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We have quantified the potential capabilities of detecting local brightness asymmetries in circumstellar disks with the Very Large Telescope Interferometer (VLTI) in the mid-infrared wavelength range. The study is motivated by the need to…

Solar and Stellar Astrophysics · Physics 2018-04-25 Robert Brunngräber , Sebastian Wolf

In this paper, we review the various ways in which an infrared stellar interferometer can be used to perform direct detection of extrasolar planetary systems. We first review the techniques based on classical stellar interferometry, where…

Instrumentation and Methods for Astrophysics · Physics 2015-03-17 O. Absil

$\textit{Context.}$ The magnetized Solar System planets are strong radio emitters and theoretical studies suggest that the radio emission from nearby exoplanets in close-in orbits could reach intensity levels $10^{3}-10^{7}$ times higher…

Earth and Planetary Astrophysics · Physics 2019-04-10 Jake D. Turner , Jean-Mathias Grießmeier , Philippe Zarka , Iaroslavna Vasylieva

The majority of searches for radio emission from exoplanets have to date focused on short period planets, i.e., the so-called hot Jupiter type planets. However, these planets are likely to be tidally locked to their host stars and may not…

Earth and Planetary Astrophysics · Physics 2018-05-02 Eamon O'Gorman , Colm P. Coughlan , Wouter Vlemmings , Eskil Varenius , Sandeep Sirothia , Tom P. Ray , Hans Olofsson

Detection of weak radial velocity shifts of host stars induced by orbiting planets is an important technique for discovering and characterizing planets beyond our solar system. Optical frequency combs enable calibration of stellar radial…

The probability of the detection of Earth-like exoplanets may increase in the near future after the launch of the space missions using the transit photometry as observation method. By using this technique only the semi-major axis of the…

Astrophysics · Physics 2009-11-11 Zsolt Sandor

Giant exoplanets on wide orbits have been directly imaged around young stars. If the thermal background in the mid-infrared can be mitigated, then exoplanets with lower masses can also be imaged. Here we present a ground-based mid-infrared…

Although many methods of detecting extra-solar planets have been proposed and successful implementation of some of these methods enabled a rapidly increasing number of exoplanet detections, little has been discussed about the method of…

Astrophysics · Physics 2009-11-07 Cheongho Han , Wonyong Han

The problem of the search for the satellites of the exoplanets (exomoons) is discussed recently. There are very many satellites in our Solar System. But in contrary of our Solar system, exoplanets have significant eccentricity. In process…

General Physics · Physics 2017-01-12 Alex Rosaev

Various methods have been proposed to search for extrasolar planets. Compared to the other methods, microlensing has unique applicabilities to the detections of Earth-mass and free-floating planets. However, the microlensing method is…

Exoplanets, or planets outside our own solar system, have long been of interest to astronomers; however, only in the past two decades have scientists had the technology to characterize and study planets so far away from us. With advanced…

Earth and Planetary Astrophysics · Physics 2018-05-09 Jason Wei

High contrast direct imaging of exoplanets can provide many important observables, including measurements of the orbit, spectra that probe the lower layers of the atmosphere, and phase variations of the planet, but cannot directly measure…

Earth and Planetary Astrophysics · Physics 2020-06-10 Christopher C. Stark , Courtney Dressing , Shannon Dulz , Eric Lopez , Mark S. Marley , Peter Plavchan , Johannes Sahlmann

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

Confirmation of the first exomoon remains elusive. Although several exomoon candidates exist around single stars, there are currently no candidates around circumbinary planets (CBPs). Most circumbinary planets are thought to form far from…

Earth and Planetary Astrophysics · Physics 2025-10-17 Ben R Gordon , Helena Buschermöhle , Wata Tubthong , David V. Martin , Sean Smallets , Grace Masiello , Liz Bergeron

Experience in exploring our own solar system has shown that direct investigation of planetary bodies using space probes invariably yields scientific knowledge not otherwise obtainable. In the case of exoplanets, such direct investigation…

Earth and Planetary Astrophysics · Physics 2019-02-06 Ian A. Crawford

The search for exomoons in time-domain photometric data has to-date generally consisted of fitting transit models that are comprised of a planet hosting a single moon. This simple model has its advantages, but it may not be particularly…

Earth and Planetary Astrophysics · Physics 2024-02-28 Alex Teachey , Garvit Agarwal

Characterizing habitable exoplanets and/or their moons is of paramount importance. Here we show the results of our magnetic field topological modeling which demonstrate that terrestrial exoplanet-exomoon coupled magnetospheres work together…

Earth and Planetary Astrophysics · Physics 2021-02-09 James Green , Scott Boardsen , Chuanfei Dong

The Exoplanet Tracker is a prototype of a new type of fibre-fed instrument for performing high precision relative Doppler measurements to detect extra-solar planets. A combination of Michelson interferometer and medium resolution…

Astrophysics · Physics 2009-11-10 J. C. van Eyken , J. Ge , S. Mahadevan , C. DeWitt

Moderately close binaries are a special class of targets for planet searches. From a theoretical standpoint, their hospitality to giant planets is uncertain and debated. From an observational standpoint, many of these systems present…

Earth and Planetary Astrophysics · Physics 2015-05-14 A. Eggenberger

The study of extrasolar planets has rapidly expanded to encompass the search for new planets, measurements of sizes and masses, models of planetary interiors, planetary demographics and occurrence frequencies, the characterization of…

Instrumentation and Methods for Astrophysics · Physics 2016-04-25 I. J. M. Crossfield