Results 111 to 120 of about 2,563,330 (219)

APPLE: An Evolution Code for Modeling Giant Planets

The Astrophysical Journal
We introduce APPLE , a novel planetary evolution code designed specifically for the study of giant exoplanet and Jovian planet evolution in the era of Galileo, Juno, and Cassini. With APPLE , state-of-the-art equations of state for hydrogen, helium, ice,
Ankan Sur, Yubo Su, Roberto Tejada Arevalo, Yi-Xian Chen, Adam Burrows   +4 more
doaj   +1 more source

Effect of Galactic Chemical Evolution on Exoplanet Properties

The Astrophysical Journal Letters
Abstract We couple a simplified model for galactic chemical evolution with software that models the condensation of dust in protoplanetary disks and software that models the interior structure of planets, in order to estimate the effects that galactic chemical evolution has on the properties of planets as they form over time.
Jason H. Steffen, Cody Shakespeare, Robert Royer, David Rice, Allona Vazan   +4 more
openaire   +2 more sources

Wide-Orbit Exoplanet Demographics [PDF]

, 2019
Astro2020 Science White paper 2019International audienceThe Kepler, K2 and TESS transit surveys are revolutionizing our understanding of planets orbiting close to their host stars and our understanding of exoplanet systems in general, but there remains a
Sahlmann, Johannes, Novati, Sebastiano Calchi, Bachelet, Etienne, Bennett, David P., Henderson, Calen B., Mulders, Gijs D., Ranc, Clement, Johnson, Samson A., Raymond, Sean N., Buzasi, Derek, Nielsen, Eric, Rogers, Leslie, Mullally, Susan, Christiansen, Jessie, Ngo, Henry, Plavchan, Peter, Endl, Michael, Bozza, Valerio, Gaudi, B. Scott, Poleski, Radek, Suzuki, Daisuke, Sumi, Takahiro, Bellini, Andrea, Shvartzvald, Yossi, Pascucci, Ilaria, Schlieder, Joshua, Boss, Alan, Calchi Novati, Sebastiano, Koshimoto, Naoki, Beaulieu, Jean-Phillipe, Domagal-Goldman, Shawn D., Meyer, Michael, Alibert, Yann, Bryson, Stephen, Bennett, David, Anderson, Jay, Akeson, Rachel, Fulton, Benjamin J., Nataf, David, Street, Rachel, Penny, Matthew, Sozzetti, Alessandro, Zimmerman, Neil, Murray-Clay, Ruth, Sahu, Kailash C., Bhattacharya, Aparna   +45 more
core   +1 more source

Peas-in-a-pod across the Radius Valley: Rocky Systems Are Less Uniform in Mass but More Uniform in Size and Spacing

The Astrophysical Journal Letters
The ubiquity of “peas-in-a-pod” architectural patterns and the existence of the radius valley each presents a striking population-level trend for planets with R _p ≤ 4 R _⊕ that serves to place powerful constraints on the formation and evolution of these
Armaan V. Goyal, Songhu Wang
doaj   +1 more source

Exoplanet [PDF]

, 2009
This computer software is based on a simulation in which users interpret data about planets to determine which might support ...
Clancy, Sean, Gallagher, Daniel, Carter, Brad D., Nielsen, Matthew   +3 more
core  

Coupled Planetary Interior and Tidal Evolution

The Astrophysical Journal
We present a new planetary structure/thermal evolution model, designed for use in problems that couple orbital dynamics with planetary structure. We first benchmark our structural/thermal evolution calculations against the MESA stellar evolution code ...
Tim Hallatt, Sarah Millholland
doaj   +1 more source

EUV influences on exoplanet atmospheric stability and evolution

, 2019
Science white paper submitted to the Astro2020 Decadal Survey.
Youngblood, Allison, France, Kevin, Koskinen, Tommi, Fossati, Luca, Amerstorfer, Ute, Lichtenegger, Herbert, Drake, Jeremy, Mason, James, Fleming, Brian, Allred, Joel, Berta-Thompson, Zachory, Bourrier, Vincent, Froning, Cynthia, Garraffo, Cecilia, Gronoff, Guillaume, Jin, Meng, Kowalski, Adam, Osten, Rachel   +17 more
openaire   +2 more sources

Resonant and Ultra-short-period Planet Systems Are at Opposite Ends of the Exoplanet Age Distribution

The Astronomical Journal
Exoplanet systems are thought to evolve on secular timescales over billions of years. This evolution is impossible to directly observe on human timescales in most individual systems.
Stephen P. Schmidt, Kevin C. Schlaufman, Jacob H. Hamer   +2 more
doaj   +1 more source

Architectures of Exoplanetary Systems. IV. A Multiplanet Model for Reproducing the Radius Valley and Intrasystem Size Similarity of Planets around Kepler’s FGK Dwarfs

The Astrophysical Journal
The Kepler-observed distribution of planet sizes has revealed two distinct patterns: (1) a radius valley separating super-Earths and sub-Neptunes and (2) a preference for intrasystem size similarity.
Matthias Y. He, Eric B. Ford
doaj   +1 more source

Complex Adaptations and the Evolution of Evolvability

, 2005
Complex Adaptations and the Evolution of Evolvability +representation problem: "evolvability critically depends on the way genetic variation maps onto phenotypic variation" +Evidence that phenotypic variation is under genetic control: canalization ...
Altenberg, Lee, Wagner, Gunter P.
core