562 citations · 2.8k across the 51 of their papers we have counts for
9 papers · 1 filter
Low-mass Pop III star formation due to the HD-cooling induced by weak Lyman-Werner radiation
Sho Nishijima, Shingo Hirano, Hideyuki Umeda
Lyman-Werner (LW) radiation photodissociating molecular hydrogen (H) influences the thermal and dynamical evolution of the Population III (Pop III) star-forming gas cloud. The…
Secondary outflow driven by the protostar Ser-emb 15 in Serpens
Asako Sato, Kazuki Tokuda, Masahiro N. Machida +6
We present the detection of a secondary outflow associated with a Class I source, Ser-emb 15, in the Serpens Molecular Cloud. We reveal two pairs of molecular outflows consisting o…
Formation of Massive and Wide First-star Binaries in Radiation Hydrodynamics Simulations
Kazuyuki Sugimura, Tomoaki Matsumoto, Takashi Hosokawa +2
We study the formation of Pop III stars by performing radiation hydrodynamics simulations for three different initial clouds extracted from cosmological hydrodynamics simulations.…
Early Planet Formation in Embedded Disks (eDisk). VII. Keplerian Disk, Disk Substructure, and Accretion Streamers in the Class 0 Protostar IRAS 16544-1604 in CB 68
Miyu Kido, Shigehisa Takakuwa, Kazuya Saigo +34
We present observations of the Class 0 protostar IRAS 16544-1604 in CB 68 from the ''Early Planet Formation in Embedded Disks (eDisk)'' ALMA Large program. The ALMA observations ta…
Early Planet Formation in Embedded Disks (eDisk). IV. The Ringed and Warped Structure of the Disk around the Class I Protostar L1489 IRS
Yoshihide Yamato, Yuri Aikawa, Nagayoshi Ohashi +28
Constraining the physical and chemical structure of young embedded disks is crucial to understanding the earliest stages of planet formation. As part of the Early Planet Formation…
Early Planet Formation in Embedded Disks (eDisk). I. Overview of the Program and First Results
Nagayoshi Ohashi, John J. Tobin, Jes K. Jørgensen +34
We present an overview of the Large Program, ``Early Planet Formation in Embedded Disks (eDisk)'', conducted with the Atacama Large Millimeter/submillimeter Array (ALMA). The ubiqu…
Early Structure Formation from Primordial Density Fluctuations with a Blue, Tilted Power Spectrum: High-Redshift Galaxies
Shingo Hirano, Naoki Yoshida
Recent observations by the James Webb Space Telescope (JWST) discovered unexpectedly abundant luminous galaxies at high redshift, posing possibly a severe challenge to popular gala…
Formation of first star clusters under the supersonic gas flow -- I. Morphology of the massive metal-free gas cloud
Shingo Hirano, Youcheng Shen, Sho Nishijima +2
We performed simulations of the first star formation with initial supersonic gas flows relative to the dark matter at the cosmic recombination era. Increasing the initial stre…
Crescent-Shaped Molecular Outflow from the Intermediate-mass Protostar DK Cha Revealed by ALMA
Naoto Harada, Kazuki Tokuda, Hayao Yamasaki +6
We report on an Atacama Large Millimeter/submillimeter Array (ALMA) study of the Class I or II intermediate-mass protostar DK Cha in the Chamaeleon II region. The 12CO (J=2-1) imag…