Results 71 to 80 of about 2,057,964 (253)

Comparing nonredundant masking and filled-aperture kernel phase for exoplanet detection and characterization [PDF]

Journal of Astronomical Telescopes Instruments and Systems, 2019
. The limitations of adaptive optics and coronagraph performance make exoplanet detection close to λ  /  D extremely difficult with conventional imaging methods.
S. Sallum, A. Skemer
semanticscholar   +1 more source

Impacts of Carbon Dioxide Deposition on Martian Near‐Surface Wave Activity

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract A prominent feature of Mars' winter atmosphere is near‐surface baroclinic wave activity. These waves exert strong control on dust storm variability and contribute to transport of heat, momentum, and dust. Using a suite of Mars general circulation model simulations, we investigate an underexplored connection between near‐surface wave activity ...
Hung Kwan Fok, Anthony Toigo, Darryn Waugh   +2 more
wiley   +1 more source

The NASA Exoplanet Archive and Exoplanet Follow-up Observing Program: Data, Tools, and Usage

The Planetary Science Journal
The NASA Exoplanet Archive (NEA) and the Exoplanet Follow-up Observing Program service are two widely used resources for the exoplanet community. The NEA provides a complete and accurate accounting of exoplanetary systems published by NASA missions and ...
Jessie L. Christiansen, Douglas L. McElroy, Marcy Harbut, David R. Ciardi, Megan Crane, John Good, Kevin K. Hardegree-Ullman, Aurora Y. Kesseli, Michael B. Lund, Meca Lynn, Ananda Muthiar, Ricky Nilsson, Toba Oluyide, Michael Papin, Amalia Rivera, Melanie Swain, Nicholas D. Susemiehl, Raymond Tam, Julian van Eyken, Charles Beichman   +19 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

Noise Sources in Photometry and Radial Velocities

, 2017
The quest for Earth-like, extrasolar planets (exoplanets), especially those located inside the habitable zone of their host stars, requires techniques sensitive enough to detect the faint signals produced by those planets.
A. Reiners, A.P. Hatzes, A.P. Hatzes, A.P. Hatzes, B. Béky, D. Queloz, D. Queloz, D.M. Kipping, E. Herrero, F. Pont, G. Basri, G. Boué, I. Boisse, I. Boisse, I. Boisse, J.A. Carter, J.M. Jenkins, J.P. Faria, K.G. Strassmeier, M. Bazot, M. Mayor, M. Oshagh, M. Oshagh, N. Meunier, N.C. Santos, N.C. Santos, N.C. Santos, O.C. Wilson, P. Figueira, R.D. Haywood, R.L. Gilliland, R.W. Noyes, S. Aigrain, S. Czesla, S.C.C. Barros, S.H. Saar, T. Barclay, W.J. Borucki, X. Bonfils, X. Dumusque, X. Dumusque, X. Dumusque, X. Dumusque   +42 more
core   +1 more source

Detection of Exoplanets Using the Transit Method

The George Washington University Undergraduate Review, 2018
7 pages, 6 figures Affiliation ...
openaire   +3 more sources

Deciphering the “Missing Xenon Paradox” in Celestial Bodies: A Multifaceted Perspective Toward Demystifying This Enigma

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Xenon (Xe) is a heavy noble gas with intriguing chemical properties, such as having several stable isotopes and the ability to form compounds under extreme conditions. Despite the predictions based on cosmochemical models that suggest xenon should be relatively abundant in planetary reservoirs, empirical data indicate a significant depletion ...
Avinash Kumar Both, Avradip Ghosh, Chin Li Cheung   +2 more
wiley   +1 more source

A Planetary Illusion’s Funeral: Nondetection of a Gaia DR3 Exoplanet Candidate, and the Role of Intermediate-precision Radial Velocities in Gaia Exoplanet Follow-up

The Astronomical Journal
The detection of exoplanets using astrometry has long been an area of interest, but is fraught with challenges. The Gaia mission is fundamentally reshaping this field thanks to its unprecedentedly precise all-sky astrometric observations.
Alexander Venner, Chelsea X. Huang, David W. Latham, Samuel N. Quinn, Allyson Bieryla, Andrew Vanderburg, Robert A. Wittenmyer   +6 more
doaj   +1 more source

Classifying Exoplanets with Gaussian Mixture Model

, 2018
Recently, Odrzywolek and Rafelski (arXiv:1612.03556) have found three distinct categories of exoplanets, when they are classified based on density. We first carry out a similar classification of exoplanets according to their density using the Gaussian ...
Desai, Shantanu, Kulkarni, Soham
core   +1 more source

An Approach for Exoplanet Detection using Machine Learning By IJISRT

International Journal of Innovative Science and Research Technology
Traditionally, astronomer and astrophysicist teams were the only ones capable of identifying planets. They used techniques and equipment that are only available to persons with years of formal education and training.
Roshan Daniel, P. J. Beryl Princess, Vinayak S Deshpande, M. Tavares   +3 more
semanticscholar   +1 more source