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Related papers: Debiasing the Minimum-Mass Extrasolar Nebula: On t…

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We investigate a possible correlation between the solid surface density $\Sigma$ of the minimum-mass extrasolar nebulae (MMEN) and the host star mass $M_\star$ and metallicity [Fe/H]. Leveraging on the precise host star properties from the…

Earth and Planetary Astrophysics · Physics 2020-05-13 Fei Dai , Joshua N. Winn , Kevin Schlaufman , Songhu Wang , Lauren Weiss , Erik A. Petigura , Andrew W. Howard , Min Fang

It has been proposed that the observed systems of hot super-Earths formed in situ from high-mass disks. By fitting a disk profile to the entire population of Kepler planet candidates, Chiang & Laughlin (2013) constructed a "minimum-mass…

Earth and Planetary Astrophysics · Physics 2015-06-18 Sean N. Raymond , Christophe Cossou

By analogy with the minimum-mass solar nebula, we construct a surface-density profile using the orbits of the 26 precise-Doppler planets found in multiple planet systems: Sigma = 2200 grams per square centimeter (a/1 AU)^- beta, where a is…

Astrophysics · Physics 2009-11-10 Marc J. Kuchner

Close-in super-Earths, with radii R = 2-5 R_Earth and orbital periods P < 100 days, orbit more than half, and perhaps nearly all Sun-like stars in the universe. We use this omnipresent population to construct the minimum-mass extrasolar…

Earth and Planetary Astrophysics · Physics 2015-06-12 E. Chiang , G. Laughlin

The ``minimum-mass solar nebula'' (MMSN) model estimates the surface density distribution of the protoplanetary disk by assuming the planets to have formed in situ. However, significant radial migration of the giant planets likely occurred…

Astrophysics · Physics 2008-11-26 Sean N. Raymond , Thomas Quinn , Jonathan I. Lunine

In order to explain the main characteristics of the observed population of extrasolar planets and the giant planets in the Solar System, we need to get a clear understanding of which are the initial conditions that allowed their formation.…

Earth and Planetary Astrophysics · Physics 2015-05-20 Yamila Miguel , Octavio M. Guilera , Adrián Brunini

Recently revealed differences in planets around M dwarf vs. solar-type stars could arise from differences in their primordial disks, and surveys of T Tauri stars find a correlation between stellar mass and disk mass. "Minimum" disks have…

Earth and Planetary Astrophysics · Physics 2017-06-21 E. Gaidos

Recent observations by the {\it Kepler} space telescope have led to the discovery of more than 4000 exoplanet candidates consisting of many systems with Earth- to Neptune-sized objects that reside well inside the orbit of Mercury, around…

Earth and Planetary Astrophysics · Physics 2015-06-23 Hilke E. Schlichting

The Minimum Mass Solar Nebula (MMSN) is a protoplanetary disk that contains the minimum amount of solids necessary to build the planets of the Solar System. Assuming that the giant planets formed in the compact configuration they have at…

Earth and Planetary Astrophysics · Physics 2011-02-11 A. Crida

The compact multi-transiting planet systems discovered by Kepler challenge planet formation theories. Formation in situ from disks with radial mass surface density, $\Sigma$, profiles similar to the minimum mass solar nebula (MMSN) but…

Earth and Planetary Astrophysics · Physics 2015-06-16 Sourav Chatterjee , Jonathan C. Tan

Current planet formation theories provide successful frameworks with which to interpret the array of new observational data in this field. However, each of the two main theories (core accretion, gravitational instability) is unable to…

Earth and Planetary Astrophysics · Physics 2018-03-21 C. J. Nixon , A. R. King , J. E. Pringle

The recent development of a new minimum mass solar nebula, under the assumption that the giant planets formed in the compact configuration of the Nice model, has shed new light on planet formation in the solar system. Desch previously found…

Earth and Planetary Astrophysics · Physics 2015-05-19 Tyler R. Mitchell , Glen R. Stewart

Measured disk masses seem to be too low to form the observed population of planetary systems. In this context, we develop a population synthesis code in the pebble accretion scenario, to analyse the disk mass dependence on planet formation…

Earth and Planetary Astrophysics · Physics 2020-10-07 Spandan Dash , Yamila Miguel

We present basic properties of protostellar disks in the embedded phase of star formation (EPSF), which is difficult to probe observationally using available observational facilities. We use numerical hydrodynamics simulations of cloud core…

Solar and Stellar Astrophysics · Physics 2015-05-27 Eduard I. Vorobyov

Kepler has identified over 600 multiplanet systems, many of which have several planets with orbital distances smaller than that of Mercury -- quite different from the Solar System. Because these systems may be difficult to explain in the…

Earth and Planetary Astrophysics · Physics 2015-06-18 Kevin C. Schlaufman

We compile a sample of 341 binary and multiple star systems with the aim of searching for and characterising Kuiper belt-like debris discs. The sample is assembled by combining several smaller samples studied in previously published work…

Earth and Planetary Astrophysics · Physics 2019-07-17 Ben Yelverton , Grant M. Kennedy , Kate Y. L. Su , Mark C. Wyatt

One of the most important developments in exoplanet science in the past decade is the discovery of multi-planet systems with sub-Neptune-sized planets interior to 1~AU. This chapter explores the architectures of these planetary systems,…

The discovery of over 400 extrasolar planets allows us to statistically test our understanding of formation and dynamics of planetary systems via numerical simulations. Traditional N-body simulations of multiple-planet systems without gas…

Earth and Planetary Astrophysics · Physics 2014-11-18 Soko Matsumura , Edward W. Thommes , Sourav Chatterjee , Frederic A. Rasio

The number of stars that are known to have debris disks is greater than that of stars known to harbour planets. These disks are detected because dust is created in the destruction of planetesimals in the disks much in the same way that dust…

Astrophysics · Physics 2008-07-09 M. C. Wyatt

Planet perturbations are often invoked as a potential explanation for many spatial structures that have been imaged in debris discs. So far this issue has been mostly investigated with collisionless N-body numerical models. We numerically…

Earth and Planetary Astrophysics · Physics 2015-06-11 Philippe Thebault , Quentin Kral , Steve Ertel
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