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Related papers: Synthesizing Exoplanet Demographics from Radial Ve…

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In contrast to radial velocity surveys, results from microlensing surveys indicate that giant planets with masses greater than the critical mass for core accretion ($\sim 0.1~M_{\rm Jup}$) are relatively common around low-mass stars. Using…

Earth and Planetary Astrophysics · Physics 2015-06-19 Christian Clanton , Scott Gaudi

We present the first study to synthesize results from five different exoplanet surveys using three independent detection methods: microlensing, radial velocity, and direct imaging. The constraints derived herein represent the most…

Earth and Planetary Astrophysics · Physics 2016-03-23 Christian Clanton , B. Scott Gaudi

We present a framework for estimating exoplanet occurrence rates by synthesizing constraints from radial velocity and transit surveys simultaneously. We employ approximate Bayesian computation and various mass-radius (M-R) relations to…

Earth and Planetary Astrophysics · Physics 2021-01-20 Michelle Kunimoto , Steve Bryson

A space-based gravitational microlensing exoplanet survey will provide a statistical census of exoplanets with masses down to 0.1 Earth-masses and orbital separations ranging from 0.5AU to infinity. This includes analogs to all the Solar…

Results from gravitational microlensing suggested the existence of a large population of free-floating planetary mass objects. The main conclusion from this work was partly based on constraints from a direct imaging survey. This survey…

Astrophysics of Galaxies · Physics 2015-06-04 Sascha P. Quanz , David Lafreniere , Michael R. Meyer , Maddalena M. Reggiani , Esther Buenzli

A space-based gravitational microlensing exoplanet survey will provide a statistical census of exoplanets with masses greater than 0.1 Earth-masses and orbital separations ranging from 0.5AU to infinity. This includes analogs to all the…

The MPF mission will provide a statistical census of exoplanets with masses greater than 0.1 Earth-masses and orbital separations ranging from 0.5AU to infinity. This includes analogs to all the Solar System's planets except for Mercury, as…

Exoplanets can be detected with various observational techniques. Among them, radial velocity (RV) has the key advantages of revealing the architecture of planetary systems and measuring planetary mass and orbital eccentricities. RV…

Instrumentation and Methods for Astrophysics · Physics 2023-08-02 Nathan C. Hara , Eric B. Ford

Planet formation is sensitive to the conditions in protoplanetary disks, for which scaling laws as a function of stellar mass are known. We aim to test whether the observed population of planets around low-mass stars can be explained by…

Doppler-based planet surveys have discovered numerous giant planets but are incomplete beyond several AU. At larger star-planet separations, direct planet detection through high-contrast imaging has proven successful, but this technique is…

Earth and Planetary Astrophysics · Physics 2014-01-23 Benjamin T. Montet , Justin R. Crepp , John Asher Johnson , Andrew W. Howard , Geoffrey W. Marcy

Microlensing can be used to discover exoplanets of a wide range of masses with orbits beyond ~ 1 AU, and even free-floating planets. The WFIRST mission will use microlensing to discover approximately 1600 planets by monitoring ~100 million…

Earth and Planetary Astrophysics · Physics 2021-01-12 Somayeh Khakpash , Matthew Penny , Joshua Pepper

The census of planets around M dwarfs in the solar neighbourhood meets two challenges: detecting the best targets for the future characterisation of planets with ELTs, and studying the statistics of planet occurrence that are crucial to…

The ubiquity of M dwarf stars combined with their low masses and luminosities make them prime targets in the search for nearby, habitable exoplanets. We investigate the effects of starspot-induced radial velocity (RV) jitter on detection…

Solar and Stellar Astrophysics · Physics 2015-06-23 Jan Marie Andersen , Heidi Korhonen

Microlensing is the most promising method to study the statistical frequency of extra-solar planets orbiting typical (random) stars in the Milky Way, even those several kiloparsecs from Earth. The lensing zone corresponds to orbital…

Astrophysics · Physics 2009-09-25 Penny D. Sackett

This is the second paper in a series of papers showing the results of extrasolar planet population synthesis calculations. In the companion paper (Paper I), we have presented in detail our methods. By applying an observational detection…

Earth and Planetary Astrophysics · Physics 2015-05-13 Christoph Mordasini , Yann Alibert , Willy Benz , Dominique Naef

The number of exoplanets detected using gravitational microlensing technique is currently larger than 200, which enables population studies. Microlensing is uniquely sensitive to low-mass planets orbiting at separations of several…

Earth and Planetary Astrophysics · Physics 2024-06-05 P. Mroz , R. Poleski

We show that a space-based gravitational microlensing survey for terrestrial extra-solar planets is feasible in the near future, and could provide a nearly complete picture of the properties of planetary systems in our Galaxy. We present…

Astrophysics · Physics 2009-10-31 David P. Bennett , Sun Hong Rhie

The radial velocity (RV) technique is a powerful tool for detecting extrasolar planets and deriving mass detection limits that are useful for constraining planet pulsations and formation models. Detection limit methods must take into…

Earth and Planetary Astrophysics · Physics 2015-06-05 Nadège Meunier , Anne-Marie Lagrange , Katrien De Bondt

We propose and evaluate the feasibility of a new strategy to search for planets via microlensing observations. This new strategy is designed to detect planets in "wide" orbits, i.e., with orbital separation, a, greater than ~1.5 R_E.…

Astrophysics · Physics 2007-05-23 Rosanne Di Stefano , Richard A. Scalzo

Empirical exoplanet mass-radius relations have been used to study the demographics and compositions of small exoplanets for many years. However, the heterogeneous nature of these measurements hinders robust statistical analysis of this…

Earth and Planetary Astrophysics · Physics 2024-12-25 H. L. M. Osborne , L. D. Nielsen , V. Van Eylen , O. Barragán
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