activity
20052023
most citedA Method for Measuring (Slopes of) the Mass Profiles of Dwarf Spheroidal Galaxies

655 citations · 7.9k across the 89 of their papers we have counts for

collaborators
Showing 2015 · astro-ph.GAShow all

7 papers · 2 filters

astro-ph.GA2015★ 122 cited

Magellan/M2FS Spectroscopy of Tucana 2 and Grus 1

Matthew G. Walker, Mario Mateo, Edward W. Olszewski +8

We present results from spectroscopic observations with the Michigan/Magellan Fiber System (M2FS) of stellar targets along the line of sight to the newly-discovered `ultrafai…

astro-ph.GA2015★ 55 cited

A Hubble Space Telescope Study of the Enigmatic Milky Way Halo Globular Cluster Crater

Daniel R. Weisz, Sergey E. Koposov, Andrew E. Dolphin +6

We analyze the resolved stellar populations of the faint stellar system, Crater, based on deep optical imaging taken with the Hubble Space Telescope. The HST/ACS-based color-magnit…

astro-ph.GA2015★ 8 cited

Evidence That Hydra I is a Tidally Disrupting Milky Way Dwarf Galaxy

Jonathan R. Hargis, B. Kimmig, B. Willman +6

The Eastern Banded Structure (EBS) and Hydra~I halo overdensity are very nearby (d 10 kpc) objects discovered in SDSS data. Previous studies of the region have shown that EB…

astro-ph.GA2015★ 32 cited

A low pre-infall mass for the Carina dwarf galaxy from disequilibrium modelling

Uğur Ural, Mark I. Wilkinson, Justin I. Read +1

Dark matter only simulations of galaxy formation predict many more subhalos around a Milky Way like galaxy than the number of observed satellites. Proposed solutions require the sa…

astro-ph.GA2015★ 84 cited

Magellan/M2FS Spectroscopy of the Reticulum 2 Dwarf Spheroidal Galaxy

Matthew G. Walker, Mario Mateo, Edward W. Olszewski +4

We present results from spectroscopic observations with the Michigan/Magellan Fiber System (M2FS) of 182 stellar targets along the line of sight to the newly-discovered `ultrafaint…

astro-ph.GA2015★ 28 cited

The SLUGGS Survey: Multi-population dynamical modelling of the elliptical galaxy NGC 1407 from stars and globular clusters

Vincenzo Pota, Aaron J. Romanowsky, Jean P. Brodie +7

We perform in-depth dynamical modelling of the luminous and dark matter (DM) content of the elliptical galaxy NGC 1407. Our strategy consists of solving the spherical Jeans equatio…