activity
20132026
most citedThe Near-Infrared Spectrograph (NIRSpec) on the James Webb Space Telescope I. Overview of the instrument and its capabilities

665 citations · 2.9k across the 68 of their papers we have counts for

collaborators
Showing 2019Show all

7 papers · 1 filter

astro-ph.EP2019★ 16 cited

USco1621 B and USco1556 B: Two wide companions at the deuterium-burning mass limit in Upper Scorpius

Patricia Chinchilla, Víctor J. S. Béjar, Nicolas Lodieu +6

(Abridged) Our aim is to identify analogues of gas giant planets, as companions at wide separations of very young stars. To identify these objects, we cross correlated the Visible…

astro-ph.EP2019★ 31 cited

Cloud Atlas: Weak color modulations due to rotation in the planetary-mass companion GU Psc b and 11 other brown dwarfs

Ben W. P. Lew, Dániel Apai, Yifan Zhou +10

Among the greatest challenges in understanding ultra-cool brown dwarf and exoplanet atmospheres is the evolution of cloud structure as a function of temperature and gravity. In thi…

astro-ph.SR2019★ 21 cited

Spectral library of age-benchmark low-mass stars and brown dwarfs

E. Manjavacas, N. Lodieu, V. J. S. Béjar +3

In the past years, some extremely red brown dwarfs were found. They were believed to have low surface gravity, but many of their spectral characteristics were similar to those of h…

astro-ph.EP2019★ 29 cited

A new take on the low-mass brown dwarf companions on wide-orbits in Upper-Scorpius

Simon Petrus, Mickaël Bonnefoy, Gaël Chauvin +10

The Upper-Scorpius association (5-11 Myr) contains a unique population of low-mass (M<30 MJup) brown-dwarfs. The detailed relative characterization of their physical properties (ma…

astro-ph.SR2019★ 26 cited

Cloud Atlas: Variability in and out of the Water Band in the Planetary-mass HD 203030B Points to Cloud Sedimentation in Low-gravity L Dwarfs

Paulo A. Miles-Páez, Stanimir Metchev, Dániel Apai +11

We use the Wide Field Camera 3 on the {\sl Hubble Space Telescope} to spectrophotometrically monitor the young L7.5 companion HD~203030B. Our time series reveal photometric variabi…

astro-ph.SR2019★ 39 cited

Cloud Atlas: Rotational Spectral Modulations and potential Sulfide Clouds in the Planetary-mass, Late T-type Companion Ross 458C

Elena Manjavacas, Daniel Apai, Ben W. P. Lew +11

Measurements of photometric variability at different wavelengths provide insights into the vertical cloud structure of brown dwarfs and planetary-mass objects. In seven Hubble Spac…