T. Lüftinger
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View article: Eclipse mapping with <i>Ariel</i> : future prospects for a population-level mapping survey
Eclipse mapping with <i>Ariel</i> : future prospects for a population-level mapping survey Open
Eclipse mapping is a powerful tool for measuring 3D profiles of exoplanet atmospheres. To date, only JWST has been capable of widely applying this technique, but as a general observatory, it is too time-limited to conduct population-level …
View article: Eclipse Mapping with Ariel: Future Prospects for a Population-Level Mapping Survey
Eclipse Mapping with Ariel: Future Prospects for a Population-Level Mapping Survey Open
Eclipse mapping is a powerful tool for measuring 3D profiles of exoplanet atmospheres. To date, only JWST has been capable of widely applying this technique, but as a general observatory, it is too time-limited to conduct population-level …
View article: Spectropolarimetric characterisation of exoplanet host stars in preparation of the <i>Ariel</i> mission
Spectropolarimetric characterisation of exoplanet host stars in preparation of the <i>Ariel</i> mission Open
Context. The accurate characterisation of the stellar magnetism of planetary host stars has been gaining momentum, especially in the context of transmission spectroscopy investigations of exoplanets. Indeed, the magnetic field regulates th…
View article: Frequency of coronal mass ejection impacts with early terrestrial planets and exoplanets around active solar-like stars
Frequency of coronal mass ejection impacts with early terrestrial planets and exoplanets around active solar-like stars Open
Energetic flares and associated coronal mass ejections (CMEs) from young magnetically active solar-like stars can play a critical role in setting conditions for atmospheric escape as well as penetration of accelerated particles into their …
View article: Time evolution of magnetic activity cycles in young suns: The curious case of <i>κ</i> Ceti
Time evolution of magnetic activity cycles in young suns: The curious case of <i>κ</i> Ceti Open
Context. A detailed investigation of the magnetic properties of young Sun-like stars can provide valuable information on our Sun’s magnetic past and its impact on the early Earth. Aims. We determine the properties of the moderately rotatin…
View article: Probing the atmosphere of WASP-69 b with low- and high-resolution transmission spectroscopy
Probing the atmosphere of WASP-69 b with low- and high-resolution transmission spectroscopy Open
Consideration of both low- and high-resolution transmission spectroscopy is key for obtaining a comprehensive picture of exoplanet atmospheres. In studies of transmission spectra, the continuum information is well established with low-reso…
View article: Probing the atmosphere of WASP-69 b with low- and high-resolution transmission spectroscopy
Probing the atmosphere of WASP-69 b with low- and high-resolution transmission spectroscopy Open
Consideration of both low- and high-resolution transmission spectroscopy is key for obtaining a comprehensive picture of exoplanet atmospheres. In studies of transmission spectra, the continuum information is well established with low-reso…
View article: One Year in the Life of Young Suns: Data-constrained Corona-wind Model of κ <sup>1</sup> Ceti
One Year in the Life of Young Suns: Data-constrained Corona-wind Model of κ <sup>1</sup> Ceti Open
The young magnetically active solar-like stars are efficient generators of ionizing radiation in the form of X-ray and extreme-UV (EUV) flux, stellar wind, and eruptive events. These outputs are the critical factors affecting atmospheric e…
View article: Community Access to CHEOPS
Community Access to CHEOPS Open
Launched on 18 December 2019, CHEOPS (CHaracterising ExOPlanet Satellite) is the first exoplanet mission dedicated to the search for transits of exoplanets by means of ultrahigh precision photometry of bright stars already known to host pl…
View article: Ariel: Enabling planetary science across light-years
Ariel: Enabling planetary science across light-years Open
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. During its 4-year mission, Ariel will study what exoplanets are …
View article: The CHEOPS mission
The CHEOPS mission Open
The CHaracterising ExOPlanet Satellite (CHEOPS) was selected on October 19, 2012, as the first small mission (S-mission) in the ESA Science Programme and successfully launched on December 18, 2019, as a secondary passenger on a Soyuz-Frega…
View article: The solar wind from a stellar perspective: how do low-resolution data impact the determination of wind properties?
The solar wind from a stellar perspective: how do low-resolution data impact the determination of wind properties? Open
Alfvén-wave-driven 3D magnetohydrodynamic (MHD) models, which are increasingly used to predict stellar wind properties, contain unconstrained parameters and rely on low-resolution stellar magnetograms. We explore the effects of the input A…
View article: Stellar activity and planetary atmosphere evolution in tight binary star systems
Stellar activity and planetary atmosphere evolution in tight binary star systems Open
Context. In tight binary star systems, tidal interactions can signicantly inuence the rotational and orbital evolution of both stars, and therefore their activity evolution. This can have strong eects on the atmospheric evolution of planet…
View article: Timescales of starspot variability in slow rotators
Timescales of starspot variability in slow rotators Open
There is an intriguing proximity between the turnover time τ MLT of the standard mixing length theory of the Sun and the timescale τ lam of solar activity patterns at the space scale of giant laminar convection assumed in deep layers of th…
View article: On the non-variability of HR 7653 (15 Vul) based on BRITE data
On the non-variability of HR 7653 (15 Vul) based on BRITE data Open
We present space-based BRITE photometric observations of the metallic line (CP1) star HR 7653 (15 Vul). This chemically peculiar star of the upper main sequence was suspected to show variability due to rotation and a magnetic field. Such a…