9 papers
Native-resolution retrievals of VHS 1256-1257 b spanning the JWST/NIRSpec wavelength range: Chemical composition of a partially cloudy atmosphere
S. de Regt, N. Whiteford, B. E. Miles +3
The wide wavelength coverage and sensitivity offered by JWST enable detailed analyses of extrasolar atmospheres. At its highest resolution (R~2700), NIRSpec measures the absorption…
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…
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…
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…
Disentangling disc and atmospheric signatures of young brown dwarfs with JWST/NIRSpec
D. González Picos, S. de Regt, S. Gandhi +2
Young brown dwarfs serve as analogues of giant planets and provide benchmarks for atmospheric and formation models. JWST has enabled access to near-infrared spectra of brown dwarfs…
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…