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The probability of detecting a planetary companion of a lensing star during a microlensing event toward the Galactic center, averaged over all relevant event and galactic parameters, when the planet-star mass ratio $q=0.001$ has a maximum…

Astrophysics · Physics 2009-11-06 S. J. Peale

Direct imaging simulations of starshades and other proposed mission concepts are needed to characterize planet detection performance and inform mission design trades. In order to assess the complementary role of a 60 m starshade for the…

Instrumentation and Methods for Astrophysics · Physics 2025-11-20 Jamila Taaki , Farzad Kamalabadi , Athol Kemball , Lia Corrales , Alfred O. Hero

Gravitational microlensing provides a unique window on the properties and prevalence of extrasolar planetary systems because of its ability to find low-mass planets at separations of a few AU. The early evidence from microlensing indicates…

Earth and Planetary Astrophysics · Physics 2015-05-13 David P. Bennett

The discovery of extra-solar planets is one of the greatest achievements of modern astronomy. The detection of planets with a wide range of masses demonstrates that extra-solar planets of low mass exist. In this paper we describe a mission,…

To understand the potential for observing forming planets and their circumplanetary disks (CPDs) with JWST and ELT, we created mock observations from 3D radiative hydrodynamic simulations and radiative transfer post-processing for planets…

Earth and Planetary Astrophysics · Physics 2022-08-03 Xueqing Chen , Judit Szulágyi

A large number of direct imaging surveys for exoplanets have been performed in recent years, yielding the first directly imaged planets and providing constraints on the prevalence and distribution of wide planetary systems. However, like…

Earth and Planetary Astrophysics · Physics 2016-09-07 Mariangela Bonavita , Silvano Desidera , Christian Thalmann , Markus Janson , Arthur Vigan , Gael Chauvin , Justine Lannier

(abridged) We present results from a detailed set of end-to-end numerical simulations of SIM narrow-angle astrometric measurements and data analysis to illustrate the enormous potential that SIM has for the discovery and characterization of…

Astrophysics · Physics 2009-11-07 A. Sozzetti , S. Casertano , R. A. Brown , M. G. Lattanzi

The Large Synoptic Survey Telescope (LSST) has been designed in order to satisfy several different scientific objectives that can be addressed by a ten-year synoptic sky survey. However, LSST will also provide a large amount of data that…

Earth and Planetary Astrophysics · Physics 2015-06-22 Michael B. Lund , Joshua Pepper , Keivan G. Stassun

We investigate directly imaging exoplanets around eclipsing binaries, using the eclipse as a natural tool for dimming the binary and thus increasing the planet to star brightness contrast. At eclipse, the binary becomes point-like, making…

Earth and Planetary Astrophysics · Physics 2020-09-02 Stefano Bellotti , Ann Zabludoff , Ruslan Belikov , Olivier Guyon , Chirag Rathi

The James Webb Space Telescope (JWST) has provided the first opportunity to study the atmospheres of terrestrial exoplanets and estimate their surface conditions. Earth-sized planets around Sun-like stars are currently inaccessible with…

One proposed method for finding terrestrial planets around nearby stars is to use two spacecraft--a telescope and a specially shaped occulter that is specifically designed to prevent all but a tiny fraction of the starlight from diffracting…

Astrophysics · Physics 2009-06-23 R. J. Vanderbei , N. J. Kasdin , E. Cady

We investigate potential biases in the measurements of exoplanet orbital parameters obtained from radial velocity observations for single-planet systems. We create a mock catalog of radial velocity data, choosing input planet masses,…

Earth and Planetary Astrophysics · Physics 2015-05-19 Nadia L. Zakamska , Margaret Pan , Eric B. Ford

Current and future space-based observatories such as the Transiting Exoplanet Survey Satellite (TESS) and PLATO are set to provide an enormous amount of new data on oscillating stars, and in particular stars that oscillate similar to the…

Solar and Stellar Astrophysics · Physics 2022-07-20 M. B. Nielsen , E. Hatt , W. J. Chaplin , W. H. Ball , G. R. Davies

Both direct and indirect methods of exoplanet detection rely upon detailed knowledge of the potential host stars. Such stellar characterization allows for accurate extraction of planetary properties, as well as contributing to our overall…

Earth and Planetary Astrophysics · Physics 2023-07-26 Emilie R. Simpson , Tara Fetherolf , Stephen R. Kane , Joshua Pepper , Teo Mocnik , Paul A. Dalba

Among various techniques to search for extra-solar planets, microlensing has some unique characteristics. Contrary to all other methods which favour nearby objects, microlensing is sensitive to planets around stars at distances of several…

Due to the importance that the star-planet relation has to our understanding of the planet formation process, the precise determination of stellar parameters for the ever increasing number of discovered extra-solar planets is of great…

Solar and Stellar Astrophysics · Physics 2015-06-16 N. C. Santos , S. G. Sousa , A. Mortier , V. Neves , V. Adibekyan , M. Tsantaki , E. Delgado Mena , X. Bonfils , G. Israelian , M. Mayor , S. Udry

Photometry with the transit method has arguably been the most successful exoplanet discovery method to date. A short overview about the rise of that method to its present status is given. The method's strength is the rich set of parameters…

Earth and Planetary Astrophysics · Physics 2024-03-13 Hans J. Deeg , Roi Alonso

Locating planets in circumstellar Habitable Zones is a priority for many exoplanet surveys. Space-based and ground-based surveys alike require robust toolsets to aid in target selection and mission planning. We present the Catalog of…

Earth and Planetary Astrophysics · Physics 2016-08-09 Colin Orion Chandler , Iain McDonald , Stephen R. Kane

Long range observations in the field of astronomy have opened up our understanding of the Solar System, the Galaxy and the wider Universe. In this paper we discuss the idea of direct in-situ reconnaissance of nearby stellar systems, using…

Popular Physics · Physics 2019-01-15 Kelvin F Long