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Related papers: Observing NY Vir and the quest for circumbinary pl…

200 papers

In 2009, the discovery of two planets orbiting the evolved binary star system HW Virginis was announced, based on systematic variations in the timing of eclipses between the two stars. The planets invoked in that work were significantly…

Earth and Planetary Astrophysics · Physics 2015-06-11 J. Horner , T. C. Hinse , R. A. Wittenmyer , J. P. Marshall , C. G. Tinney

Several attempts have been made in the past to assess the expected number of exoplanetary transits that the Gaia space mission will detect. In this Letter we use the updated design of Gaia and its expected performance, and apply recent…

Earth and Planetary Astrophysics · Physics 2015-06-05 Yifat Dzigan , Shay Zucker

A commissioning survey of the Lookout Observatory has observed fourteen faint (V ~ 13 to 17) variables in the region of the exoplanet Kepler-8b. Three of these are variable star candidates discovered by the Asteroid Terrestrial-Impact Last…

Solar and Stellar Astrophysics · Physics 2020-12-22 Neil Thomas , Margaret Paczkowski

We present preliminary results of the first and on-going radial velocity survey for circumbinary planets. With a novel radial velocity technique employing an iodine absorption cell we achieve an unprecedented RV precision of up to 2 m/s for…

Earth and Planetary Astrophysics · Physics 2015-05-14 Maciej Konacki , Matthew W. Muterspaugh , Shrinivas R. Kulkarni , Krzysztof G. Hełminiak

Exoplanet detection in the past decade by efforts including NASA's Kepler and TESS missions has discovered many worlds that differ substantially from planets in our own Solar system, including more than 400 exoplanets orbiting binary or…

Earth and Planetary Astrophysics · Physics 2021-06-30 Zhihui Kong , Jonathan H. Jiang , Zong-Hong Zhu , Kristen A. Fahy , Remo Burn

As a part of our ongoing Volume-limited A-Star (VAST) adaptive optics survey, we have obtained observations of 26 binary systems with projected separations <100 AU, 13 of which have sufficient historical measurements to allow for refinement…

We report the results of our search of planet candidates in Open Clusters and Young Stellar Associations based on the TESS Objects of Interest Catalog. We find one confirmed planet, one promising candidate, one brown dwarf, and three…

Earth and Planetary Astrophysics · Physics 2022-06-22 Qinghui Sun , Sharon Xuesong Wang , Tianjun Gan , Andrew W. Mann

The frequency of planets in binaries is an important issue in the field of extrasolar planet studies because of its relevance in the estimation of the global planet population of our galaxy and the clues it can give to our understanding of…

Earth and Planetary Astrophysics · Physics 2020-02-28 Mariangela Bonavita , Silvano Desidera

In close eclipsing binaries, measurements of the variations in binary's eclipse timing may be used to infer information about the existence of circumbinary objects. To determine the possibility of the detection of such variations with CoRoT…

Earth and Planetary Astrophysics · Physics 2015-05-27 R. Schwarz , N. Haghighipour , S. Eggl , E. Pilat-Lohinger , B. Funk

We present the multiple stellar systems observed within the SpHere INfrared survey for Exoplanet (SHINE). SHINE searched for substellar companions to young stars using high contrast imaging. Although stars with known stellar companions…

As the number of detected extrasolar planets increases, exoplanet databases become a valuable resource, confirming some details about planetary formation, but also challenging our theories with new unexpected properties.

Earth and Planetary Astrophysics · Physics 2016-04-27 Fernando J. Ballesteros , Bartolo Luque

Since the discovery of a planet transiting its host star in the year 2000, thousands of additional exoplanets and exoplanet candidates have been detected, mostly by NASA's Kepler space telescope. Some of them are almost as small as the…

Earth and Planetary Astrophysics · Physics 2019-02-06 René Heller

The Transiting Exoplanet Survey Satellite (TESS) mission is providing the scientific community with millions of light curves of stars spread across the whole sky. Since 2018 the telescope has detected thousands of planet candidates that…

We present the results of a radial velocity (RV) survey of 46 subdwarf B (sdB) and 23 helium-rich subdwarf O (He-sdO) stars. We detected 18 (39%) new sdB binary systems, but only one (4%) He-sdO binary. Orbital parameters of nine sdB and…

Astrophysics · Physics 2009-11-10 R. Napiwotzki , C. A. Karl , T. Lisker , U. Heber , N. Christlieb , D. Reimers , G. Nelemans , D. Homeier

Roughly half of Solar-type planet hosts have stellar companions, so understanding how these binary companions affect the formation and evolution of planets is an important component to understanding planetary systems overall. Measuring the…

One core goal of the Kepler mission was to determine the frequency of Earth-like planets that orbit Sun-like stars. Accurately estimating this planet occurrence rate requires both a well-vetted list of planets and a clear understanding of…

We have recently hit the milestone of 5,000 exoplanets discovered. In stark contrast with the Solar System, most of the exoplanets we know to date orbit extremely close to their host stars, causing them to lose copious amounts of gas…

Earth and Planetary Astrophysics · Physics 2022-11-30 Leonardo A. Dos Santos

Recent surveys indicate that planets in binary systems are more abundant than previously thought, which is in agreement with theoretical work on disc dynamics and planet formation in binaries. In order to measure the abundance and physical…

Earth and Planetary Astrophysics · Physics 2020-11-11 J. Hagelberg , N. Engler , C. Fontanive , S. Daemgen , S. P. Quanz , J. Kühn , M. Reggiani , M. Meyer , R. Jayawardhana , V. Kostov

Direct imaging surveys for exoplanets commonly exclude binary stars from their target lists, leaving a large part of the overall planet demography unexplored. To address this gap in our understanding of planet formation and evolution, we…