Results 21 to 30 of about 14,838,227 (209)

A Six Year, Low-resolution, Multibroadband Transit Photometry Study of HD 189733b

open access: yesThe Astronomical Journal, 2022
Transmission spectroscopy offers an invaluable opportunity to characterize the atmospheres of exoplanets. We present new ground-based optical transmission spectra of the hot Jupiter HD 189733b, derived from nine transits observed over a six year time ...
Cristilyn N. Gardner-Watkins   +15 more
doaj   +1 more source

The Future of Exoplanet Direct Detection [PDF]

open access: yes, 2019
Diffraction fundamentally limits our ability to image and characterize exoplanets. Interferometry offers some advantages in exoplanet detection and characterization and we explore in this white paper some of the potential scientific breakthroughs ...
Gordon, Kathryn   +65 more
core   +3 more sources

Three Warm Jupiters around Solar-analog Stars Detected with TESS

open access: yesThe Astronomical Journal, 2023
We report the discovery and characterization of three giant exoplanets orbiting solar-analog stars, detected by the TESS space mission and confirmed through ground-based photometry and radial velocity measurements taken at La Silla observatory with FEROS.
Jan Eberhardt   +34 more
doaj   +1 more source

The Comparison of Five Methods of Detecting Exoplanets

open access: yesHighlights in Science, Engineering and Technology, 2023
Detecting exoplanets has become a hot topic, where various detection scenarios have been proposed. Five of these methods have all found more than 50 exoplanets, which are the transit method, the radial velocity method, the microlensing method, the imaging method, and the timing method.
openaire   +1 more source

NEW COMPLETENESS METHODS FOR ESTIMATING EXOPLANET DISCOVERIES BY DIRECT DETECTION [PDF]

open access: yesThe Astrophysical Journal, 2010
27 pages, 4 figures, 6 tables, accepted for publication by ...
Brown, Robert A., Soummer, Remi
openaire   +2 more sources

Optimal method for exoplanet detection by spectral and angular differential imaging [PDF]

open access: yesSPIE Proceedings, 2010
ABSTRACT In the context of the SPHERE planet “nder project, we further develop and characterize a recently proposedmethod for the ecient direct detection of exoplanets f rom the ground using spectral and angular dierentialimaging. The method, called ANDROMEDA, combines images appropriately into pseudo-dataŽ, then uses allof them in a Maximum ...
Cornia, A.   +11 more
openaire   +3 more sources

Variability of Known Exoplanet Host Stars Observed by TESS

open access: yesThe Astronomical Journal, 2023
Both direct and indirect methods of exoplanet detection rely upon detailed knowledge of the potential host stars. Such stellar characterization allows for accurate extraction of planetary properties, as well as contributing to our overall understanding ...
Emilie R. Simpson   +5 more
doaj   +1 more source

Detection of Exoplanets based on the Transit Method

open access: yesHighlights in Science, Engineering and Technology, 2023
Exoplanets are planets orbiting a star other than the Sun. These exoplanets may exist in many different forms, such as a hot Jupiter and super earth. Detecting is the first step to further studying the properties of these exoplanets. In this paper, based on data of star Qatar-1 gathered from July 22nd 2022, a light flux curve is developed during the ...
openaire   +1 more source

A new method for finding nearby white dwarfs exoplanets and detecting biosignatures

open access: yesMonthly Notices of the Royal Astronomical Society, 2022
ABSTRACT We demonstrate that the James Webb Space Telescope (JWST) can detect infrared (IR) excess from the blended light spectral energy distribution of spatially unresolved terrestrial exoplanets orbiting nearby white dwarfs. We find that JWST is capable of detecting warm (habitable-zone; Teq = 287 K) Earths or super-Earths and hot ...
Mary Anne Limbach   +7 more
openaire   +2 more sources

Revised Properties and Dynamical History for the HD 17156 System

open access: yesThe Astronomical Journal, 2023
From the thousands of known exoplanets, those that transit bright host stars provide the greatest accessibility toward detailed system characterization.
Stephen R. Kane   +9 more
doaj   +1 more source

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