Results 81 to 90 of about 14,028,364 (216)

Searching for Additional Planets in TESS Multiplanet Systems: Testing Empirical Models Based on Kepler Data

The Astronomical Journal
Multiplanet system architectures are frequently used to constrain possible formation and evolutionary pathways of observed exoplanets. Therefore, understanding the predictive and descriptive power of empirical exoplanetary system models is critical to ...
Emma V. Turtelboom, Jamie Dietrich, Courtney D. Dressing, Caleb K. D. Harada   +3 more
doaj   +1 more source

Company for the Ultra-high Density, Ultra-short Period Sub-Earth GJ 367 b: Discovery of Two Additional Low-mass Planets at 11.5 and 34 Days

The Astrophysical Journal Letters, 2023
GJ 367 is a bright ( V ≈ 10.2) M1 V star that has been recently found to host a transiting ultra-short period sub-Earth on a 7.7 hr orbit. With the aim of improving the planetary mass and radius and unveiling the inner architecture of the system, we ...
Elisa Goffo, Davide Gandolfi, Jo Ann Egger, Alexander J. Mustill, Simon H. Albrecht, Teruyuki Hirano, Oleg Kochukhov, Nicola Astudillo-Defru, Oscar Barragan, Luisa M. Serrano, Artie P. Hatzes, Yann Alibert, Eike Guenther, Fei Dai, Kristine W. F. Lam, Szilárd Csizmadia, Alexis M. S. Smith, Luca Fossati, Rafael Luque, Florian Rodler, Mark L. Winther, Jakob L. Rørsted, Javier Alarcon, Xavier Bonfils, William D. Cochran, Hans J. Deeg, Jon M. Jenkins, Judith Korth, John H. Livingston, Annabella Meech, Felipe Murgas, Jaume Orell-Miquel, Hannah L. M. Osborne, Enric Palle, Carina M. Persson, Seth Redfield, George R. Ricker, Sara Seager, Roland Vanderspek, Vincent Van Eylen, Joshua N. Winn   +40 more
doaj   +1 more source

Exoplanet detection methods (for solar-type stars): an overview

, 2022
An overview methods to detect and characterise exoplanets around solar-type stars, as well as some recent results.
openaire   +2 more sources

Interactions of Sublimated Frost With Volcanic Plumes: Modeling Io's SO2 Atmosphere Using the DSMC Method

Journal of Geophysical Research: Planets, Volume 131, Issue 7, July 2026.
Abstract Io's tenuous atmosphere consists primarily of sulfur dioxide (SO2 ${\text{SO}}_{2}$) with observed column densities of approximately 1016−1017 $1{0}^{16}-1{0}^{17}$ cm−2 ${\text{cm}}^{-2}$. However, it remains uncertain whether the sublimation of SO2 ${\text{SO}}_{2}$ surface frost or volcanic outgassing is the primary source of the SO2 ...
Leander Schlarmann, Audrey Vorburger, Tim Mosimann, Nicolas Thomas, Peter Wurz   +4 more
wiley   +1 more source

AN UNSUPERVISED PATCH-BASED APPROACH FOR EXOPLANET DETECTION BY DIRECT IMAGING

, 2018
International audienceThe search for exoplanet is a very active topic in astronomy. Exoplanet detection by direct imaging requires both dedicated instruments to mask out the host star and careful image processing methods.
Langlois, Maud, Thiébaut, Eric, Flasseur, Olivier, Denis, Loic   +3 more
core   +6 more sources

Exoplanet Detection by Transit Method

, 2023
The detection of exoplanets is essential for understanding the diversity of the universe, habitability opportunities, and the possibility of alien life outside our solar system. Extraterrestrial life has been the focus of extensive research for decades.
openaire   +1 more source

EXOPLANET DETECTION METHODS: AN OVERVIEW OF TECHNIQUES AND LIMITATIONS

Kosmìčna nauka ì tehnologìâ
This article provides an overview of the main methods used in the search for exoplanets, including the transit method, radial velocity, astrometry, and direct imaging. Through the analysis of various sources, the applicability, strengths, and inherent limitations of each technique are assessed. The transit method, responsible for approximately 75 % of
E.C. M. ORTIZ, S. VALENCIA
openaire   +1 more source

Out There No One Has a Right to Die

Bioethics, Volume 40, Issue 6, Page 565-572, July 2026.
ABSTRACT The eventual goal of space exploration is to colonize exoplanets and their moons outside our solar system. This is a dangerous and immoral endeavour. The extraterrestrial life forms encountered would be hostile, vulnerable or both, and the descendants of the original pioneers would be involuntarily exposed to hazardous conditions and ...
Matti Häyry
wiley   +1 more source

Exoplanet Detection via Differentiable Rendering [PDF]

Direct imaging of exoplanets is crucial for advancing our understanding of planetary systems beyond our solar system, but it faces significant challenges due to the high contrast between host stars and their planets.
Ferrer-Chávez, Rodrigo, Freeman, William T., Feng, Brandon Y., Wang, Jason J., Bouman, Katherine L., Levis, Aviad   +5 more
core   +2 more sources

Revisiting the Exo-Mercury Candidate GJ 367 b with ESPRESSO and a Self-consistent Tidal Distortion Model

The Astronomical Journal
We report revised mass and radius measurements for GJ 367 b, an ultra-short-period (7.7 hr) sub-Earth in a multiplanet system orbiting a nearby (∼9 pc) M dwarf host.
Rena A. Lee, Fei Dai, Ellen M. Price, Te Han, Davide Gandolfi, Mathias Zechmeister, Gumundur Stefánsson, Jiayin Dong, Simon H. Albrecht, Kristine W. F. Lam, Federica Chiti, Jennifer L. van Saders, Daniel Huber, Heather A. Knutson, Karen A. Collins, Michael Zhang, Leslie A. Rogers, Eleonora Armano, Casey L. Brinkman, Nicholas Saunders, Daniel Hey   +20 more
doaj   +1 more source