75 citations · 455 across the 18 of their papers we have counts for
18 papers
On the dual nature of atmospheric escape
Darius Modirrousta-Galian, Jun Korenaga
Planetary atmospheres cannot remain hydrostatic at all altitudes because they approach finite density at infinite radius, implying infinite mass. Classical treatments address this…
Revising core powered mass loss: A critical assessment of the "energy limited" argument
Darius Modirrousta-Galian, Jun Korenaga
The extreme conditions in the early stages of planetary evolution are thought to shape its subsequent development. High internal temperatures from giant impacts can provide suffici…
On the Efficacy of Ocean Formation with a Primordial Hydrogen Atmosphere
Darius Modirrousta-Galian, Jun Korenaga
It has been suggested that Earth's present water budget formed from oxidation reactions between its initial hydrogen-rich primordial atmosphere and its magma ocean. Here we examine…
Windows Into Other Worlds: Pitfalls in the physical interpretation of exoplanet atmospheric spectroscopy
Darius Modirrousta-Galian, Riccardo Spinelli, Antonio Jimenez-Escobar
Atmospheric spectroscopy provides a window into the properties of exoplanets. However, the physical interpretation of retrieved data and its implications for the internal propertie…
The Diffusion Limit of Photoevaporation in Primordial Planetary Atmospheres
Darius Modirrousta-Galian, Jun Korenaga
Photoevaporation is thought to play an important role in the early planetary evolution. In this study, we investigate the diffusion limit of X-ray and ultraviolet induced photoevap…
The three regimes of atmospheric evaporation for super-Earths and sub-Neptunes
Darius Modirrousta-Galian, Jun Korenaga
A significant fraction of super-Earths and sub-Neptunes are thought to experience an extreme loss of volatiles because of atmospheric evaporation in the early stages of their life.…
RAPOC : the Rosseland and Planck opacity converter. A user-friendly and fast opacity program for Python
Lorenzo V. Mugnai, Darius Modirrousta-Galian
RAPOC (Rosseland and Planck Opacity Converter) is a Python 3 code that calculates Rosseland and Planck mean opacities (RPMs) from wavelength-dependent opacities for a given tempera…
ARES V: No Evidence For Molecular Absorption in the HST WFC3 Spectrum of GJ 1132 b
Lorenzo V. Mugnai, Darius Modirrousta-Galian, Billy Edwards +25
We present a study on the spatially scanned spectroscopic observations of the transit of GJ 1132 b, a warm (500 K) Super-Earth (1.13 R) that was obtained with the G1…
Ariel: Enabling planetary science across light-years
Giovanna Tinetti, Paul Eccleston, Carole Haswell +313
Ariel, the Atmospheric Remote-sensing Infrared Exoplanet Large-survey, was adopted as the fourth medium-class mission in ESA's Cosmic Vision programme to be launched in 2029. Durin…
Of Aliens and Exoplanets: Why the search for life, probably, requires the search for water
Darius Modirrousta-Galian, Giovanni Maddalena
It is not currently possible to create a living organism ab initio due to the overwhelming complexity of biological systems. In fact, the origin of life mechanism, this being how b…
Constraints on the mass and atmospheric composition and evolution of the low-density young planet DS Tuc A b
S. Benatti, M. Damasso, F. Borsa +9
We performed a radial velocity (RV) monitoring of the 40 Myr old star DS Tuc A with HARPS at the ESO-3.6m to determine the planetary mass of its 8.14-days planet, first revealed by…
ARES IV: Probing the atmospheres of the two warm small planets HD 106315 c and HD 3167 c with the HST/WFC3 camera
Gloria Guilluy, Amélie Gressier, Sam Wright +27
We present an atmospheric characterization study of two medium sized planets bracketing the radius of Neptune: HD 106315 c (R=4.98 0.23 R) and HD 3167 c…
Exploring Super-Earth Surfaces: Albedo of Near-Airless Magma Ocean Planets and Topography
Darius Modirrousta-Galian, Yuichi Ito, Giuseppina Micela
In this paper we propose an analytic function for the spherical albedo values of airless and near-airless magma ocean planets (AMOPs). We generated 2-D fractal surfaces with varyin…
ARES III: Unveiling the Two Faces of KELT-7 b with HST WFC3
William Pluriel, Niall Whiteford, Billy Edwards +24
We present the analysis of the hot-Jupiter KELT-7b using transmission and emission spectroscopy from the Hubble Space Telescope (HST), both taken with the Wide Field Camera 3 (WFC3…
ARES II: Characterising the Hot Jupiters WASP-127 b, WASP-79 b and WASP-62 b with HST
Nour Skaf, Michelle Fabienne Bieger, Billy Edwards +24
This paper presents the atmospheric characterisation of three large, gaseous planets: WASP-127b, WASP-79b and WASP-62b. We analysed spectroscopic data obtained with the G141 grism…
ARES I: WASP-76 b, A Tale of Two HST Spectra
Billy Edwards, Quentin Changeat, Robin Baeyens +25
We analyse the transmission and emission spectra of the ultra-hot Jupiter WASP-76b, observed with the G141 grism of the Hubble Space Telescope's Wide Field Camera 3 (WFC3). We redu…
The Bimodal Distribution in Exoplanet Radii: Considering Varying Core Compositions and Envelope's Sizes
Darius Modirrousta-Galian, Daniele Locci, Giuseppina Micela
Several models have been introduced in order to explain the radius distribution in exoplanet radii observed by Fulton et al. (2017) with one peak at the…
Hot Super-Earths with Hydrogen Atmospheres: A Model Explaining Their Paradoxical Existence
Darius Modirrousta-Galian, Daniele Locci, Giovanna Tinetti +1
In this paper we propose a new mechanism that could explain the survival of hydrogen atmospheres on some hot super-Earths. We argue that on close-orbiting tidally-locked super-Eart…