270 citations
- Center for Astrophysics Harvard & SmithsonianUS7 papers
- University of UtahUS6 papers
- California Institute of TechnologyUS5 papers
- The University of Texas at AustinUS5 papers
- University of Maryland, College ParkUS5 papers
- Columbia UniversityUS4 papers
- Jet Propulsion LaboratoryUS4 papers
- Leiden UniversityNL4 papers
- Space Telescope Science InstituteUS4 papers
- University of ArizonaUS4 papers
- Astronomical Observatory of CapodimonteIT3 papers
- Case Western Reserve UniversityUS3 papers
24 papers · 2 filters
Rapid Formation of Icy Super-Earths and the Cores of Gas Giant Planets
Scott J. Kenyon, Benjamin C. Bromley
We describe a coagulation model that leads to the rapid formation of super-Earths and the cores of gas giant planets. Interaction of collision fragments with the gaseous disk is th…
Do the nearby BHB stars belong to the Thick Disk or the Halo?
T. D. Kinman, Heather L. Morrison, Warren R. Brown
We study the Milky Way region Z<3.0 kpc, where the thick disk and inner halo overlap, by using the kinematics of local blue horizontal branch (BHB) stars (within 1 kpc) and new sam…
The Anisotropic Spatial Distribution of Hypervelocity Stars
Warren R. Brown, Margaret J. Geller, Scott J. Kenyon +1
We study the distribution of angular positions and angular separations of unbound hypervelocity stars (HVSs). HVSs are spatially anisotropic at the 3-sigma level. The spatial aniso…
Hypervelocity Stars and the Galactic Center
Warren R. Brown
A summary of the current knowledge on hypervelocity stars (HVSs). HVSs are fascinating because their properties are linked to Sgr A* and the stellar environment of the Galactic Cen…
Welcome back, Polaris the Cepheid
H. Bruntt, A. J. Penny, D. Stello +2
For about 100 years the amplitude of the 4-day pulsation in Polaris has decreased. We present new results showing a significant increase in the amplitude based on 4.5 years of cont…
Direct Distance Measurement to the Dusty White Dwarf GD 362
Mukremin Kilic, John R. Thorstensen, Detlev Koester
We present trigonometric parallax observations of GD 362 obtained over seven epochs using the MDM 2.4m Hiltner Telescope. The existence of a dust disk around this possibly massive…