Exoplanet biosignatures: understanding oxygen as a biosignature in the context of its environment

VS Meadows, CT Reinhard, GN Arney… - Astrobiology, 2018 - liebertpub.com
We describe how environmental context can help determine whether oxygen (O2) detected
in extrasolar planetary observations is more likely to have a biological source. Here we …

Observations of exoplanet atmospheres

IJM Crossfield - Publications of the Astronomical Society of the …, 2015 - iopscience.iop.org
Detailed characterization of an extrasolar planet's atmosphere provides the best hope for
distinguishing the makeup of its outer layers, and the only hope for understanding the …

Probabilistic forecasting of the masses and radii of other worlds

J Chen, D Kipping - The Astrophysical Journal, 2016 - iopscience.iop.org
Mass and radius are two of the most fundamental properties of an astronomical object.
Increasingly, new planet discoveries are being announced with a measurement of one of …

A chemical survey of exoplanets with ARIEL

G Tinetti, P Drossart, P Eccleston, P Hartogh… - Experimental …, 2018 - Springer
Thousands of exoplanets have now been discovered with a huge range of masses, sizes
and orbits: from rocky Earth-like planets to large gas giants grazing the surface of their host …

Characterizing transiting exoplanet atmospheres with JWST

TP Greene, MR Line, C Montero… - The Astrophysical …, 2016 - iopscience.iop.org
We explore how well spectra from the James Webb Space Telescope (JWST) will likely
constrain bulk atmospheric properties of transiting exoplanets. We start by modeling the …

The near-infrared spectrograph (nirspec) on the james webb space telescope-iv. capabilities and predicted performance for exoplanet characterization

SM Birkmann, P Ferruit, G Giardino, LD Nielsen… - Astronomy & …, 2022 - aanda.org
The Near-Inrared Spectrograph (NIRSpec) on the James Webb Space Telescope (JWST) is
a very versatile instrument, offering mul-tiobject and integral field spectroscopy with varying …

A consistent retrieval analysis of 10 hot Jupiters observed in transmission

JK Barstow, S Aigrain, PGJ Irwin… - The Astrophysical …, 2016 - iopscience.iop.org
We present a consistent optimal estimation retrieval analysis of 10 hot Jupiter exoplanets,
each with transmission spectral data spanning the visible to near-infrared wavelength range …

Detectability of biosignatures in anoxic atmospheres with the James Webb Space Telescope: A TRAPPIST-1e case study

J Krissansen-Totton, R Garland, P Irwin… - The Astronomical …, 2018 - iopscience.iop.org
Abstract The James Webb Space Telescope (JWST) may be capable of finding biogenic
gases in the atmospheres of habitable exoplanets around low-mass stars. Considerable …

JWST noise floor. I. Random error sources in JWST NIRCam time series

E Schlawin, J Leisenring, K Misselt… - The Astronomical …, 2020 - iopscience.iop.org
Abstract James Webb Space Telescope (JWST) transmission and emission spectra will
provide invaluable glimpses of transiting exoplanet atmospheres, including possible …

Observing transiting planets with JWST-prime targets and their synthetic spectral observations

P Mollière, R van Boekel, J Bouwman… - Astronomy & …, 2017 - aanda.org
Context. The James Webb Space Telescope will enable astronomers to obtain exoplanet
spectra of unprecedented precision. The MIRI instrument especially may shed light on the …