3 papers
astro-ph.EP2025
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…
astro-ph.EP2025
High CO/H2 ratios supports an exocometary origin for a CO-rich debris disk
Kevin D. Smith, Luca Matrà, 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…
astro-ph.EP2024
Low CI/CO Abundance Ratio Revealed by HST UV Spectroscopy of CO-rich Debris Disks
Aoife Brennan, Luca Matrà, Sebastián Marino +6
The origin and evolution of CO gas in debris disks has been debated since its initial detection. The gas could have a primordial origin, as a remnant of the protoplanetary disk or…