288 citations · 5.1k across the 106 of their papers we have counts for
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ALMA Observations of a Gap and a Ring in the Protoplanetary Disk around TW Hya
Hideko Nomura, Takashi Tsukagoshi, Ryohei Kawabe +8
We report the first detection of a gap and a ring in 336 GHz dust continuum emission from the protoplanetary disk around TW Hya, using the Atacama Large Millimeter/Submillimeter Ar…
Development of a Method for the Observation of Lightning in Protoplanetary Disks Using Ion Lines
Takayuki Muranushi, Eiji Akiyama, Shu-ichiro Inutsuka +2
In this paper, we propose observational methods for detecting lightning in protoplanetary disks. We do so by calculating the critical electric field strength in the lightning matri…
Significant Gas-to-Dust Ratio Asymmetry and Variation in the Disk of HD 142527 and the Indication of Gas Depletion
Takayuki Muto, Takashi Tsukagoshi, Munetake Momose +14
We investigate the dust and gas distribution in the disk around HD 142527 based on ALMA observations of dust continuum, 13CO(3-2), and C18O(3-2) emission. The disk shows strong azi…
ALMA Observations of the Submillimeter Dense Molecular Gas Tracers in the Luminous Type-1 Active Nucleus of NGC 7469
Takuma Izumi, Kotaro Kohno, Susanne Aalto +30
We present ALMA Cycle 1 observations of the central kpc region of the luminous type-1 Seyfert galaxy NGC 7469 with unprecedented high resolution (0.5 0.4 = 165 pc $\…
The molecular composition of the planet-forming regions of protoplanetary disks across the luminosity regime
Catherine Walsh, Hideko Nomura, Ewine F. van Dishoeck
(Abridged) Near- to mid-IR observations of protoplanetary disks show that the inner regions (<10AU) are rich in small organic volatiles (e.g., C2H2 and HCN). Trends in the data sug…
Analytical Formulas of Molecular Ion Abundances and N2H+ Ring in Protoplanetary Disks
Yuri Aikawa, Kenji Furuya, Hideko Nomura +1
We investigate the chemistry of ion molecules in protoplanetary disks, motivated by the detection of NH ring around TW Hya. While the ring inner radius coincides with the C…