311 citations · 6.2k across the 141 of their papers we have counts for
7 papers · 1 filter
Why do galaxies stop forming stars? I. The passive fraction - black hole mass relation for central galaxies
Asa F. L. Bluck, Sara L. Ellison, David R. Patton +5
We derive the dependence of the fraction of passive central galaxies on the mass of their supermassive black holes for a sample of over 400,000 SDSS galaxies at z < 0.2. Our large…
The first carbon-enhanced metal-poor star found in the Sculptor dwarf spheroidal
Asa Skuladottir, Eline Tolstoy, Stefania Salvadori +4
The origin of carbon-enhanced metal-poor (CEMP) stars and their possible connection with the chemical elements produced by the first stellar generation is still highly debated. In…
Chemical enrichment in very low-metallicity environments: Bootes I
Donatella Romano, Michele Bellazzini, Else Starkenburg +1
We present different chemical evolution models for the ultrafaint dwarf galaxy Bootes I. We either assume that the galaxy accretes its mass through smooth infall of gas of primordi…
Galactic Tides and the Shape and Orientation of Dwarf Galaxy Satellites
Christopher Barber, Else Starkenburg, Julio F. Navarro +1
We use cosmological N-body simulations from the Aquarius Project to study the tidal effects of a dark matter halo on the shape and orientation of its substructure. Although tides a…
Searching for Dust around Hyper Metal-Poor Stars
Kim A. Venn, Thomas H. Puzia, Mike Divell +3
We examine the mid-infrared fluxes and spectral energy distributions for metal-poor stars with iron abundances [Fe/H] , as well as two CEMP-no stars, to eliminate the p…
Binarity in Carbon-Enhanced Metal-Poor stars
Else Starkenburg, Matthew D. Shetrone, Alan W. McConnachie +1
A substantial fraction of the lowest metallicity stars show very high enhancements in carbon. It is debated whether these enhancements reflect the stars' birth composition, or if t…