Results 101 to 110 of about 8,792 (213)

Dynamics of Small Solar System Bodies and Exoplanets [PDF]

, 2010
The Gaia space mission to be operated in early 2012 by the European Space Agency (ESA), will make a huge step in our knowledge of the Sun's neighbor-hood, up to the Magellanic clouds. Somewhat closer, Gaia will also provide ma jor improvements in the science of asteroids, and more generally to our Solar System, either directly or indirectly.
openaire   +1 more source

Three-dimensional Orbital Architectures and Detectability of Adjacent Companions to Hot Jupiters

The Astrophysical Journal
The orbital properties of the (as yet) small population of hot Jupiters with nearby planetary companions provide valuable constraints on the past migration processes of these systems.
Thomas MacLean, Juliette Becker
doaj   +1 more source

Predicted Number, Multiplicity, and Orbital Dynamics of TESS M-dwarf Exoplanets [PDF]

The Astronomical Journal, 2019
Abstract We present a study of the M-dwarf exoplanetary systems forthcoming from NASA’s TESS mission. While the mission’s footprint is too complex to be characterized by a single detection completeness, we extract ensemble completeness functions that recover the planet detections from previous work for stars between 3200 and 4000 K.
openaire   +2 more sources

On homogeneous statistical distributions exoplanets for their dynamic parameters

, 2009
Correct distributions of extrasolar systems for their orbital parameters (semi-major axes, period, eccentricity) and physical characteristics (mass, spectral type of parent star) are received. Orbital resonances in extrasolar systems are considered. It is shown, that the account of more thin effects, including with use of wavelet methods, in obviously ...
Mushailov, B. R., Ivanovskaya, L . M., Teplitskaya, V. S.   +2 more
openaire   +2 more sources

Astro2020 Project White Paper: The Cosmic Accelerometer [PDF]

, 2019
We propose an experiment, the Cosmic Accelerometer, designed to yield velocity precision of $\leq 1$ cm/s with measurement stability over years to decades.
Bentz, Misty, Conklin, John, Darling, Jeremy, Dong, Chenxing, Eikenberry, Stephen S, Fulda, Paul, Gonzalez, Anthony, Harrington, Joseph, Jeram, Sarik, Law, Nicholas, Liske, Jochen, Mueller, Guido, Nakazono, Lilianne Mariko Izuti, Oliveira, Claudia Mendes de, Quimby, Robert, Slepian, Zachary, Townsend, Amanda, Welsh, William   +17 more
core   +1 more source

Evidence for a Peak at ∼0.3 in the Eccentricity Distribution of Typical Super-Jovian Exoplanets

The Astrophysical Journal Letters
In this study, we compute completeness-corrected occurrence rates of giant exoplanets as a function of mass, semimajor axis, and eccentricity, using the approximately uniform California Legacy Survey sample of radial velocity-discovered planets published
Sarah Blunt, Jason Wang, Ruth Murray-Clay, Bruce Macintosh, Ryan A. Rubenzahl, B.J. Fulton   +5 more
doaj   +1 more source

A Comprehensive Analysis of Spitzer 4.5 μm Phase Curves of Hot Jupiters

The Astronomical Journal
Although exoplanetary science was not initially projected to be a substantial part of the Spitzer mission, its exoplanet observations set the stage for current and future surveys with JWST and Ariel.
Lisa Dang, Taylor J. Bell, Ying (Zoe) Shu, Nicolas B. Cowan, Jacob L. Bean, Drake Deming, Eliza M.-R. Kempton, Megan Weiner Mansfield, Emily Rauscher, Vivien Parmentier, Alexandra Rochon, Kevin B. Stevenson, Mark Swain, Laura Kreidberg, Tiffany Kataria, Jean-Michel Désert, Robert Zellem, Jonathan J. Fortney, Nikole K. Lewis, Michael Line, Caroline Morley, Adam Showman   +21 more
doaj   +1 more source

A Direct Comparison between the Use of Double Gray and Multiwavelength Radiative Transfer in a General Circulation Model with and without Radiatively Active Clouds

The Astrophysical Journal
Inhomogeneous cloud formation and wavelength-dependent phenomena are expected to shape hot Jupiter atmospheres. We present a general circulation model with multiwavelength “picket fence” radiative transfer and radiatively active, temperature-dependent ...
Isaac Malsky, Emily Rauscher, Michael T. Roman, Elspeth K. H. Lee, Hayley Beltz, Arjun Savel, Eliza M.-R. Kempton, L. Cinque   +7 more
doaj   +1 more source

Eccentricity Evolution of Warm Jupiters: The Role of Distant Perturbers and nearby Companions

The Astrophysical Journal
Warm Jupiters (WJs)—giant exoplanets with orbital periods between 10 and 200 days—exhibit a broad range of eccentricities and are often accompanied by nearby low-mass planets.
Ying He, Dong-Hong Wu, Sheng Jin
doaj   +1 more source

Toward High-precision Mass Measurements of Two Sub-Neptunes in the K2-266 Planetary System Through Transit Timing

The Astronomical Journal
Sub-Neptunes have been found to be one of the most common types of exoplanets, yet their physical parameters and properties are poorly determined and in need of further investigation.
Ing-Guey Jiang, Li-Chin Yeh, Billy Edwards, Ming Yang, Keivan G. Stassun, Napaporn A-thano   +5 more
doaj   +1 more source