activity
19942023
most citedPhotospheric radius expansion X-ray bursts as standard candles

389 citations · 6.9k across the 120 of their papers we have counts for

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Showing 2012Show all

5 papers · 1 filter

astro-ph.CO2012★ 21 cited

Unearthing Foundations of a Cosmic Cathedral: Searching the Stars for M33's Halo

Robert Cockcroft, Alan W. McConnachie, William E. Harris +9

We use data from the Pan-Andromeda Archaeological Survey (PAndAS) to search for evidence of an extended halo component belonging to M33 (the Triangulum Galaxy). We identify a popul…

astro-ph.CO2012★ 12 cited

The Size Difference Between Red And Blue Globular Clusters Is NOT Due To Projection Effects

Jeremy J. Webb, William E. Harris, Alison Sills

Metal-rich (red) globular clusters in massive galaxies are, on average, smaller than metal-poor (blue) globular clusters. One of the possible explanations for this phenomenon is th…

astro-ph.GA2012★ 40 cited

N-body models of globular clusters: metallicity, half-light radii and mass-to-light ratios

Anna C. Sippel, Jarrod R. Hurley, Juan P. Madrid +1

Size differences of approx. 20% between red (metal-rich) and blue (metal-poor) sub-populations of globular clusters have been observed, generating an ongoing debate as to weather t…

astro-ph.CO2012★ 57 cited

Substructure in the Most Massive GEEC Groups: Field-like Populations in Dynamically Active Groups

Annie Hou, Laura C. Parker, David J. Wilman +6

The presence of substructure in galaxy groups and clusters is believed to be a sign of recent galaxy accretion and can be used not only to probe the assembly history of these struc…

astro-ph.CO2012★ 12 cited

The Observational and Theoretical Tidal Radii of Globular Clusters in M87

Jeremy J. Webb, Alison Sills, William E. Harris

Globular clusters have linear sizes (tidal radii) which theory tells us are determined by their masses and by the gravitational potential of their host galaxy. To explore the relat…