Zobrazeno 1 - 10
of 37
pro vyhledávání: '"He, Matthias Y."'
Autor:
Li, Megan G., Sheikh, Sofia Z., Gilbertson, Christian, He, Matthias Y., Isaacson, Howard, Croft, Steve, Sneed, Evan L.
Publikováno v:
The Astronomical Journal 166.5 (2023): 182
A stable-frequency transmitter with relative radial acceleration to a receiver will show a change in received frequency over time, known as a "drift rate''. For a transmission from an exoplanet, we must account for multiple components of drift rate:
Externí odkaz:
http://arxiv.org/abs/2311.01427
Fundamental to our understanding of planetary bulk compositions is the relationship between their masses and radii, two properties that are often not simultaneously known for most exoplanets. However, while many previous studies have modeled the two-
Externí odkaz:
http://arxiv.org/abs/2308.10615
Autor:
He, Matthias Y., Weiss, Lauren M.
Publikováno v:
The Astronomical Journal, 166:36 (12pp), 2023 July
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 multi-planet systems at short separations (
Externí odkaz:
http://arxiv.org/abs/2306.08846
Autor:
He, Matthias Y., Ford, Eric B.
A foundational idea in the theory of in situ planet formation is the "minimum mass extrasolar nebula" (MMEN), a surface density profile ($\Sigma$) of disk solids that is necessary to form the planets in their present locations. While most previous st
Externí odkaz:
http://arxiv.org/abs/2208.09031
Although the architectures of compact multiple-planet systems are well-characterized, there has been little examination of their "outer edges", or the locations of their outermost planets. Here we present evidence that the observed high-multiplicity
Externí odkaz:
http://arxiv.org/abs/2207.10068
Autor:
Millholland, Sarah C., He, Matthias Y., Ford, Eric B., Ragozzine, Darin, Fabrycky, Daniel, Winn, Joshua N.
Early analyses of exoplanet statistics from the Kepler Mission revealed that a model population of multiple-planet systems with low mutual inclinations (${\sim1^{\circ}-2^{\circ}}$) adequately describes the multiple-transiting systems but underpredic
Externí odkaz:
http://arxiv.org/abs/2106.15589
Population studies of Kepler's multi-planet systems have revealed a surprising degree of structure in their underlying architectures. Information from a detected transiting planet can be combined with a population model to make predictions about the
Externí odkaz:
http://arxiv.org/abs/2105.04703
Publikováno v:
AJ, 160, 276 (2020)
The angular momentum deficit (AMD) of a planetary system is a measure of its orbital excitation and a predictor of long-term stability. We adopt the AMD-stability criteria to constrain the orbital architectures for exoplanetary systems. Previously, H
Externí odkaz:
http://arxiv.org/abs/2007.14473
Publikováno v:
AJ, 161, 16 (2021)
The Kepler mission observed thousands of transiting exoplanet candidates around hundreds of thousands of FGK dwarf stars. He, Ford, & Ragozzine (2019) (arXiv:1907.07773) applied forward modeling to infer the distribution of intrinsic architectures of
Externí odkaz:
http://arxiv.org/abs/2003.04348
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 2019, 490, 4575-4605
Observations of exoplanetary systems provide clues about the intrinsic distribution of planetary systems, their architectures, and how they formed. We develop a forward modelling framework for generating populations of planetary systems and "observed
Externí odkaz:
http://arxiv.org/abs/1907.07773