6 papers
Isotopomer-Specific Carbon Isotope Ratio of Complex Organic Molecules in Star-Forming Cores
Ryota Ichimura, Hideko Nomura, Kenji Furuya +2
The recent observation of complex organic molecules (COMs) in interstellar ices by the James Webb Space Telescope (JWST), along with previous gas-phase detections, underscores the…
Winding Motion of Spirals in a Gravitationally Unstable Protoplanetary Disk
Tomohiro C. Yoshida, Hideko Nomura, Kiyoaki Doi +5
The discovery of wide-orbit giant exoplanets has posed a challenge to our conventional understanding of planet formation by coagulation of dust grains and planetesimals, and subseq…
Formation of unsaturated carbon chains through carbon chemisorption on solid CO
Masashi Tsuge, Germán Molpeceres, Ryota Ichimura +3
The interaction of carbon atoms with solid carbon monoxide (CO) is a fundamental process in astrochemistry, influencing the formation of complex organic molecules in interstellar e…
Detecting water ice and vapor disks originating from icy planetary bodies around white dwarfs with future PRIMA observations
Ayaka Okuya, Hideko Nomura
Observations of atmospheres of polluted white dwarfs provide insights into the elemental composition of accreted exoplanets and exo-asteroids. However, they poorly constrain the ab…
Evidence for Jet/Outflow Shocks Heating the Environment Around the Class I Protostellar Source Elias 29: FAUST XXI
Yoko Oya, Eri Saiga, Anna Miotello +1
We have observed the late Class I protostellar source Elias~29 at a spatial-resolution of 70~au with the Atacama~Large~Millimeter/submillimeter~Array (ALMA) as part of the FAUST La…
Dust Scattering Albedo at Millimeter-Wavelengths in the TW Hya Disk
Tomohiro C. Yoshida, Hideko Nomura, Takashi Tsukagoshi +3
Planetary bodies are formed by coagulation of solid dust grains in protoplanetary disks. Therefore, it is crucial to constrain the physical and chemical properties of the dust grai…