Effect of Laboratory Reagents for Cleaning Modern Contamination on the δ15N Integrity of Nitrogen‐Poor Samples [PDF]
Rapid Communications in Mass Spectrometry, Volume 40, Issue 19, 15 October 2026.ABSTRACT Rationale Nitrogen isotope values have been widely used for tracing ancient biogeochemical processes, but contaminant‐sensitive materials, such as Precambrian sedimentary rocks, meteorites, or returned extraterrestrial samples, often have low nitrogen levels and are thus vulnerable to modern organic contamination.
Kunmanee Bubphamanee +2 more
wiley +2 more sources
A Catalog of Exoplanet Atmospheric Retrieval Codes [PDF]
, 2023 Exoplanet atmospheric retrieval is a computational technique widely used to infer properties of planetary atmospheres from remote spectroscopic observations.
Ryan J. MacDonald +3 more
core +2 more sources
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
core +5 more sources
A Geologic Si‐O‐C Pathway to Incorporate Carbon in Silicates
Geophysical Monograph Series, Page 47-54., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Alexandra Navrotsky +2 more
wiley +2 more sources
A better characterization of the chemical composition of exoplanets atmospheres with ARIEL [PDF]
Experimental Astronomy, 2018 Since the discovery of the first extrasolar planet more than twenty years ago, we have discovered nearly four thousand planets orbiting stars other than the Sun. Current observational instruments (on board the Hubble Space Telescope, Spitzer, and on ground-based facilities) have allowed the scientific community to obtain important information on the ...
Venot, Olivia +5 more
openaire +5 more sources
exoplanet-dev/exoplanet: exoplanet v0.4.5
, 2021 0.5.0 (2021-05-04) Adds high-level, pure-Theano/Aesara implementation of RegularGridInterpolator to replace compiled version #167 Moves compiled Ops to exoplanet-core making exoplanet a pure-Python package #171 Moves ReboundOp and ReboundOrbit to ...
emilygilbert +10 more
core +1 more source
Using dimers to measure biosignatures and atmospheric pressure for terrestrial exoplanets [PDF]
, 2014 We present a new method to probe atmospheric pressure on Earth-like planets using (O-O) dimers in the near-infrared. We also show that dimer features could be the most readily detectable biosignatures for Earth-like atmospheres and may even be detectable
Misra, A. +4 more
core +1 more source
A survey of exoplanet phase curves with Ariel [PDF]
, 2021 The ESA-Ariel mission will include a tier dedicated to exoplanet phase curves corresponding to ∼10% of the science time. We present here the current observing strategy for studying exoplanet phase curves with Ariel.
Mendonça, JM +50 more
core +4 more sources
Spectral Retrieval with JWST Photometric data: a Case Study for HIP 65426 b
The Astronomical Journal, 2023 Half of the JWST high-contrast imaging objects will only have photometric data as of Cycle 2. However, to better understand their atmospheric chemistry that informs formation origin, spectroscopic data are preferred.
Ji Wang
doaj +1 more source
exoplanet: Gradient-based probabilistic inference for exoplanet data & other astronomical time series [PDF]
, 2021 What's Changed Adding test and fixing deprecated unit parameters by @dfm in https://github.com/exoplanet-dev/exoplanet/pull/211 Removing old ValueError in Keplerian orbit that should never be hit by @dfm in https://github.com/exoplanet-dev/exoplanet ...
Savel, Arjun +41 more
core +1 more source