4 citations · 5 across the 2 of their papers we have counts for
11 papers
Using Local Group Galaxies to Investigate the Influence of Blending on Cepheid Distances and the Cosmological Distance Scale
B. J. Mochejska, L. M. Macri, D. D. Sasselov +1
We investigate the influence of blending on the Cepheid distance scale using two Local Group galaxies, M31 and M33. Blending leads to systematically low distances to galaxies obser…
A New Transiting Extrasolar Giant Planet
M. Konacki, G. Torres, S. Jha +1
We have measured radial velocities of a star, OGLE-TR-56, which shows a 1.2-day transit-like light curve found photometrically by Udalski et al.(2002ab). Here we show that the velo…
The DIRECT Project: Influence of Blending on the Cepheid Distance Scale. II. Cepheids in M33
B. J. Mochejska, L. M. Macri, D. D. Sasselov +1
We investigate the influence of blending on the Cepheid distance scale. Blending is the close association of a Cepheid with one or more intrinsically luminous stars. High-resolutio…
DIRECT Distances to Local Group Galaxies
Dimitar D. Sasselov
The two nearby galaxies, M31 and M33, are stepping stones for most of our current efforts to understand the evolving universe at large scales. We are undertaking a long term projec…
Halting Planetary Migration
M. Lecar, D. D. Sasselov
When Jupiter's Roche Lobe radius exceeded the scale height of the protoplanetary disk, Jupiter opened a gap in the disk. When the gap was wide enough, tidal torques from the disk i…
Surface Imaging by Microlensing - Exploring Depth in Stellar Atmospheres
Dimitar D. Sasselov
Gravitational microlensing is a new technique for studying the surfaces of distant stars. A point mass lens, usually a low-mass star from the disk, will typically resolve the surfa…