7 papers
High CO/H2 ratios supports an exocometary origin for a CO-rich debris disk
Kevin D. Smith, Luca MatrÃ, Ke Zhang +9
Over 20 exocometary belts host detectable circumstellar gas, mostly in the form of CO. Two competing theories for its origin have emerged, positing the gas to be primordial or seco…
Water ice in the debris disk around HD 181327
Chen Xie, Christine H. Chen, Carey M. Lisse +13
Debris disks are exoplanetary systems that contain planets, minor bodies (i.e., asteroids, Kuiper belt objects, comets, etc.), and micron-sized debris dust. Since water ice is the…
JWST-TST High Contrast: Medium-resolution spectroscopy reveals a carbon-rich circumplanetary disk around the young accreting exoplanet Delorme 1 AB b
Mathilde Mâlin, Kimberly Ward-Duong, Sierra L. Grant +21
Young accreting planetary-mass objects are thought to draw material from a circumplanetary disk (CPD) composed of gas and dust. While the gas within the disk is expected to dispers…
JWST/NIRSpec Detects Warm CO Emission in the Terrestrial-Planet Zone of HD 131488
Cicero X. Lu, Isabel Rebollido, Sean Brittain +12
We have obtained a high-resolution, JWST NIRSpec -- m spectrum of the debris disk around HD 131488. We discover CO fundamental emission indicating the presence of…
Probing the era of giant collisions: millimeter observations of the HD 166191 system
Kadin Worthen, Christine H. Chen, A. Meredith Hughes +5
We present non-simultaneous ALMA band 7 and SMA observations of the HD 166191 disk, which was recently thought to have a collision in its terrestrial planet zone. Both observations…
Argon in beta Pictoris -- entrapment and release of volatile in disks
Yanqin Wu, Kadin Worthen, Alexis Brandeker +1
Chemical compositions of planets reveal much about their formation environments. Such information is well sought-after in studies of Solar System bodies and extra-solar ones. Here,…