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Two New Long-Period Giant Planets from the McDonald Observatory Planet Search and Two Stars with Long-Period Radial Velocity Signals Related to Stellar Activity Cycles
Michael Endl, Erik J. Brugamyer, William D. Cochran +16
We report the detection of two new long-period giant planets orbiting the stars HD 95872 and HD 162004 (psi1 Draconis B) by the McDonald Observatory planet search. The planet HD 95…
Kepler-1647b: the largest and longest-period Kepler transiting circumbinary planet
Veselin B. Kostov, Jerome A. Orosz, William F. Welsh +28
We report the discovery of a new Kepler transiting circumbinary planet (CBP). This latest addition to the still-small family of CBPs defies the current trend of known short-period…
Mining Planet Search Data for Binary Stars: The Draconis system
Kevin Gullikson, Michael Endl, William D. Cochran +1
Several planet-search groups have acquired a great deal of data in the form of time-series spectra of several hundred nearby stars with time baselines of over a decade. While binar…
Discovery and Validation of Kepler-452b: A 1.6-Re Super Earth Exoplanet in the Habitable Zone of a G2 Star
Jon M. Jenkins, Joseph D. Twicken, Natalie M. Batalha +26
We report on the discovery and validation of Kepler-452b, a transiting planet identified by a search through the 4 years of data collected by NASA's Kepler Mission. This possibly r…
Optical hydrogen absorption consistent with a thin bow shock leading the hot Jupiter HD 189733b
P. Wilson Cauley, Seth Redfield, Adam G. Jensen +3
Bow shocks are ubiquitous astrophysical phenomena resulting from the supersonic passage of an object through a gas. Recently, pre-transit absorption in UV metal transitions of the…
The Weihai Observatory search for close-in planets orbiting giant stars
Robert A. Wittenmyer, Dongyang Gao, Shao Ming Hu +3
Planets are known to orbit giant stars, yet there is a shortage of planets orbiting within ~0.5 AU (P<100 days). First-ascent giants have not expanded enough to engulf such planets…