Results 1 to 10 of about 121,588 (207)

Implications of the TTV-detection of close-in terrestrial planets around M stars for their origin and dynamical evolution

open access: yesEPJ Web of Conferences, 2011
It has been shown that an Earth-size planet or a super-Earth, in resonance with a transiting Jupiter-like body around an M star, can create detectable TTV signals (Kirste & Haghighipour, 2011).
Rastegar S., Haghighipour N.
doaj   +3 more sources

Community review: a robust and scalable selection system for resource allocation within open science and innovation communities [version 2; peer review: 2 approved]

open access: yesF1000Research, 2023
Resource allocation is essential to the selection and implementation of innovative projects in science and technology. With large stakes involved in concentrating large fundings over a few promising projects, current “winner-take-all” models for grant ...
Marc Santolini   +8 more
doaj   +1 more source

Warm giant exoplanet characterisation: current state, challenges and outlook

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The characterisation of giant exoplanets is crucial to constrain giant planet formation and evolution theory and for putting the solar-system’s giant planets in perspective. Typically, mass-radius (M-R) measurements of moderately irradiated warm Jupiters
Simon Müller, Ravit Helled
doaj   +1 more source

Hot Jupiters Have Giant Companions: Evidence for Coplanar High-eccentricity Migration

open access: yesThe Astrophysical Journal Letters, 2023
This study considers the characteristics of planetary systems with giant planets based on a population-level analysis of the California Legacy Survey planet catalog. We identified three characteristics common to hot Jupiters (HJs).
Jon K. Zink, Andrew W. Howard
doaj   +1 more source

Inner Planetary System Gap Complexity is a Predictor of Outer Giant Planets

open access: yesThe Astronomical Journal, 2023
The connection between inner small planets and outer giant planets is crucial to our understanding of planet formation across a wide range of orbital separations. While Kepler provided a plethora of compact multiplanet systems at short separations (≲1 au)
Matthias Y. He, Lauren M. Weiss
doaj   +1 more source

Saturn's Rings as a Seismograph to Probe Saturn's Internal Structure

open access: yesAGU Advances, 2020
As it has already done for Earth, the Sun, and the stars, seismology has the potential to radically change the way the interiors of giant planets are studied.
Christopher R. Mankovich
doaj   +1 more source

TOI-4600 b and c: Two Long-period Giant Planets Orbiting an Early K Dwarf

open access: yesThe Astrophysical Journal Letters, 2023
We report the discovery and validation of two long-period giant exoplanets orbiting the early K dwarf TOI-4600 ( V = 12.6, T = 11.9), first detected using observations from the Transiting Exoplanet Survey Satellite (TESS) by the TESS Single Transit ...
Ismael Mireles   +33 more
doaj   +1 more source

Puzzling out the coexistence of terrestrial planets and giant exoplanets. The 2/1 resonant periodic orbits [PDF]

open access: yes, 2018
Hundreds of giant planets have been discovered so far and the quest of exo-Earths in giant planet systems has become intriguing. In this work, we aim to address the question of the possible long-term coexistence of a terrestrial companion on an orbit ...
Antoniadou, Kyriaki I.   +1 more
core   +2 more sources

Long-Period Giant Companions to Three Compact, Multiplanet Systems [PDF]

open access: yes, 2019
Understanding the relationship between long-period giant planets and multiple smaller short-period planets is critical for formulating a complete picture of planet formation. This work characterizes three such systems. We present Kepler-65, a system with
Boisvert, John H.   +9 more
core   +3 more sources

Evolution of a Water-rich Atmosphere Formed by a Giant Impact on an Earth-sized Planet

open access: yesThe Astrophysical Journal, 2023
The atmosphere of a terrestrial planet that is replenished with secondary gases should have accumulated hydrogen-rich gas from its protoplanetary disk.
Kenji Kurosaki   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy