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Ground-based photometric surveys have led to the discovery of six transiting exoplanets, five of which were detected by the OGLE survey. The FLAMES multi-object spectrograph on the VLT has permitted a very efficient follow-up of the OGLE…

Astrophysics · Physics 2007-05-23 Frederic Pont

A unique analytical solution of planet and star parameters can be derived from an extrasolar planet transit light curve under a number of assumptions. This analytical solution can be used to choose the best planet transit candidates for…

Astrophysics · Physics 2007-05-23 S. Seager , G. Mallen-Ornelas

The Transiting Exoplanet Survey Satellite (TESS) is surveying a large fraction of the sky, generating a vast database of photometric time series data that requires thorough analysis to identify exoplanetary transit signals. Automated…

Earth and Planetary Astrophysics · Physics 2025-04-15 Helem Salinas , Rafael Brahm , Greg Olmschenk , Richard K. Barry , Karim Pichara , Stela Ishitani Silva , Vladimir Araujo

The search for extrasolar planets is strongly motivated by the goal of characterizing how frequent habitable worlds and life may be within the Galaxy. Whilst much effort has been spent on searching for Earth-like planets, large moons may…

Earth and Planetary Astrophysics · Physics 2015-03-19 David M. Kipping

Gaudi, Naber & Sackett pointed out that if an event is caused by a lens system containing more than two planets, all planets will affect the central region of the magnification pattern, and thus the existence of the multiple planets can be…

Astrophysics · Physics 2017-01-18 Cheongho Han , Myeong-Gu Park

We present a theoretical analysis of the optical light curves (LCs) for short-period high-mass transiting extrasolar planet systems. Our method considers the primary transit, the secondary eclipse, and the overall phase shape of the LC…

Earth and Planetary Astrophysics · Physics 2015-06-03 D. Mislis , R. Heller , J. H. M. M. Schmitt , S. Hodgkin

JWST's unprecedented sensitivity enables precise spectrophotometric monitoring of substellar worlds, revealing atmospheric variability driven by mechanisms operating across different pressure levels. This same precision now permits…

Measuring the stellar rotation of one of the components in eclipsing binaries (EBs) or planetary systems is a challenging task. The difficulty is mainly due to the complexity of analyzing, in the same light curve, the signal from the…

The majority of exoplanets found to date have been discovered via the transit method, and transmission spectroscopy represents the primary method of studying these distant worlds. Currently, in-depth atmospheric characterization of…

In the late 1990s, the Optical Gravitational Lensing Experiment (OGLE) team conducted the second phase of their long-term monitoring programme, OGLE-II, which since has been superseded by OGLE-III. All the monitoring data of this second…

Astrophysics · Physics 2009-11-13 I. Snellen , R. van der Burg , M. de Hoon , F. Vuijsje

The statistical validation of transiting exoplanets proved to be an efficient technique to secure the nature of small exoplanet signals which cannot be established by purely spectroscopic means. However, the spectroscopic diagnoses are…

Earth and Planetary Astrophysics · Physics 2015-05-12 A. Santerne , R. F. Díaz , J. -M. Almenara , F. Bouchy , M. Deleuil , P. Figueira , G. Hébrard , C. Moutou , S. Rodionov , N. C. Santos

The transit timing variation technique (TTV) has been widely used to detect and characterize multiple planetary systems. Due to the observational biases imposed mainly by the photometric conditions and instrumentation and the high…

Earth and Planetary Astrophysics · Physics 2016-07-14 C. von Essen , S. Cellone , M. Mallonn , B. Tingley , M. Marcussen

We describe a project (transitsearch.org) currently attempting to discover transiting intermediate-period planets orbiting bright parent stars, and we simulate that project's performance. The discovery of such a transit would be an…

Astrophysics · Physics 2009-11-10 Scott Seagroves , Justin Harker , Gregory Laughlin , Justin Lacy , Tim Castellano

Transit timing variations - deviations from strict periodicity between successive passages of a transiting planet - can be used to probe the structure and dynamics of multiple-planet systems. In this paper, we examine prospects for…

Earth and Planetary Astrophysics · Physics 2015-05-19 Stefano Meschiari , Gregory Laughlin

To address the the problem of calibration of instrument systematics in transit light curves, we present the Python package ExoTiC-ISM. Transit spectroscopy can reveal many different chemical components in exoplanet atmospheres, but such…

Instrumentation and Methods for Astrophysics · Physics 2020-07-16 Iva Laginja , Hannah R. Wakeford

Here we describe a story behind the discovery of Kepler-46, which was the first exoplanetary system detected and characterized from a method known as the transit timing variations (TTVs). The TTV method relies on the gravitational…

Earth and Planetary Astrophysics · Physics 2019-07-17 David Nesvorny

Space-based photometric surveys have discovered large numbers of planets transiting other stars, but these observe in a single band-pass and yield only the planet radius, orbital period, and transit duration. Information on the masses,…

Earth and Planetary Astrophysics · Physics 2017-05-03 E. Gaidos , D. Kitzmann , K. Heng

Transit timing variations (TTVs) can provide useful information for systems observed by transit, as they allow us to put constraints on the masses and eccentricities of the observed planets, or even to constrain the existence of…

Earth and Planetary Astrophysics · Physics 2021-11-15 A. Leleu , G. Chatel , S. Udry , Y. Alibert , J. -B. Delisle , R. Mardling

Instrumentation designed to characterize potentially habitable planets may combine adaptive optics and high-resolution spectroscopy techniques to achieve the highest possible sensitivity to spectral signs of life. Detecting the weak signal…

Instrumentation and Methods for Astrophysics · Physics 2018-11-13 Garreth Ruane , Ji Wang , Dimitri Mawet , Nemanja Jovanovic , Jacques-Robert Delorme , Bertrand Mennesson , J. Kent Wallace

Previous work has demonstrated that the Large Synoptic Survey Telescope (LSST) has the capability to detect transiting planets around main sequence stars in relatively short ($<$ 20 days) periods and using standard algorithms for transit…

Earth and Planetary Astrophysics · Physics 2018-10-01 Michael B. Lund , Joshua A. Pepper , Avi Shporer , Keivan G. Stassun
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