output
19992008
most citedThe Power Spectrum Dependence of Dark Matter Halo Concentrations

484 citations

Showing 1999 · astro-phShow all

5 papers · 2 filters

astro-ph1999★ 114 cited

Exploring Halo Substructure with Giant Stars: II. Mapping the Extended Structure of the Carina Dwarf Spheroidal Galaxy

S. R. Majewski, J. C. Ostheimer, R. J. Patterson +3

As part of our survey for substructure in the Milky Way halo as traced by giant stars, and to look for tidal stellar debris in the halo viable for measurement of the Galactic mass…

astro-ph1999★ 153 cited

The core density of dark matter halos: a critical challenge to the Lambda-CDM paradigm?

Julio F. Navarro, Matthias Steinmetz

We compare the central mass concentration of Cold Dark Matter halos found in cosmological N-body simulations with constraints derived from the Milky Way disk dynamics and from the…

astro-ph1999★ 100 cited

Constraining the History of the Sagittarius Dwarf Galaxy Using Observations of its Tidal Debris

K. V. Johnston, S. R. Majewski, M. H. Siegel +2

We present a comparison of semi-analytic models of the phase-space structure of tidal debris with observations of stars associated with the Sagittarius dwarf galaxy (Sgr). We find…

astro-ph1999★ 71 cited

Starcounts Redivivus: III. A Possible Detection of the Sagittarius Dwarf Spheroidal Galaxy at b=-40

S. R. Majewski, M. H. Siegel, W. E. Kunkel +5

As part of the Selected Areas Starcount Survey (SASS), a CCD survey to V>21, we have obtained VI photometry of two fields at b=+-40 aligned roughly with an extrapolation of the maj…

astro-ph1999★ 74 cited

An Internal Second Parameter Problem in the Sculptor Dwarf Spheroidal Galaxy

S. R. Majewski, M. H. Siegel, Richard J. Patterson +1

We present BV photometry of the Sculptor dwarf galaxy to V=22. These data give evidence for a bimodality in Sculptor's metallicity distribution based on a discontinuity in the lumi…