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Direct imaging searches for exoplanets around stars detect many spurious candidates that are in fact background field stars. To help distinguish these from genuine companions, multi-epoch astrometry can be used to identify a common proper…

Earth and Planetary Astrophysics · Physics 2023-12-11 Philipp Herz , Matthias Samland , Coryn A. L. Bailer-Jones

We present a prediction of the transiting exoplanet yield of the TESS primary mission, in order to guide follow-up observations and science projects utilizing TESS discoveries. Our new simulations differ from previous work by using (1) an…

Future direct imaging missions will primarily observe planets that have been previously detected, mostly via the radial velocity (RV) technique, to characterize planetary atmospheres. In the meantime, direct imaging may discover new planets…

Many attempts have already been made for detecting exomoons around transiting exoplanets but the first confirmed discovery is still pending. The experience that have been gathered so far allow us to better optimize future space telescopes…

Earth and Planetary Astrophysics · Physics 2016-03-09 A. E. Simon , Gy. M. Szabó , L. L. Kiss , A. Fortier , W. Benz

We present a technique for verifying or refuting exoplanet candidates from the Transiting Exoplanet Survey Satellite (TESS) mission by searching for nearby eclipsing binary stars using higher-resolution archival images from ground-based…

Earth and Planetary Astrophysics · Physics 2023-12-14 Gabrielle Ross , Andrew Vanderburg , Zoë L. de Beurs , Karen A. Collins , Rob J. Siverd , Kevin Burdge

Astrometry is less sensitive to stellar activity than the radial velocity technique when attempting to detect Earth mass planets in the habitable zone of solar-type stars. This is due to a smaller number of physical processes affecting the…

Earth and Planetary Astrophysics · Physics 2022-03-30 Nadège Meunier , Anne-Marie Lagrange

The Large Synoptic Survey Telescope (LSST) will photometrically monitor approximately 1 billion stars for ten years. The resulting light curves can be used to detect transiting exoplanets. In particular, as demonstrated by Lund et al.…

Earth and Planetary Astrophysics · Physics 2015-07-24 Savannah R. Jacklin , Michael B. Lund , Joshua Pepper , Keivan G. Stassun

We search for transiting exoplanets around the star $\beta$ Pictoris using high resolution spectroscopy and Doppler imaging that removes the need for standard star observations. These data were obtained on the VLT with UVES during the…

We develop a method for predicting the yield of transiting planets from a photometric survey given the parameters of the survey (nights observed, bandpass, exposure time, telescope aperture, locations of the target fields, observational…

Astrophysics · Physics 2009-11-13 Thomas G. Beatty , B. Scott Gaudi

Transit observations have found the majority of exoplanets to date. Spectroscopic observations of transits and eclipses are the most commonly used tool to characterize exoplanet atmospheres and will be used in the search for life. However,…

Earth and Planetary Astrophysics · Physics 2020-10-28 L. Kaltenegger , J. Pepper

To date, the ability for observers to reveal the composition or thermal structure of an exoplanet's atmosphere has rested on two techniques: high-contrast direct imaging and time-series observations of transiting exoplanets. The former is…

Earth and Planetary Astrophysics · Physics 2020-07-30 Kevin B. Stevenson

The search for planets orbiting other stars has recently expanded to include stars from galaxies outside the Milky Way. With the TESS and Gaia surveys, photometric and kinematic information can be combined to identify transiting planet…

Earth and Planetary Astrophysics · Physics 2022-09-07 Stephanie Yoshida , Samuel Grunblatt , Adrian Price-Whelan

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…

We explore the science power of space telescopes used to estimate the true masses of known radial-velocity exoplanets by means of astrometry on direct images. We translate a desired mass accuracy (+/10% in our example) into a minimum goal…

Instrumentation and Methods for Astrophysics · Physics 2015-06-11 Robert A. Brown

The detection of transits is an efficient technique to uncover faint companions around stars. The full characterisation of the companions (M-type stars, brown dwarfs or exoplanets) requires high-resolution spectroscopy to measure properly…

Astrophysics · Physics 2008-12-18 J. Gallardo , D. Minniti , D. Valls-Gabaud , M. Rejkuba

OGLE III and MOA II are discovering 600-1000 Galactic Bulge microlens events each year. This stretches the resources available for intensive follow-up monitoring of the lightcurves in search of anomalies caused by planets near the lens…

Earth and Planetary Astrophysics · Physics 2015-05-13 Keith Horne , Colin Snodgrass , Yianni Tsapras

Direct imaging of extra-solar planets has now become a reality, especially with the deployment and commissioning of the first generation of specialized ground-based instruments such as the GPI, SPHERE, P1640 and SCExAO. These systems will…

Instrumentation and Methods for Astrophysics · Physics 2015-06-22 Sandrine J. Thomas , Ruslan Belikov , Eduardo Bendek

We present a novel machine-learning approach for detecting faint point sources in high-contrast adaptive optics imaging datasets. The most widely used algorithms for primary subtraction aim to decouple bright stellar speckle noise from…

Instrumentation and Methods for Astrophysics · Physics 2023-12-07 Trevor N. Wolf , Brandon A. Jones , Brendan P. Bowler

The ESA PLATO space mission is devoted to unveiling and characterizing new extrasolar planets and their host stars. This mission will encompass a very large field of view, granting it the potential to survey up to one million stars…

Instrumentation and Methods for Astrophysics · Physics 2019-07-03 V. Marchiori , R. Samadi , F. Fialho , C. Paproth , A. Santerne , M. Pertenais , A. Börner , J. Cabrera , A. Monsky , N. Kutrowski

Due to their extremely small luminosity compared to the stars they orbit, planets outside our own Solar System are extraordinarily difficult to detect directly in optical light. Careful photometric monitoring of distant stars, however, can…

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