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The Kepler mission enabled us to look at the intrinsic population of exoplanets within our galaxy. In period-radius space, the distribution of the intrinsic population of planets contains structure that can trace planet formation and…

Earth and Planetary Astrophysics · Physics 2024-04-24 Anne Dattilo , Natalie M. Batalha

Compact multi-planet systems containing super-Earths or sub-Neptunes, commonly found around solar-type stars, may be surrounded by external giant planet or stellar companions, which can shape the architechture and observability of the inner…

Earth and Planetary Astrophysics · Physics 2021-03-23 Bonan Pu , Dong Lai

A series of dynamical anomalies in the orbits of distant trans-Neptunian objects points to a new celestial body (usually named Planet Nine) in the solar system. In this draft, we point out that a mirror planet captured from the outer solar…

Earth and Planetary Astrophysics · Physics 2022-10-11 Pei Wang , Yu Chen Tang , Lei Zu , Yuan Yuan Chen , Lei Feng

Orbital evolution of an interplanetary dust particle under action of an interstellar gas flow is investigated. Secular time derivatives of the particle orbital elements, for arbitrary orbit orientation, are presented. An important result…

Earth and Planetary Astrophysics · Physics 2014-07-01 P. Pastor , J. Klacka , L. Komar

The scattering of small bodies by planets is an important dynamical process in planetary systems. We present an analytical model to describe this process using the simplifying assumption that each particle's dynamics is dominated by a…

Earth and Planetary Astrophysics · Physics 2015-06-03 A. Bonsor , M. C. Wyatt

We use a secular representation to describe the long-term dynamics of transneptunian objects in mean-motion resonance with Neptune. The model applied is thoroughly described in Saillenfest et al. (2016). The parameter space is…

Earth and Planetary Astrophysics · Physics 2016-11-15 Melaine Saillenfest , Marc Fouchard , Giacomo Tommei , Giovanni B. Valsecchi

The link between the dynamical evolution of the giant planets and the Kuiper Belt orbital structure can provide clues and insight about the dynamical history of the Solar System. The classical region of the Kuiper Belt has two populations…

Earth and Planetary Astrophysics · Physics 2019-12-17 Rafael Ribeiro de Sousa , Rodney Gomes , Alessandro Morbidelli , Ernesto Vieira Neto

The orbital distribution of transneptunian objects (TNOs) in the distant Kuiper Belt (with semimajor axes beyond the 2:1 resonance, roughly $a$=50-100 au) provides constraints on the dynamical history of the outer solar system. Recent…

Earth and Planetary Astrophysics · Physics 2022-10-27 Yukun Huang , Brett Gladman , Matthew Beaudoin , Kevin Zhang

The detached object Sedna is likely at the inner edge of the Oort cloud, more precisely the inner Oort cloud (IOC). Until recently it was the sole member of this population. The recent discovery of the detached object 2012 VP113 has…

Earth and Planetary Astrophysics · Physics 2015-06-23 R. Brasser , M. E. Schwamb

This chapter reviews accretion models for Kuiper belt objects (KBOs), discussing in particular the compatibility of the observed properties of the KBO population with the streaming instability paradigm. Then it discusses how the dynamical…

Earth and Planetary Astrophysics · Physics 2020-01-22 Alessandro Morbidelli , David Nesvorny

The dynamical structure of the Kuiper belt beyond 50 au is not well understood. Here we report results of a numerical model with long-range, slow and grainy migration of Neptune. The model implies that bodies scattered outward by Neptune to…

Earth and Planetary Astrophysics · Physics 2016-08-31 David Nesvorny , David Vokrouhlicky , Fernando Roig

The orbital evolution and stability of planetary systems with interaction from the belts is studied using the standard phase-plane analysis. In addition to the fixed point which corresponds to the Keplerian orbit, there are other fixed…

Astrophysics · Physics 2015-06-24 Ing-Guey Jiang , Li-Chin Yeh

The eccentric shape of the debris disk observed around Fomalhaut was first attributed to Fom b, a companion detected near the belt inner-edge, but new constraints on its orbit revealed that it is belt-crossing, highly eccentric $(e \sim…

Earth and Planetary Astrophysics · Physics 2014-12-24 Virginie Faramaz , Hervé Beust , Jean-Charles Augereau , Paul Kalas , James R. Graham

We present a procedure for determination of positions and orbital elements, and associated uncertainties, of outer Solar System planets. The orbit-fitting procedure is greatly streamlined compared to traditional methods because acceleration…

Astrophysics · Physics 2009-10-31 G. Bernstein , B. Khushalani

The dust measured in debris disks traces the position of planetesimal belts. In our Solar System, we are also able to measure the largest planetesimals directly and can extrapolate down to make an estimate of the dust. The zodiacal dust…

Earth and Planetary Astrophysics · Physics 2014-05-14 S. M. Lawler , the CFEPS Team

Disks of bodies orbiting a much more massive central object are extremely common in astrophysics. When the orbits comprising such disks are eccentric, we show they are susceptible to a new dynamical instability. Gravitational forces between…

Earth and Planetary Astrophysics · Physics 2016-02-03 Ann-Marie Madigan , Michael McCourt

Objects in the Kuiper belt are small and far away thus difficult to study in detail even with the best telescopes available at earth. For much of the early history of the Kuiper belt, studies of the compositions of these objects were…

Earth and Planetary Astrophysics · Physics 2015-06-03 Michael E. Brown

Many extrasolar systems possessing planets in mean-motion resonance or resonant chain have been discovered to date. The transit method coupled with transit timing variation analysis provides an insight into the physical and orbital…

Earth and Planetary Astrophysics · Physics 2020-08-19 Kyriaki I. Antoniadou , Anne-Sophie Libert

Batygin and Brown (2016) have suggested the existence of a new Solar System planet supposed to be responsible for the perturbation of eccentric orbits of small outer bodies. The main challenge is now to detect and characterize this putative…

Earth and Planetary Astrophysics · Physics 2017-08-30 Jean Schneider

The Oort cloud is presumably a pristine relic of the Solar System formation. Detection of the Oort cloud may provide information regarding the stellar environment in which the Sun was born and on the planetesimal population during the outer…

Instrumentation and Methods for Astrophysics · Physics 2024-09-05 Eran O. Ofek , Sarah A. Spitzer , Guy Nir