Speckle Observations of TESS Exoplanet Host Stars. II. Stellar Companions at 1–1000 au and Implications for Small Planet Detection [PDF]
Astronomical Journal, 2021 We present high-angular-resolution imaging observations of 517 host stars of TESS exoplanet candidates using the ‘Alopeke and Zorro speckle cameras at Gemini North and South.
K. Lester +9 more
semanticscholar +1 more source
SPIN–ORBIT ALIGNMENT OF EXOPLANET SYSTEMS: ENSEMBLE ANALYSIS USING ASTEROSEISMOLOGY [PDF]
, 2016 The angle ψ between a planet’s orbital axis and the spin axis of its parent star is an important diagnostic of planet formation, migration, and tidal evolution.
T. Campante +42 more
semanticscholar +1 more source
A nearby transiting rocky exoplanet that is suitable for atmospheric investigation [PDF]
Science, 2021 A transiting rocky planet 8 parsecs away Most exoplanets have been detected using either the radial velocity (RV) method or the transit method, which provide only limited information on the planet's physical properties.
T. Trifonov +68 more
semanticscholar +1 more source
The Astronomical Journal, 2023 Large-scale exoplanet surveys like the Transiting Exoplanet Survey Satellite (TESS) mission are powerful tools for discovering large numbers of exoplanet candidates.
Christopher R. Mann +50 more
doaj +1 more source
ASTEROSEISMIC DETERMINATION OF OBLIQUITIES OF THE EXOPLANET SYSTEMS KEPLER-50 AND KEPLER-65 [PDF]
, 2013 Results on the obliquity of exoplanet host stars—the angle between the stellar spin axis and the planetary orbital axis—provide important diagnostic information for theories describing planetary formation.
W. Chaplin +30 more
semanticscholar +1 more source
Search for (sub)stellar Companions of Exoplanet Hosts by Exploring the Second ESA-Gaia Data Release
Frontiers in Astronomy and Space Sciences, 2021 We present the latest results of an ongoing multiplicity survey of exoplanet hosts, which was initiated at the Astrophysical Institute and University Observatory Jena, using data from the second data release of the ESA-Gaia mission.
K.-U. Michel, M. Mugrauer
doaj +1 more source
Speckle Observations of TESS Exoplanet Host Stars: Understanding the Binary Exoplanet Host Star Orbital Period Distribution [PDF]
Astronomical Journal, 2021 We present high-resolution speckle interferometric imaging observations of TESS exoplanet host stars using the NN-EXPLORE Exoplanet and Stellar Speckle Imager instrument at the 3.5 m WIYN telescope.
S. Howell +7 more
semanticscholar +1 more source
The Astronomical Journal, 2023 The K-type star TOI-2525 has an estimated mass of M = ${0.849}_{-0.033}^{+0.024}$ M _⊙ and radius of R = ${0.785}_{-0.007}^{+0.007}$ R _⊙ observed by the TESS mission in 22 sectors (within sectors 1 and 39).
Trifon Trifonov +46 more
doaj +1 more source
Predictions of the Nancy Grace Roman Space Telescope Galactic Exoplanet Survey. II. Free-floating Planet Detection Rates [PDF]
Astronomical Journal, 2020 The Nancy Grace Roman Space Telescope (Roman) will perform a Galactic Exoplanet Survey (RGES) to discover bound exoplanets with semimajor axes greater than 1 au using gravitational microlensing. Roman will even be sensitive to planetary-mass objects that
Samson A. Johnson +7 more
semanticscholar +1 more source
The observation of exoplanet transit events in China
EPJ Web of Conferences, 2011 We have carried out a research project on the exoplanet transit events at Yunnan Observatory. By using CCD cameras attached to 1m telescope of Yunnan Observatory and 85cm telescope of Xinglong station, NAOC, a group of exoplanet systems with transit ...
Fang X.-S. +3 more
doaj +1 more source