159 citations · 446 across the 26 of their papers we have counts for
26 papers
A Hybrid Origin for the Multiple Ring-Gap Structures in the Large Protoplanetary Disk V1094 Sco: A Low-Mass Planet and Secular Gravitational Instability
Masayuki Yamaguchi, Masahiro N. Machida, Ryosuke T. Tominaga +7
High spatial resolution observations reveal that some protoplanetary disks host multiple ring-gap pairs at large stellocentric radii, yet their physical origin remains unsettled. W…
Nonthermal Velocity Dispersion in the Outer Disk of HL Tau
Jinshi Sai, Shigehisa Takakuwa, Hsi-Wei Yen +2
Turbulence in protoplanetary disks plays a crucial role in the evolution of disk structures and the planet formation process therein. However, the strength of the turbulence remain…
Morphological and Kinematical Diagnostic of FU Orionis-type Outburst Mechanisms
Jinshi Sai, Eduard I. Vorobyov, Alexandr Skliarevskii +1
We investigated the possibility of determining the mechanism of the FU Orionis-type outburst based on molecular line observations of protoplanetary disks with synthetic observation…
Early Planet Formation in Embedded Disks (eDisk) XXII: Keplerian disk, disk structures and jets/outflows in the Class 0 protostar IRAS 04166+2706
Nguyen Thi Phuong, Chang Won Lee, John J. Tobin +20
We present ALMA observations of the Class 0 protostar IRAS 04166+2706, obtained as part of the ALMA large program Early Planet Formation in Embedded Disks (eDisk). These observatio…
Early Planet Formation in Embedded Disks (eDisk) XVII: A Compact but Structured Keplerian Disk and Large-scale Streamers Revealed in the Class I Protostellar System IRAS 04169+2702
Ilseung Han, Woojin Kwon, Yusuke Aso +22
We present high-resolution (0.05"; 8 au) dust continuum and molecular line observations toward the Class I protostellar system IRAS 04169+2702 in the Taurus B213 region, as p…
Hints of Disk Substructure in the First Brown Dwarf with a Dynamical Mass Constraint
Alejandro Santamaría Miranda, Pietro Curone, Laura Pérez +14
We present high-resolution ALMA observations at 0.89 mm of the Class II brown dwarf 2MASS J04442713+2512164 (2M0444), achieving a spatial resolution of 0046 (…
Early Planet Formation in Embedded Disks (eDisk) XXI: Limited role of streamers in mass supply to the disk in the Class 0 protostar IRAS 16544-1604
Miyu Kido, Hsi-Wei Yen, Jinshi Sai +17
Asymmetric and narrow infalling structures, often called streamers, have been observed in several Class 0/I protostars, which is not expected in the classical star formation pictur…
An embedded Disk (eDisk) in the IceAge: Investigating the jet and outflow from CED 110 IRS4
Mayank Narang, Nagayoshi Ohashi, John J. Tobin +3
We present a comprehensive study of the large-scale structure, jet and outflow morphology, and kinematics of the Class 0/I protostellar binary Ced 110 IRS4, using JWST NIRCam (F150…
Early Planet Formation in Embedded Disks (eDisk) XVI: An asymmetric dust disk driving a multi-component molecular outflow in the young Class 0 protostar GSS30 IRS3
Alejandro Santamaria-Miranda, Itziar de Gregorio-Monsalvo, Nagayoshi Ohashi +17
We present the results of the ALMA Large Program Early Planet Formation in Embedded disks observations of the Class 0 protostar GSS30 IRS3. Our observations included 1.3 mm continu…
Early Planet Formation in Embedded Disks (eDisk). XI. A high-resolution view toward the BHR 71 Class 0 protostellar wide binary
Sacha Gavino, Jes K. Jørgensen, Rajeeb Sharma +25
We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of the binary Class 0 protostellar system BHR 71 IRS1 and IRS2 as part of the Early Planet Formation in…
Early Planet Formation in Embedded Disks (eDisk) XV: Influence of Magnetic Field Morphology in Dense Cores on Sizes of Protostellar Disks
Hsi-Wei Yen, Jonathan P. Williams, Jinshi Sai +15
The magnetic field of a molecular cloud core may play a role in the formation of circumstellar disks in the core. We present magnetic field morphologies in protostellar cores of 16…
Multiple Outflows around a Single Protostar IRAS 153983359
Jinshi Sai, Hsi-Wei Yen, Masahiro N. Machida +4
We present the results of our mosaic observations of a single Class 0 protostar IRAS 153983359 with Atacama Compact Array (ACA) in the CO $J=2\mbox{-}1$ line. The new observatio…
Spectral Line Analysis/Modeling (SLAM) I: pvanalysis
Yusuke Aso, Jinshi Sai
Line observations of young stellar objects (YSOs) at (sub)millimeter wavelengths provide essential information of gas kinematics in star and planet forming environments. For Class…
Early Planet Formation in Embedded Disks (eDisk) XII: Accretion streamers, protoplanetary disk, and outflow in the Class I source Oph IRS63
Christian Flores, Nagayoshi Ohashi, John J. Tobin +25
We present ALMA observations of the Class I source Oph IRS63 in the context of the Early Planet Formation in Embedded Disks (eDisk) large program. Our ALMA observations of Oph IRS6…
Early Planet Formation in Embedded Disks (eDisk). VIII. A Small Protostellar Disk around the Extremely Low-Mass and Young Class 0 Protostar, IRAS 15398-3359
Travis J. Thieme, Shih-Ping Lai, Nagayoshi Ohashi +22
Protostellar disks are a ubiquitous part of the star formation process and the future sites of planet formation. As part of the Early Planet Formation in Embedded Disks (eDisk) lar…
Early Planet Formation in Embedded Disks (eDisk) V: Possible Annular Substructure in a Circumstellar Disk in the Ced110 IRS4 System
Jinshi Sai, Hsi-Wei Yen, Nagayoshi Ohashi +25
We have observed the Class 0/I protostellar system Ced110 IRS4 at an angular resolution of (10 au) as a part of the ALMA large program; Early Planet Formation in the…
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). II. Limited Dust Settling and Prominent Snow Surfaces in the Edge-on Class I Disk IRAS 04302+2247
Zhe-Yu Daniel Lin, Zhi-Yun Li, John J. Tobin +26
While dust disks around optically visible, Class II protostars are found to be vertically thin, when and how dust settles to the midplane are unclear. As part of the Atacama Large…
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) III: A first high-resolution view of sub-mm continuum and molecular line emission toward the Class 0 protostar L1527 IRS
Merel L. R. van 't Hoff, John J. Tobin, Zhi-Yun Li +25
Studying the physical and chemical conditions of young embedded disks is crucial to constrain the initial conditions for planet formation. Here, we present Atacama Large Millimeter…
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…
Anisotropic Ionizing Illumination from an M-type Pre-main Sequence Star, DM Tau
Yuka Terada, Hauyu Baobab Liu, David Mkrtichian +6
The powerful, high-energy magnetic activities of young stars play important roles in the magnetohydrodynamics in the innermost parts of the protoplanetary disks. In addition, the a…
No evidence of the significant grain growth but tentative discovery of disk substructure in a disk around the Class I Protostar L1489 IRS
Satoshi Ohashi, Hiroshi Kobayashi, Jinshi Sai +1
For revealing the first step of the plant formation, it is important to understand how and when dust grains become larger in a disk around a protostar. To investigate the grain gro…
Which Part of Dense Cores Feeds Material to Protostars?: The Case of L1489 IRS
Jinshi Sai, Nagayoshi Ohashi, Anaëlle J. Maury +4
We have conducted mapping observations () of the Class I protostar L1489 IRS using the 7-m array of the Atacama Compact Array (ACA) and the IRAM-30m telescope in t…