Results 11 to 20 of about 4,247,920 (343)

The JWST Early-release Science Program for Direct Observations of Exoplanetary Systems II: A 1 to 20 μm Spectrum of the Planetary-mass Companion VHS 1256–1257 b [PDF]

open access: yesAstrophysical Journal Letters, 2022
We present the highest fidelity spectrum to date of a planetary-mass object. VHS 1256 b is a
B. Miles   +110 more
semanticscholar   +1 more source

Technosignatures as a Priority in Planetary Science

open access: yesBulletin of the AAS, 2021
Are we alone? ​The study of technosignatures, physical manifestations of technology from extraterrestrial intelligences, is a rigorous astrobiological sub-discipline.
Sofia Z. Sheikh   +14 more
semanticscholar   +1 more source

Equatorial Waves and Superrotation in the Stratosphere of a Titan General Circulation Model

open access: yesThe Planetary Science Journal, 2023
We investigate the characteristics of equatorial waves associated with the maintenance of superrotation in the stratosphere of a Titan general circulation model.
Neil T. Lewis   +3 more
doaj   +1 more source

An eclipsing double-line spectroscopic binary at the stellar/substellar boundary in the Upper Scorpius OB association [PDF]

open access: yes, 2015
We aim at constraining evolutionary models at low mass and young ages by identifying interesting transiting system members of the nearest OB association to the Sun, Upper Scorpius, targeted by the Kepler mission.
N. Lodieu   +33 more
semanticscholar   +1 more source

Radiative transfer and inversion codes for characterizing planetary atmospheres: an overview

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The study of planetary atmospheres is crucial for understanding the origin, evolution, and processes that shape celestial bodies like planets, moons and comets.
M. Rengel   +2 more
doaj   +1 more source

Temperature effects on the 15–85 μm spectra of olivines and pyroxenes [PDF]

open access: yes, 2001
Far-infrared spectra of laboratory silicates are normally obtained at room temperature even though the grains responsible for astronomical silicate emission bands seen at wavelengths >20 μm are likely to be at temperatures below ∼150 K.
J. Bowey   +13 more
semanticscholar   +1 more source

A multi-lander New Frontiers mission concept study for Enceladus: SILENUS

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Enceladus, with its subsurface ocean, is amongst the top priority targets in the search for life beyond Earth. Following on discoveries from the Cassini mission that Enceladus possesses a global subsurface ocean containing salt and organic compounds ...
Erica Nathan   +11 more
doaj   +1 more source

NASA’S PLANETARY GEOLOGIC MAPPING PROGRAM: OVERVIEW [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
NASA’s Planetary Science Division supports the geologic mapping of planetary surfaces through a distinct organizational structure and a series of research and analysis (R&A) funding programs.
D. A. Williams
doaj   +1 more source

Novelty detection in rover-based planetary surface images using autoencoders

open access: yesFrontiers in Robotics and AI, 2022
In the domain of planetary science, novelty detection is gaining attention because of the operational opportunities it offers, including annotated data products and downlink prioritization.
Braden Stefanuk, Krzysztof Skonieczny
doaj   +1 more source

Domain-Agnostic Outlier Ranking Algorithms—A Configurable Pipeline for Facilitating Outlier Detection in Scientific Datasets

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Automatic detection of outliers is universally needed when working with scientific datasets, e.g., for cleaning datasets or flagging novel samples to guide instrument acquisition or scientific analysis.
Hannah R. Kerner   +8 more
doaj   +1 more source

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