activity
20242026
most citedThe ESO SupJup Survey I: Chemical and isotopic characterisation of the late L-dwarf DENIS J0255-4700 with CRIRES

37 citations · 149 across the 14 of their papers we have counts for

collaborators

14 papers

astro-ph.EP2026

The ESO SupJup Survey XI. Atmospheric properties of six isolated M- and L-type dwarfs with CRIRES+

C. R. Malcolm, N. Grasser, I. A. G. Snellen +9

The distinct formation pathways of brown dwarfs and giant exoplanets may be encoded in their atmospheric composition. We present atmospheric retrievals for six isolated brown dwarf…

astro-ph.EP2026

Chemistry and Isotope Ratios of Substellar Atmospheres in the Pictoris Young Moving Group and Vicinity

Yurou Liu, Yapeng Zhang, Jerry W. Xuan +7

Measuring the chemical and isotopic compositions of gas giants and brown dwarfs provides insights into their formation pathways and birth environments. 2MASS J0249-0557 c is an L2-…

astro-ph.EP2026

The carbon isotope ratio of β Pic b with high-resolution spectroscopy

D. González Picos, I. A. G. Snellen, R. Landman +6

Isotopic ratios trace the formation and evolution of planets and link their atmospheres to the chemistry of their natal protoplanetary discs. We measure $^{12}\mathrm{C}/^{13}\math…

astro-ph.EP2026

The ESO SupJup Survey. X. A carbon isotope contrast in the young ROXs 12 system

N. Grasser, I. A. G. Snellen, S. de Regt +7

Emerging research suggests that elemental and isotopic ratios of exoplanet and brown dwarf atmospheres may serve as potential tracers of their formation pathways. The ESO SupJup Su…

astro-ph.EP2026

The ESO SupJup Survey IX: Isotopic evidence of a recent formation for Luhman 16AB

S. de Regt, I. A. G. Snellen, D. González Picos +8

The distinct formation pathways of directly-imaged exoplanets and isolated brown dwarfs might leave imprints in the inherited elemental and isotopic abundances, but such measuremen…

astro-ph.EP2025★ 11 cited

Multi-modal atmospheric characterization of Pictoris b: Adding high-resolution continuum spectra from GRAVITY

M. Ravet, M. Bonnefoy, G. Chauvin +24

We present the first VLTI/GRAVITY observations at R of Pic b. These four high S/N (20) K-band spectra conserve both the pseudo-continuum and molecular absorp…

astro-ph.EP2025★ 8 cited

The ESO SupJup Survey VIII. Chemical fingerprints of young L dwarf twins

N. Grasser, I. A. G. Snellen, S. de Regt +8

The potentially distinct formation pathways of exoplanets and brown dwarfs may be imprinted in their elemental and isotopic ratios. This work is part of the ESO SupJup Survey, whic…

astro-ph.EP2025★ 13 cited

The ESO SupJup Survey VII: Clouds and line asymmetries in CRIRES J-band spectra of the Luhman 16 binary

S. de Regt, I. A. G. Snellen, N. F. Allard +8

Brown dwarfs at the L-T transition likely experience an inhomogeneous clearing of the clouds in their atmospheres. The resulting surface of thin and thick cloudy patches has been p…

astro-ph.EP2025

The ESO SupJup Survey V: Exploring Atmospheric Variability and Orbit of the Super-Jupiter AB Pictoris b with CRIRES+

Siddharth Gandhi, Sam de Regt, Ignas Snellen +12

A growing number of directly-imaged companions have been recently characterised, with robust constraints on carbon-to-oxygen ratios and even isotopic ratios. Many companions and is…

astro-ph.EP2025★ 20 cited

The ESO SupJup Survey IV. Unveiling the carbon isotope ratio of GQ Lup B and its host star

D. González Picos, I. A. G. Snellen, S. de Regt +4

The carbon isotope ratio () is a potential tracer of giant planet and brown dwarf formation. The GQ Lup system, hosting the K7 T Tauri star GQ Lup…

astro-ph.EP2024★ 36 cited

The ESO SupJup Survey III: Confirmation of 13CO in YSES 1 b and Atmospheric Detection of YSES 1 c with CRIRES+

Yapeng Zhang, Darío González Picos, Sam de Regt +14

High-resolution spectroscopic characterization of young super-Jovian planets enables precise constraints on elemental and isotopic abundances of their atmospheres. As part of the E…

astro-ph.EP2024★ 1 cited

Four HD 209458 b transits through CRIRES+: Detection of HO and non-detections of CH, CH, and HCN

D. Blain, R. Landman, P. Mollière +1

HD 209458 b is one of the most studied exoplanets to date. Despite this, atmospheric characterisation studies yielded inconsistent species detections and abundances. Values reporte…

astro-ph.EP2024★ 23 cited

The ESO SupJup Survey II: The 12C/13C ratios of three young brown dwarfs with CRIRES

D. González Picos, I. A. G. Snellen, S. de Regt +7

Young brown dwarfs exhibit atmospheric characteristics similar to those of super-Jupiters, providing a unique opportunity to study planetary atmospheres. The ESO SupJup Survey, uti…

astro-ph.EP2024★ 37 cited

The ESO SupJup Survey I: Chemical and isotopic characterisation of the late L-dwarf DENIS J0255-4700 with CRIRES

S. de Regt, S. Gandhi, I. A. G. Snellen +9

It has been proposed that the distinct formation and evolution of exoplanets and brown dwarfs may affect the chemical and isotopic content of their atmospheres. Recent work has ind…