two opposite directions (galactic centre and anticentre) a…