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27 papers · 2 filters
Kepler-7b: A Transiting Planet with Unusually Low Density
David W. Latham, William J. Borucki, David G. Koch +18
We report the discovery and confirmation of Kepler-7b, a transiting planet with unusually low density. The mass is less than half that of Jupiter, Mp = 0.43 Mj, but the radius is f…
A single sub-km Kuiper Belt object from a stellar Occultation in archival data
H. E. Schlichting, E. O. Ofek, M. Wenz +5
The Kuiper belt is a remnant of the primordial Solar System. Measurements of its size distribution constrain its accretion and collisional history, and the importance of material s…
(47171) 1999 TC36, A Transneptunian Triple
S. D. Benecchi, K. S. Noll, W. M. Grundy +1
We present new analysis of HST images of (47171) 1999 TC36 that confirm it as a triple system. Fits to the point-spread function consistently show that the apparent primary is itse…
Ultraviolet and visible photometry of asteroid (21) Lutetia using the Hubble Space Telescope
H. A. Weaver, P. D. Feldman, W. J. Merline +10
The asteroid (21) Lutetia is the target of a planned close encounter by the Rosetta spacecraft in July 2010. To prepare for that flyby, Lutetia has been extensively observed by a v…
Day-side z'-band emission and eccentricity of Wasp-12b
Mercedes Lopez-Morales, Jeffrey L. Coughlin, David K. Sing +5
We report the detection of the eclipse of the very-hot Jupiter WASP-12b via z'-band time-series photometry obtained with the 3.5-meter ARC telescope at Apache Point Observatory. We…
Interpretation of Strong Short-Term Central Perturbations in the Light Curves of Moderate-Magnification Microlensing Events
C. Han, K. -H. Hwang, D. Kim +87
To improve the planet detection efficiency, current planetary microlensing experiments are focused on high-magnification events searching for planetary signals near the peak of len…