140 citations · 471 across the 27 of their papers we have counts for
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Different degrees of nitrogen and carbon depletion in the warm molecular layers of protoplanetary disks
Kenji Furuya, Seokho Lee, Hideko Nomura
Observations have revealed that the elemental abundances of carbon and oxygen in the warm molecular layers of some protoplanetary disks are depleted compared to those is the inters…
A new method for direct measurement of isotopologue ratios in protoplanetary disks: a case study of the CO/CO ratio in the TW Hya disk
Tomohiro C. Yoshida, Hideko Nomura, Kenji Furuya +2
Planetary systems are thought to be born in protoplanetary disks. Isotope ratios are a powerful tool for investigating the material origin and evolution from molecular clouds to pl…
Detection of HC18O+ in a protoplanetary disk: exploring oxygen isotope fractionation of CO
Kenji Furuya, Takashi Tsukagoshi, Chunhua Qi +4
The oxygen isotope fractionation scenario, which has been developed to explain the oxygen isotope anomaly in the solar system materials, predicts that CO gas is depleted in 18O in…
High Spatial Resolution Observations of Molecular Lines towards the Protoplanetary Disk around TW Hya with ALMA
Hideko Nomura, Takashi Tsukagoshi, Ryohei Kawabe +9
We present molecular line observations of 13CO and C18O J=3-2, CN N = 3 - 2, and CS J=7-6 lines in the protoplanetary disk around TW Hya at a high spatial resolution of ~9 au (angu…
The detection of dust gap-ring structure in the outer region of the CR Cha protoplanetary disk
Seongjoong Kim, Sanemichi Takahashi, Hideko Nomura +13
We observe the dust continuum at 225 GHz and CO isotopologue (12CO, 13CO, and C18O) J=2-1 emission lines toward the CR Cha protoplanetary disk using the Atacama Large Millimeter/Su…