169 citations · 258 across the 8 of their papers we have counts for
9 papers
Metal Oxide Clusters in Gas Giant Exoplanet Atmospheres
Deepak Bisht, Christiane Helling, David Gobrecht +6
This study investigates the thermal stability and absorption of metal oxide clusters in exoplanetary atmospheres. Utilizing our thermochemical data, we analyze eight distinct clust…
Vanadium oxide clusters in substellar atmospheres: A quantum chemical study
Helena Lecoq-Molinos, David Gobrecht, J. P. Sindel +2
We aim to understand the formation of cloud condensation nuclei in oxygen-rich substellar atmospheres by calculating fundamental properties of the energetically most favorable vana…
Infrared spectra of TiO2 clusters for hot Jupiter atmospheres
J. P. Sindel, Ch. Helling, D. Gobrecht +2
Context. Clouds seem unavoidable in cool and dense environments, and hence, are necessary to explain observations of exoplanet atmospheres, most recently of WASP 96b with JWST. Und…
Revisiting fundamental properties of TiO nanoclusters as condensation seeds in astrophysical environments
J. P. Sindel, D. Gobrecht, Ch. Helling +1
The formation of inorganic cloud particles takes place in several atmospheric environments including those of warm, hot, rocky and gaseous exoplanets, brown dwarfs, and AGB stars.…
Dust in brown dwarfs and extra-solar planets. VIII. TiO seed formation: 3D Monte Carlo versus kinetic approach
C. Köhn, Ch. Helling, M. Bødker Enghoff +4
We aim to understand the onset of cloud formation {and study the formation of} TiO-CCNs. The formation of (TiO) clusters as precursors to extrasolar cloud formati…
The Ionization Energies of Dust-Forming Metal Oxide Clusters
David Gobrecht, Jan Philip Sindel, Helena Lecoq-Molinos +1
Stellar dust grains are predominantly composed of mineralic, anorganic material forming in the circumstellar envelopes of oxygen-rich AGB stars. However, the initial stage of the d…
Atomium: The astounding complexity of the near circumstellar environment of the M-type AGB star R Hydrae. I. Morpho-kinematical interpretation of CO and SiO emission
Ward Homan, Bannawit Pimpanuwat, Fabrice Herpin +36
Evolved low- to intermediate-mass stars are known to shed their gaseous envelope into a large, dusty, molecule-rich circumstellar nebula which typically develops a high degree of s…
Atomium: A high-resolution view on the highly asymmetric wind of the AGB star Pi1 Gruis. I. First detection of a new companion and its effect on the inner wind
Ward Homan, Miguel Montarges, Bannawit Pimpanuwat +35
The nebular circumstellar environments of cool evolved stars are known to harbour a rich morphological complexity of gaseous structures on different length scales. A large part of…
Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS) IV. A spectral inventory of atoms and molecules in the high-resolution transmission spectrum of WASP-121 b
H. J. Hoeijmakers, J. V. Seidel, L. Pino +22
Aims: We survey the transmission spectrum of WASP-121 b for line-absorption by metals and molecules at high spectral resolution, and elaborate on existing interpretations of the op…