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Effects of Orbital Eccentricity on Extrasolar Planet Transit Detection and Lightcurves
Jason W. Barnes
It is shown herein that planets with eccentric orbits are more likely to transit than circularly orbiting planets with the same semimajor axis by a factor of (1-e^2)^{-1}. If the o…
Planetary Radii across Five Orders of Magnitude in Mass and Stellar Insolation: Application to Transits
Jonathan J. Fortney, Mark S. Marley, Jason W. Barnes
To aid in the physical interpretation of planetary radii constrained through observations of transiting planets, or eventually direct detections, we compute model radii of pure hyd…
Transit Detectability of Ring Systems Around Extrasolar Giant Planets
Jason W. Barnes, Jonathan J. Fortney
We investigate whether rings around extrasolar planets could be detected from those planets' transit lightcurves. To this end we develop a basic theoretical framework for calculati…
Measuring the Oblateness and Rotation of Transiting Extrasolar Giant Planets
Jason W. Barnes, Jonathan J. Fortney
We investigate the prospects for characterizing extrasolar giant planets by measuring planetary oblateness from transit photometry and inferring planetary rotational periods. The r…
Stability of Satellites Around Close-in Extrasolar Giant Planets
Jason W. Barnes, D. P. O'Brien
We investigate the long-term dynamical stability of hypothetical moons orbiting extrasolar giant planets. Stellar tides brake a planet's rotation and, together with tidal migration…
Superiority of the Lunar and Planetary Laboratory (LPL) over Steward Observatory (SO) at the University of Arizona
Jason W. Barnes, D. P. O'Brien, J. J. Fortney +1
LPL dominance over Steward is demonstrated through several lines of evidence including observations and modelling of previous April Fools day behavior. The decrease in Steward cool…
Near-infrared coronagraphic imaging of the circumstellar disk around TW Hydrae
David E. Trilling, David W. Koerner, Jason W. Barnes +2
We present ground-based near-infrared (H-band) imaging of the circumstellar disk around the nearby classical T Tauri star TW Hydrae. The scattered light image shows a face-on disk…