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 …

The PLATO 2.0 mission

H Rauer, C Catala, C Aerts, T Appourchaux… - Experimental …, 2014 - Springer
PLATO 2.0 has recently been selected for ESA's M3 launch opportunity (2022/24). Providing
accurate key planet parameters (radius, mass, density and age) in statistical numbers, it …

Possible climates on terrestrial exoplanets

F Forget, J Leconte - … Transactions of the Royal Society A …, 2014 - royalsocietypublishing.org
What kind of environment may exist on terrestrial planets around other stars? In spite of the
lack of direct observations, it may not be premature to speculate on exoplanetary climates …

The hazy and metal-rich atmosphere of GJ 1214 b constrained by near-and mid-infrared transmission spectroscopy

P Gao, AAA Piette, ME Steinrueck… - The Astrophysical …, 2023 - iopscience.iop.org
The near-infrared transmission spectrum of the warm sub-Neptune exoplanet GJ 1214 b has
been observed to be flat and featureless, implying a high metallicity atmosphere with …

The minimum-mass extrasolar nebula: in situ formation of close-in super-Earths

E Chiang, G Laughlin - Monthly Notices of the Royal …, 2013 - academic.oup.com
Close-in super-Earths, with radii R≈ 2–5 R⊕ and orbital periods P< 100 d, orbit more than
half, and perhaps nearly all, Sun-like stars in the Universe. We use this omnipresent …

Thermal emission and reflected light spectra of super Earths with flat transmission spectra

CV Morley, JJ Fortney, MS Marley… - The Astrophysical …, 2015 - iopscience.iop.org
Planets larger than Earth and smaller than Neptune are some of the most numerous in the
galaxy, but observational efforts to understand this population have proved challenging …

How to distinguish between cloudy mini-Neptunes and water/volatile-dominated super-Earths

B Benneke, S Seager - The Astrophysical Journal, 2013 - iopscience.iop.org
One of the most profound questions about the newly discovered class of low-density super-
Earths is whether these exoplanets are predominately H 2-dominated mini-Neptunes or …

A framework for characterizing the atmospheres of low-mass low-density transiting planets

JJ Fortney, C Mordasini, N Nettelmann… - The Astrophysical …, 2013 - iopscience.iop.org
We perform modeling investigations to aid in understanding the atmospheres and
composition of small planets of∼ 2–4 Earth radii, which are now known to be common in our …

Access i. an optical transmission spectrum of gj 1214b reveals a heterogeneous stellar photosphere

B Rackham, N Espinoza, D Apai… - The Astrophysical …, 2017 - iopscience.iop.org
ABSTRACT GJ 1214b is the most studied sub-Neptune exoplanet to date. Recent
measurements have shown its near-infrared transmission spectrum to be flat, pointing to a …

Quantitatively assessing the role of clouds in the transmission spectrum of GJ 1214b

CV Morley, JJ Fortney, EMR Kempton… - The Astrophysical …, 2013 - iopscience.iop.org
Recent observations of the super-Earth GJ 1214b show that it has a relatively featureless
transmission spectrum. One suggestion is that these observations indicate that the planet's …