- Lawrence Berkeley National LaboratoryUS199 papers
- Centre National de la Recherche ScientifiqueFR190 papers
- Royal Military College of CanadaCA179 papers
- University of AlbertaCA166 papers
- University of OxfordGB151 papers
- University of California, BerkeleyUS142 papers
- Massachusetts Institute of TechnologyUS134 papers
- Technical University of MunichDE128 papers
- University of TorontoCA127 papers
- Laurentian UniversityCA114 papers
- South Dakota School of Mines and TechnologyUS110 papers
- TRIUMFCA107 papers
23 papers · 2 filters
ACS photometry of newly-discovered globular clusters in the outer halo of M31
A. D. Mackey, A. Huxor, A. M. N. Ferguson +6
We report the first results from deep ACS imaging of ten classical globular clusters in the far outer regions (15 < R_p < 100 kpc) of M31. Eight of the clusters, including two of t…
Rotation and chemical abundances of Ap/Bp stars in the open cluster NGC 6475
C. P. Folsom, G. A. Wade, S. Bagnulo +1
The connection between age, rotation and chemical abundance of magnetic Ap stars is poorly understood. Using open clusters, we are able to study samples of stars that are both co-e…
Spectroscopy of Globular Clusters out to Large Radius in the Sombrero Galaxy
Terry Bridges, Katherine Rhode, Steve Zepf +1
We present new velocities for 62 globular clusters in M104 (NGC 4594, the Sombrero Galaxy), 56 from 2dF on the AAT and 6 from Hydra on WIYN. Combined with previous data, we have a…
ACS photometry of extended, luminous globular clusters in the outskirts of M31
A. D. Mackey, A. Huxor, A. M. N. Ferguson +6
A new population of extended, luminous globular clusters has recently been discovered in the outskirts of M31. These objects have luminosities typical of classical globular cluster…
The Bulge-Halo Connection in Galaxies: A Physical Interpretation of the Vcirc-sigma_0 Relation
Stephane Courteau, Michael McDonald, Lawrence M. Widrow +1
We explore the dependence of the ratio of a galaxy's circular velocity, Vcirc, to its central velocity dispersion, sigma_0, on morphology, or equivalently total light concentration…
The Possible Belts for Extrasolar Planetary Systems
Ing-Guey Jiang, M. Duncan, D. N. C. Lin
More than 100 extrasolar planets have been discovered since 1990s. Different from the solar system, these planets' orbital eccentricities cover a huge range from 0 to 0.7. Incident…