Seminars

The UHH Research Park includes the headquarters for the East Asian Observatory, the Caltech Submillimeter Observatory, Subaru, Gemini, UKIRT, the Smithsonian Submillimeter Array and the Institute for Astronomy, plus the astronomers at the University of Hawaii at Hilo. We are one of the major centres for astronomy in the world and encourage all visitors to the JCMT to take advantage of the proximity of these institutes, and give a seminar while in Hilo. Your talk will be advertised at each of the above institutes.

Upcoming Seminar:

Hawaii: Tuesday, August 26 at 4:00 PM
Taiwan & China: Wednesday,  August 27 at 10:00 AM
Japan & Korea: Wednesday,  August 27 at 11:00 AM
Title:  The role of streamers and the dense core environment in the Class 0 protostar IRAS 16544-1604

Speaker:  Miyu Kido   (ASIAA/Kagoshima University)
Abstract:
Investigating mass accretion mechanisms from a dense core to a protoplanetary disk is essential for understanding star and planet formation. Recent radio observations have detected elongated gas structures, known as streamers, extending from disks on scales of 100-1000 au, which deliver material to the disk. While such asymmetric accretion is expected to influence disk evolution, the physical properties of streamers and their effects on disks remain poorly understood. In this presentation, I focus on the Class 0 protostar IRAS 16544-1604, one of the targets of the ALMA Large Program eDisk, and derive the mass and mass accretion rate of the streamers. I also investigate the environment of the associated dense core using JCMT observations. By comparing the mass between streamers and the dense core, we found that the gas mass transported by the streamers is much smaller than that supplied from the dense core. I will discuss the role of the streamers in mass delivery to the disk and explore their possible formation mechanisms based on the analysis of the dense core environment.
Please use the Zoom link to join this seminar:
Meeting ID:  886 0779 0606
Passcode: 090462

Where and How:

EAO seminars are (usually) held in the second floor conference room at the East Asia Observatory, 660 N. A’ohoku Place, Hilo, Hawaii. Please note that access to EAO is possible only through the main entrance (through the side doors facing Subaru). However since COVID we encourage astronomers to join via zoom.

We stream all of our seminars through the Zoom video conferencing application. If you would like to view the seminar via Zoom, links are sent out on the seminar mailing list (see below) or you may contact the helpdesk in advance of the talk and we will make sure that the option is available to you.

A full list of past seminar speakers can be found below for the current and previous years. These pages also contain links to PDF copies of the seminar slides, video recordings of the seminars, and other materials, when available.

To join the Seminar e-mail list:

EAO Seminars are sent out via eaoseminar@eaobservatory.org. If you wish to join this seminar list please send an e-mail to helpdesk@eaobservatory.org.

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