activity
20232025
most citedSO2, silicate clouds, but no CH4 detected in a warm Neptune

128 citations · 370 across the 19 of their papers we have counts for

collaborators

20 papers

astro-ph.SR2025★ 5 cited

MINDS. Cha Hα 1, a brown dwarf with a hydrocarbon-rich disk

María Morales-Calderón, Hyerin Jang, Aditya M. Arabhavi +23

Context. Recent JWST observations have shown that brown dwarfs (BD) are chemically rich, offering valuable insights into giant planet formation. Aims. As part of the MIRI mid-INfra…

astro-ph.EP2025★ 6 cited

JWST/MIRI observations of the young TWA 27 system: hydrocarbon disk chemistry, silicate clouds, evidence for a CPD

P. Patapis, M. Morales-Calderón, A. M. Arabhavi +39

The Mid-Infrared Instrument (MIRI) on the James Webb Space Telescope (JWST) enables the characterisation of young self-luminous gas giants at previously inaccessible wavelengths, r…

astro-ph.EP2025

MIRI-JWST mid-infrared direct imaging of the debris disk of HD106906

Daniel Rouan, Anthony Boccaletti, Clément Perrot +20

We report MIRI-JWST coronagraphic observations at 11.3 and 15.5 mic of the debris disk around the young star HD 106906. The observations were made to characterize the structure, te…

astro-ph.EP2025

HCN and C2H2 in the atmosphere of a T8.5+T9 brown dwarf binary

Elisabeth C. Matthews, Paul Mollière, Helena Kühnle +22

T-type brown dwarfs present an opportunity to explore atmospheres teeming with molecules such as H2O, CH4 and NH3, which exhibit a wealth of absorption features in the mid-infrared…

astro-ph.EP2025

First unambiguous detection of ammonia in the atmosphere of a planetary mass companion with JWST/MIRI coronagraphs

Mathilde Mâlin, Anthony Boccaletti, Clément Perrot +28

The newly accessible mid-infrared (MIR) window offered by the James Webb Space Telescope (JWST) for exoplanet imaging is expected to provide valuable information to characterize th…

astro-ph.GA2025★ 5 cited

The Rich JWST Spectrum of the Western Nucleus of Arp 220: Shocked Hot Core Chemistry Dominates the Inner Disk

Victorine Buiten, Paul van der Werf, Serena Viti +20

We present full 3-28 JWST MIRI/MRS and NIRSpec/IFU spectra of the western nucleus of Arp 220, the nearest ultraluminous infrared galaxy. This nucleus has long been su…

astro-ph.EP2024★ 53 cited

Combined analysis of the 12.8 and 15 JWST/MIRI eclipse observations of TRAPPIST-1 b

Elsa Ducrot, Pierre-Olivier Lagage, Michiel Min +36

The first JWST/MIRI photometric observations of TRAPPIST-1 b allowed for the detection of the thermal emission of the planet at 15 , suggesting that the planet could be a bare…

astro-ph.SR2024

MINDS. JWST-MIRI Observations of a Spatially Resolved Atomic Jet and Polychromatic Molecular Wind Toward SY Cha

Kamber R. Schwarz, Matthias Samland, Göran Olofsson +21

The removal of angular momentum from protostellar systems drives accretion onto the central star and may drive the dispersal of the protoplanetary disk. Winds and jets can contribu…

astro-ph.EP2024

Unveiling the HD 95086 system at mid-infrared wavelengths with JWST/MIRI

Mathilde Mâlin, Anthony Boccaletti, Clément Perrot +26

Mid-infrared imaging of exoplanets and disks is now possible with the coronagraphs of the MIRI on the JWST. This wavelength range unveils new features of young directly imaged syst…

astro-ph.SR2024

MINDS: Mid-infrared atomic and molecular hydrogen lines in the inner disk around a low-mass star

Riccardo Franceschi, Thomas Henning, Benoît Tabone +27

This work aims to measure the mass accretion rate, the accretion luminosity, and more generally the physical conditions of the warm emitting gas in the inner disk of the very low-m…

astro-ph.GA2024

PROJECT-J: JWST observations of HH46~IRS and its outflow. Overview and first results

B. Nisini, M. G. Navarro, T. Giannini +23

We present the first results of the JWST program PROJECT-J (PROtostellar JEts Cradle Tested with JWST ), designed to study the Class I source HH46 IRS and its outflow through NIRSp…

astro-ph.SR2024★ 31 cited

JWST study of the DG Tau B disk wind candidate: I -- Overview and Nested H/CO outflows

Valentin Delabrosse, Catherine Dougados, Sylvie Cabrit +5

The origin and impact of outflows on proto-planetary disks and planet formation are key open questions. DG Tau B, a Class I protostar with a structured disk and a striking rotating…

astro-ph.EP2024

MINDS. The DR Tau disk I: combining JWST-MIRI data with high-resolution CO spectra to characterise the hot gas

Milou Temmink, Ewine F. van Dishoeck, Sierra L. Grant +29

The MRS mode of the JWST-MIRI instrument has been shown to be a powerful tool to characterise the molecular gas emission of the inner region of planet-forming disks. Here, we analy…

astro-ph.EP2024

MINDS: The JWST MIRI Mid-INfrared Disk Survey

Thomas Henning, Inga Kamp, Matthias Samland +39

The study of protoplanetary disks has become increasingly important with the Kepler satellite finding that exoplanets are ubiquitous around stars in our galaxy and the discovery of…

astro-ph.EP2024★ 31 cited

MINDS: JWST/NIRCam imaging of the protoplanetary disk PDS 70

V. Christiaens, M. Samland, Th. Henning +28

Context. Two protoplanets have recently been discovered within the PDS 70 protoplanetary disk. JWST/NIRCam offers a unique opportunity to characterize them and their birth environm…

astro-ph.SR2024★ 37 cited

JWST Observations of Young protoStars (JOYS): Linked accretion and ejection in a Class I protobinary system

Łukasz Tychoniec, Martijn L. van Gelder, Ewine F. van Dishoeck +19

Accretion and ejection sets the outcome of the star and planet formation process. The mid-infrared wavelength range offers key tracers of those processes that were difficult to det…

astro-ph.EP2024

MINDS. JWST-MIRI Reveals a Dynamic Gas-Rich Inner Disk Inside the Cavity of SY Cha

Kamber R. Schwarz, Thomas Henning, Valentin Christiaens +24

SY Cha is a T Tauri star surrounded by a protoplanetary disk with a large cavity seen in the millimeter continuum but has the spectral energy distribution (SED) of a full disk. Her…

astro-ph.EP2023★ 43 cited

15NH3 in the atmosphere of a cool brown dwarf

David Barrado, Paul Mollière, Polychronis Patapis +40

Brown dwarfs serve as ideal laboratories for studying the atmospheres of giant exoplanets on wide orbits as the governing physical and chemical processes in them are nearly identic…

astro-ph.EP2023★ 128 cited

SO2, silicate clouds, but no CH4 detected in a warm Neptune

Achrene Dyrek, Michiel Min, Leen Decin +44

WASP-107b is a warm (~740 K) transiting planet with a Neptune-like mass of ~30.5 Earth masses and Jupiter-like radius of ~0.94 Jupiter radius, whose extended atmosphere is eroding.…

astro-ph.EP2023★ 31 cited

Imaging detection of the inner dust belt and the four exoplanets in the HR8799 system with JWST's MIRI coronagraph

Boccaletti A., Mâlin M., Baudoz P. +35

The multi planet system HR8799 is the first target observed with MIRI's coronagraphs as part of the MIRI-EC Guaranteed Time Observations exoplanets programme in Nov. 2022. We obtai…