activity
20102024
most citedUnveiling the internal structure and formation history of the three planets transiting HIP 29442 (TOI-469) with CHEOPS

26 citations · 41 across the 8 of their papers we have counts for

collaborators

10 papers

astro-ph.EP2024★ 10 cited

A close outer companion to the ultra-hot Jupiter TOI-2109 b?

J. -V. Harre, A. M. S. Smith, S. C. C. Barros +86

Hot Jupiters with close-by planetary companions are rare, with only a handful of them having been discovered so far. This could be due to their suggested dynamical histories, leadi…

astro-ph.EP2024

Architecture of TOI-561 planetary system

G. Piotto, T. Zingales, L. Borsato +89

We present new observations from CHEOPS and TESS to clarify the architecture of the planetary system hosted by the old Galactic thick disk star TOI-561. Our global analysis, which…

astro-ph.EP2024

Prominent mid-infrared excess of the dwarf planet (136472) Makemake discovered by JWST/MIRI indicates ongoing activity

Csaba Kiss, Thomas G. Müller, Anikó Farkas-Takács +18

We report on the discovery of a very prominent mid-infrared (18-25 μm) excess associated with the trans-Neptunian dwarf planet (136472) Makemake. The excess, detected by the MIRI i…

astro-ph.EP2024★ 3 cited

The CHEOPS view on the climate of WASP-3 b

G. Scandariato, L. Carone, P. E. Cubillos +83

Hot Jupiters are giant planets subject to intense stellar radiation. The physical and chemical properties of their atmosphere makes them the most amenable targets for the atmospher…

astro-ph.EP2024★ 26 cited

Unveiling the internal structure and formation history of the three planets transiting HIP 29442 (TOI-469) with CHEOPS

J. A. Egger, H. P. Osborn, D. Kubyshkina +91

Multiplanetary systems spanning the radius valley are ideal testing grounds for exploring the proposed explanations for the observed bimodality in the radius distribution of close-…

astro-ph.EP2024

Exocomet models in transit: light curve morphology in the optical -- near infrared wavelength range

Szilárd Kálmán, Gyula M. Szabó, Csaba Kiss

Following the widespread practice of exoplanetary transit simulations, various presumed components of an extrasolar system can be examined in numerically simulated transits, includ…

astro-ph.EP2024

Characterisation of the TOI-421 planetary system using CHEOPS, TESS, and archival radial velocity data

A. F. Krenn, D. Kubyshkina, L. Fossati +88

The TOI-421 planetary system contains two sub-Neptune-type planets and is a prime target to study the formation and evolution of planets and their atmospheres. The inner planet is…

astro-ph.EP2024

Discovery of two warm mini-Neptunes with contrasting densities orbiting the young K3V star TOI-815

Angelica Psaridi, Hugh Osborn, François Bouchy +130

We present the discovery and characterization of two warm mini-Neptunes transiting the K3V star TOI-815 in a K-M binary system. Analysis of the spectra and rotation period reveal i…

astro-ph.SR2023

The EBLM Project XI. Mass, radius and effective temperature measurements for 23 M-dwarf companions to solar-type stars observed with CHEOPS

M. I. Swayne, P. F. L. Maxted, A. H. M. J. Triaud +104

Observations of low-mass stars have frequently shown a disagreement between observed stellar radii and radii predicted by theoretical stellar structure models. This ``radius inflat…

astro-ph.SR2010★ 2 cited

Practical suggestions on detecting exomoons in exoplanet transit light curves

Gy. M. Szabo, A. E. Simon, L. L. Kiss +1

The number of known transiting exoplanets is rapidly increasing, which has recently inspired significant interest as to whether they can host a detectable moon. Although there has…