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5 papers · 2 filters
Stellar Age Estimation from ~3 Myr to ~3 Gyr
Lynne Hillenbrand, Eric Mamajek, John Stauffer +3
We present recent progress on quantitative estimation of stellar ages using ind icators such as theoretical evolutionary tracks, rotation, rotation-driven chrom ospheric and corona…
MMT/AO 5 micron Imaging Constraints on the Existence of Giant Planets Orbiting Fomalhaut at ~13-40 AU
Matthew A. Kenworthy, Eric E. Mamajek, Philip M. Hinz +5
A candidate < 3 Jupiter mass, extrasolar planet was recently imaged by Kalas et al. (2008) using HST/ACS at 12.7" (96 AU) separation from the nearby (d = 7.7 pc) young (~200 Myr) A…
Formation and Evolution of Planetary Systems (FEPS): Properties of Debris Dust around Solar-type Stars
John M. Carpenter, Jeroen Bouwman, Eric E. Mamajek +12
We present Spitzer photometric (IRAC and MIPS) and spectroscopic (IRS low resolution) observations for 314 stars in the Formation and Evolution of Planetary Systems (FEPS) Legacy p…
The Different Evolution of Gas and Dust in Disks around Sun-like and Cool Stars
I. Pascucci, D. Apai, K. Luhman +5
We present the first comprehensive, comparative Spitzer/IRS study of the dust and gas properties of disks around young sun-like stars (K1-M5) and cool stars/brown dwarfs (M5-M9). T…
The Formation and Evolution of Planetary Systems: Description of the Spitzer Legacy Science Database
John M. Carpenter, Jeroen Bouwman, Murray D. Silverstone +6
We present the science database produced by the Formation and Evolution of Planetary Systems (FEPS) Spitzer Legacy program. Data reduction and validation procedures for the IRAC, M…