277 citations · 2.7k across the 58 of their papers we have counts for
58 papers
A Universal Transition in Atmospheric Diffusion for Hot Subdwarfs Near 18,000 K
T. M. Brown, J. M. Taylor, S. Cassisi +6
In the color-magnitude diagrams (CMDs) of globular clusters, when the locus of stars on the horizontal branch (HB) extends to hot temperatures, discontinuities are observed at colo…
The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. VII. Implications from the Nearly Universal Nature of Horizontal Branch Discontinuities
Thomas M. Brown, Santi Cassisi, Francesca D'Antona +14
The UV-initiative Hubble Space Telescope Treasury survey of Galactic globular clusters provides a new window into the phenomena that shape the morphological features of the horizon…
Hot horizontal branch stars in NGC 288 - effects of diffusion and stratification on their atmospheric parameters
S. Moehler, S. Dreizler, F. LeBlanc +5
NGC288 is a globular cluster with a well-developed blue horizontal branch covering the u-jump that indicates the onset of diffusion. It is therefore well suited to study the effect…
The Discovery of Pulsating Hot Subdwarfs in NGC 2808
Thomas M. Brown, Wayne B. Landsman, Suzanna K. Randall +2
We present the results of a Hubble Space Telescope program to search for pulsating hot subdwarfs in the core of NGC 2808. These observations were motivated by the recent discovery…
Multiple populations in Galactic globular clusters: a survey in the Strömgren system
J. Alonso-García, M. Catelan, P. Amigo +10
We are coming to believe that stellar populations in globular clusters are not as simple as they were once thought to be. A growing amount of photometric and spectroscopic evidence…
Disentangling multiple stellar populations in globular clusters using the Strömgren system
J. Alonso-García, M. Catelan, P. Amigo +10
An increasing amount of spectroscopic and photometric evidence is showing that the stellar populations of globular clusters are not as simple as they have been considered for many…