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VISTA Variables in the Via Lactea (VVV): The public ESO near-IR variability survey of the Milky Way
D. Minniti, P. W. Lucas, J. P. Emerson +63
We describe the public ESO near-IR variability survey (VVV) scanning the Milky Way bulge and an adjacent section of the mid-plane where star formation activity is high. The survey…
Ancient stars beyond the Local Group: RR Lyrae variables and Blue Horizontal Branch stars in Sculptor Group Dwarf Galaxies
G. S. Da Costa, M. Rejkuba, H. Jerjen +1
We have used Hubble Space Telescope ACS images to generate color-magnitude diagrams that reach below the magnitude of the horizontal branch in the Sculptor Group dwarf galaxies ESO…
The Distance to NGC 5128 (Centaurus A)
Gretchen L. H. Harris, Marina Rejkuba, William E. Harris
In this paper we review the various high precision methods that are now available to determine the distance to NGC 5128. These methods include: Cepheids, TRGB (tip of the red giant…
Integrated K-band spectra of old and intermediate-age globular clusters in the Large Magellanic Cloud
Mariya Lyubenova, Harald Kuntschner, Marina Rejkuba +4
Current stellar population models have arguably the largest uncertainties in the near-IR wavelength range, partly due to a lack of large and well calibrated empirical spectral libr…
The velocity dispersion and mass-to-light ratio of the remote halo globular cluster NGC 2419
H. Baumgardt, P. Cote, M. Hilker +4
Precise radial velocity measurements from HIRES on the Keck I telescope are presented for 40 stars in the outer halo globular cluster NGC 2419. These data are used to probe the clu…
The stellar population content of the thick disk and halo of the Milky Way analogue NGC 891
Marina Rejkuba, Mustapha Mouhcine, Rodrigo Ibata
We present deep ACS images of 3 fields in the edge-on disk galaxy NGC 891, which extend from the plane of the disk to 12 kpc, and out to 25 kpc along the major axis. The photometry…