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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

The discovery of over 200 extrasolar planets with the radial velocity (RV) technique has revealed that many giant planets have large eccentricities, in striking contrast with most of the planets in the solar system and prior theories of…

Astrophysics · Physics 2008-12-10 Eric B. Ford , Samuel N. Quinn , Dimitri Veras

We investigate the rate of false planetary transit detection due to blending with eclipsing binaries. Our approach is purely empirical and is based on the analysis of the artificially blended light curves of the eclipsing binary stars in…

Astrophysics · Physics 2007-05-23 Géza Kovács , Gáspár Bakos

When exoplanets pass in front of their stars, they imprint a transit signature on the stellar light curve which to date has been assumed to be symmetric in time, owing to the planet being modelled as a circular area occulting the stellar…

Instrumentation and Methods for Astrophysics · Physics 2021-07-01 Kathryn Jones , Néstor Espinoza

Arnold (2005), Forgan (2013), and Korpela et al. (2015) noted that planet-sized artificial structures could be discovered with Kepler as they transit their host star. We present a general discussion of transiting megastructures, and…

Earth and Planetary Astrophysics · Physics 2016-01-13 Jason T. Wright , Kimberly M. S. Cartier , Ming Zhao , Daniel Jontof-Hutter , Eric B. Ford

The properties of a transiting planet's host star are written in its transit light curve. The light curve can reveal the stellar density and the limb darkening profile in addition to the characteristics of the planet and its orbit. For…

Earth and Planetary Astrophysics · Physics 2017-11-29 Emily Sandford , David Kipping

Several studies have shown that stellar activity features, such as occulted and non-occulted starspots, can affect the measurement of transit parameters biasing studies of transit timing variations and transmission spectra. We present…

Earth and Planetary Astrophysics · Physics 2018-02-14 Ines G. Juvan , M. Lendl , P. E. Cubillos , L. Fossati , J. Tregloan-Reed , H. Lammer , E. W. Guenther , A. Hanslmeier

Direct imaging of exoplanets will allow us to directly observe the planet in reflected light. Such a scenario may eventually allow for the possibility to scan the planetary surface for the presence of artificial structures made by alien…

Earth and Planetary Astrophysics · Physics 2023-06-14 Bhavesh Jaiswal

We present exact analytic formulae for the eclipse of a star described by quadratic or nonlinear limb darkening. In the limit that the planet radius is less than a tenth of the stellar radius, we show that the exact lightcurve can be well…

Astrophysics · Physics 2009-11-07 Kaisey Mandel , Eric Agol

Rings around giant exoplanets (hereafter 'exorings') are still a missing planetary phenomenon among the vast number of discovered planets. Despite the fact there exist a large number of methods for identifying and characterizing these…

Earth and Planetary Astrophysics · Physics 2020-05-20 Mario Sucerquia , Jaime A. Alvarado-Montes , Jorge I. Zuluaga , Matías Montesinos , Amelia Bayo

Transiting planet lightcurves have historically been used predominantly for measuring the depth and hence ratio of the planet-star radii, p. Equations have been previously presented by Seager & Mallen-Ornelas (2003) for the analysis of the…

Astrophysics · Physics 2009-11-13 David M. Kipping

We developed a dedicated statistical test for a massive detection of spot- and facula-crossing anomalies in multiple exoplanetary transit lightcurves, based on the frequentist $p$-value thresholding. This test was used to augment our…

In the blooming field of exoplanetary science, NASA's Kepler Space Telescope has revolutionized our understanding of exoplanets. Kepler's very precise and long-duration photometry is ideal for detecting planetary transits around Sun-like…

Earth and Planetary Astrophysics · Physics 2017-01-18 Giacomo Fragione , Idan Ginsburg

With several detections, the technique of gravitational microlensing has proven useful for studying planets that orbit stars at Galactic distances, and it can even be applied to detect planets in neighbouring galaxies. So far, planet…

Astrophysics · Physics 2010-11-02 S. Rahvar , M. Dominik

Teleportation, introduced in science fiction literature, is an instantaneous change of the position of a macroscopic object. Two teleportation-like phenomena have been predicted by quantum mechanics: quantum teleportation and, more…

Nuclear Theory · Physics 2025-07-31 Marek Gazdzicki , Daniel Kikola , Ivan Pidhurskyi , Leonardo Tinti

It is shown herein that planets with eccentric orbits are more likely to transit than circularly orbiting planets with the same semimajor axis by a factor of (1-e^2)^{-1}. If the orbital parameters of discovered transiting planets are…

Astrophysics · Physics 2009-11-13 Jason W. Barnes

The disciplines of asteroseismology and extrasolar planet science overlap methodically in the branch of high-precision photometric time series observations. Light curves are, amongst others, useful to measure intrinsic stellar variability…

Solar and Stellar Astrophysics · Physics 2010-05-20 Sonja Schuh

Planetary transits provide a unique opportunity to investigate the surface distributions of star spots. Our aim is to determine if, with continuous observation (such as the data that will be provided by the Kepler mission), we can in…

Earth and Planetary Astrophysics · Physics 2015-06-04 J. Llama , M. Jardine , D. H. Mackay , R. Fares

An overview is given of the Permanent All Sky Survey (PASS) project. The primary goal of PASS is the detection of all transiting giant planets in the entire sky, complete for stellar systems of magnitudes ~ 5.5-10.5. Since the sample stars…

We assess a physically feasible explanation for the low number of discovered (near-)grazing planetary transits through all ground and space based transit surveys. We performed simulations to generate the synthetic distribution of detectable…

Earth and Planetary Astrophysics · Physics 2015-10-28 M. Oshagh , N. C. Santos , P. Figueira , V. Zh. Adibekyan , A. Santerne , S. C. C. Barros , J. J. G. Lima