activity
20062026
most citedThe Near Infrared Imager and Slitless Spectrograph for the James Webb Space Telescope -- II. Wide Field Slitless Spectroscopy

106 citations · 2.1k across the 73 of their papers we have counts for

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astro-ph.EP2025

Spectroscopy of Free-Floating Planetary-Mass Objects and their disks with JWST

Belinda Damian, Aleks Scholz, Ray Jayawardhana +6

Free-floating planetary-mass objects (FFPMOs) are known to harbor disks at young ages. Here, we present 1-13 spectra for eight young FFPMOs with masses of 5-10 M$_\mathrm{Jup}…

astro-ph.EP2025

Detection of Hydrocarbons in the Disk around an Actively-Accreting Planetary-Mass Object

Laura Flagg, Aleks Scholz, V. Almendros-Abad +6

We present the 0.6--12-micron spectrum of Cha\,1107-7626, a 6-10 Jupiter-mass free-floating object in the 2\,Myr-old Chamaeleon-I star-forming region, from observations with…

astro-ph.EP2024★ 25 cited

The JWST/NIRISS Deep Spectroscopic Survey for Young Brown Dwarfs and Free-Floating Planets

Adam B. Langeveld, Aleks Scholz, Koraljka Mužić +9

The discovery and characterization of free-floating planetary-mass objects (FFPMOs) is fundamental to our understanding of star and planet formation. Here we report results from an…

astro-ph.EP2022★ 16 cited

Rogue planets and brown dwarfs: Predicting the populations of free-floating planetary mass objects observable with JWST

Aleks Scholz, Koraljka Muzic, Ray Jayawardhana +2

Free-floating (or rogue) planets are planets that are liberated (or ejected) from their host systems. Although simulations predict their existence in substantial numbers, direct ob…

astro-ph.EP2021★ 64 cited

Measuring the ratio of the gas and dust emission radii of protoplanetary disks in the Lupus star-forming region

E. Sanchis, L. Testi, A. Natta +15

We perform a comprehensive demographic study of the CO extent relative to dust of the disk population in the Lupus clouds, in order to find indications of dust evolution and possib…

astro-ph.EP2019★ 79 cited

A high binary fraction for the most massive close-in giant planets and brown dwarf desert members

C. Fontanive, K. Rice, M. Bonavita +3

Stellar multiplicity is believed to influence planetary formation and evolution, although the precise nature and extent of this role remain ambiguous. We present a study aimed at t…