Inverse modeling of European CH4 emissions: sensitivity to the observational network [PDF]
, 2009 Inverse modeling is widely employed to provide “top-down” emission estimates using atmospheric measurements. Here, we analyze the dependence of derived CH4 emissions on the sampling frequency and density of the observational surface network, using the ...
Bergamaschi, P. +9 more
core +2 more sources
A Machine Learning–ready Data Set for Exoplanet Atmospheric Retrieval [PDF]
Atmospheric retrieval is a modeling technique used to determine a planet’s atmosphere’s temperature and composition from spectral data. The retrieved atmospheric composition can provide understanding into the surface fluxes of gaseous species necessary ...
Simone Zorzan +21 more
core +1 more source
The composition and dynamics of exoplanet atmospheres. [PDF]
The study of exoplanets has rapidly developed in the last twenty years, and the detailed characterization of planetary atmospheres has become a key area of research.\ud \ud For transiting planets around bright stars, atmospheric features can be detected with transmission spectroscopy.
openaire
Atmospheric Composition Retrieval from Transit Spectra of Terrestrial Exoplanets: A Feasibility Study using Earth Observations [PDF]
, 2017 For an assessment of the detectability of molecular concentrations from transit spectra of Earth-like exoplanets, occultation spectra observed by an operational Earth observation satellite mission have been modeled with a line-by-line infrared radiative transfer code (Schreier et al. 2014).
Städt, Steffen +2 more
openaire +3 more sources
Characterizing Exoplanetary Atmospheres: New Views on Exoplanet Composition and Chemistry
To appear in the proceedings of the Pontifical Academy of Science workshop on The James Webb Space Telescope: from first light to new worldviews, Vatican City, 27-29 February ...
openaire +2 more sources
Atmospheric characterization of K2-18b [PDF]
openThis thesis investigates the atmosphere of K2-18b, a sub-Neptune exoplanet located in the habitable zone of an M-dwarf star. The study aims to characterize the chemical composition and the temperature-pressure (T-P) profile of the atmosphere to ...
MASCOLO, YLENIA
core
Confirmation of Fe i on MASCARA-5 b’s Dayside Observed With EXPRES
The Astronomical JournalMASCARA-5 b/TOI-1431 b is an ultra-hot Jupiter ( P _orb = 2.650237 ± 0.000003 dayd, T _eq = 2370 ± 70 K, M _p = 3.12 ± 0.18 M _Jup , R _p = 1.49 ± 0.05 R _Jup ) orbiting a bright Am star ( V = 8.0 mag).
James T. Sikora +7 more
doaj +1 more source
KRONOS I: The 1–2.8 μm JWST Transmission Spectrum of the 23 Myr V1298 Tau c
The Astronomical JournalWhile recent JWST observations of mature super-Earths and sub-Neptunes have frequently revealed featureless transmission spectra, their inflated progenitors offer a unique window into understanding their primordial compositions.
Matthew M. Murphy +18 more
doaj +1 more source
Global Chemical Transport on Hot Jupiters: Insights from the 2D VULCAN Photochemical Model
The Astrophysical JournalThe atmospheric dynamics of tidally locked hot Jupiters is characterized by strong equatorial winds. Understanding the interaction between global circulation and chemistry is crucial in atmospheric studies and interpreting observations.
Shang-Min Tsai +9 more
doaj +1 more source
A Photochemical Phosphorus-Hydrogen-Oxygen Network for Hydrogen-dominated Exoplanet Atmospheres
The Astrophysical JournalDue to the detection of phosphine (PH _3 ) in the solar system gas giants Jupiter and Saturn, PH _3 has long been suggested to be detectable in exosolar substellar atmospheres too.
Elspeth K. H. Lee +5 more
doaj +1 more source