Two Exoplanets Discovered at Keck Observatory (2009)
Valenti, J. A., Fischer, D. A., Marcy, G. W., Johnson, J. A., Henry, G. W., Wright, J. T., ...
We present two exoplanets detected at Keck Observatory. HD 179079 is a G5 subgiant that hosts a hot Neptune planet with Msini = 27.5 M_earth in a 14.48 d, low-eccentricity orbit. The stellar reflex...
Five planets and an independent confirmation of HD 196885Ab from Lick Observatory (2009)
Fischer, D. A., Driscoll, P., Isaacson, H., Giguere, M., Marcy, G. W., Valenti, J. A., ...
We present time series Doppler data from Lick Observatory that reveal the presence of long-period planetary companions orbiting nearby stars. The typical eccentricity of these massive planets are...
Page, K. L., Willingale, R., Bissaldi, E., Postigo, A. De Ugarte, Holland, S. T., McBreen, S., ...
GRB 080810 was one of the first bursts to trigger both Swift and the Fermi Gamma-ray Space Telescope. It was subsequently monitored over the X-ray and UV/optical bands by Swift, in the optical by...
HAT-P-13b,c: a transiting hot Jupiter with a massive outer companion on an eccentric orbit (2009)
Bakos, G. A., Howard, A. W., Noyes, R. W., Hartman, J., Torres, G., Kovacs, Geza, ...
We report on the discovery of a planetary system with a close-in transiting hot Jupiter on a near circular orbit and a massive outer planet on a highly eccentric orbit. The inner planet, HAT-P-13b,...
HAT-P-12b: A Low-Density Sub-Saturn Mass Planet Transiting a Metal-Poor K Dwarf (2009)
Hartman, J. D., Bakos, G. Á., Torres, G., Kovács, Géza, Noyes, R. W., Pál, A., ...
We report on the discovery of HAT-P-12b, a transiting extrasolar planet orbiting the moderately bright V=12.8 K4 dwarf GSC 03033-00706, with a period P = 3.2130598 +- 0.0000021 d, transit epoch Tc =...
Efficient fitting of multiplanet Keplerian models to radial velocity and astrometry data (2009)
We describe a technique for solving for the orbital elements of multiple planets from radial velocity (RV) and/or astrometric data taken with 1 m/s and microarcsecond precision, appropriate for...
The Jupiter Twin HD 154345b (2008)
Wright, J. T., Marcy, G. W., Butler, R. P., Vogt, S. S., Henry, G. W., Isaacson, H., ...
We announce the discovery of a twin of Jupiter orbiting the slightly metal-poor ([Fe/H] = -0.1) nearby (d = 18 pc) G8 dwarf HD 154345. This planet has a minimum mass of 0.95 Jupiter masses and a 9.2...