output
19932026
Showing 2015 · astro-ph.EPShow all

10 papers · 2 filters

astro-ph.EP2015★ 35 cited

The Pan-Pacific Planet Search. IV. Two super-Jupiters in a 3:5 resonance orbiting the giant star HD33844

Robert A. Wittenmyer, John Asher Johnson, R. P. Butler +9

We report the discovery of two giant planets orbiting the K giant HD 33844 based on radial velocity data from three independent campaigns. The planets move on nearly circular orbit…

astro-ph.EP2015★ 73 cited

Campaign 9 of the Mission: Observational Parameters, Scientific Drivers, and Community Involvement for a Simultaneous Space- and Ground-based Microlensing Survey

Calen B. Henderson, Radosław Poleski, Matthew Penny +118

's Campaign 9 (C9) will conduct a 3.7 deg survey toward the Galactic bulge from 7/April through 1/July of 2016 that will leverage the spatial separation between…

astro-ph.EP2015★ 23 cited

The Pan-Pacific Planet Search III: Five companions orbiting giant stars

R. A. Wittenmyer, R. P. Butler, L. Wang +4

We report a new giant planet orbiting the K giant HD 155233, as well as four stellar-mass companions from the Pan-Pacific Planet Search, a southern hemisphere radial velocity surve…

astro-ph.EP2015★ 31 cited

Kinetic Alfvén turbulence below and above ion-cyclotron frequency

J. S. Zhao, Y. M. Voitenko, D. J. Wu +1

Alfvénic turbulent cascade perpendicular and parallel to the background magnetic field is studied accounting for anisotropic dispersive effects and turbulent intermittency. The per…

astro-ph.EP2015★ 119 cited

Spitzer Parallax of OGLE-2015-BLG-0966: A Cold Neptune in the Galactic Disk

R. A. Street, A. Udalski, S. Calchi Novati +106

We report the detection of a Cold Neptune m_planet=21+/-2MEarth orbiting a 0.38MSol M dwarf lying 2.5-3.3 kpc toward the Galactic center as part of a campaign combining ground-base…

astro-ph.EP2015★ 24 cited

Ground-based transit observations of the HAT-P-18, HAT-P-19, HAT-P-27/WASP-40 and WASP-21 systems

M. Seeliger, M. Kitze, R. Errmann +46

As part of our ongoing effort to investigate transit timing variations (TTVs) of known exoplanets, we monitored transits of the four exoplanets HAT-P-18b, HAT-P-19b, HAT-P-27b/WASP…

astro-ph.EP2015★ 36 cited

Using the Rossiter-McLaughlin effect to observe the transmission spectrum of Earth's atmosphere

Fei Yan, Robert A. E. Fosbury, Monika G. Petr-Gotzens +2

Due to stellar rotation, the observed radial velocity of a star varies during the transit of a planet across its surface, a phenomenon known as the Rossiter-McLaughlin (RM) effect.…

astro-ph.EP2015★ 20 cited

An Unprecedented Constraint on Water Content in the Sunlit Lunar Exosphere Seen by Lunar-Based Ultraviolet Telescope of Chang'e-3 Mission

J. Wang, C. Wu, Y. L. Qiu +6

The content of molecules in the tenuous exosphere of the Moon is still an open issue at present. We here report an unprecedented upper limit of the content of th…

astro-ph.EP2015★ 5 cited

Planetary Systems in Star Clusters

Maxwell Xu Cai, Rainer Spurzem, M. B. N. Kouwenhoven

In the solar neighborhood, where the typical relaxation timescale is larger than the cosmic age, at least 10\% to 15\% of Sun-like stars have planetary systems with Jupiter-mass pl…

astro-ph.EP2015★ 39 cited

The centre-to-limb variations of solar Fraunhofer lines imprinted upon lunar eclipse spectra - Implications for exoplanet transit observations

Fei Yan, Robert A. E. Fosbury, Monika G. Petr-Gotzens +2

The atmospheres of exoplanets are commonly studied by observing the transit of the planet passing in front of its parent star. The obscuration of part of the stellar disk during a…