資料9-J

Activity Report of Commission J
March 31 to September 25, 2017
September 25, 2017
Kenta Fujisawa (Yamaguchi University)

ALMA projectLatest scientific topics from ALMA press release (July 29, 2017)
ALMA Confirms Complex Chemistry in Titan’s Atmosphere: Saturn’s Moon Offers Glimpseof Earth’s Primordial Past
Saturn’s frigid moon Titan has a curious atmosphere. In addition to a hazy mixture ofnitrogen and hydrocarbons like methane and ethane, Titan’s atmosphere also contains anarray of more complex organic molecules, including vinyl cyanide, which astronomersrecently uncovered in archival ALMA data. Under the right conditions, like those found on
the surface of Titan, vinyl cyanide may naturally coalesce into microscopic spheres
resembling cell membranes.

Molecules of vinyl cyanide reside in the atmosphere of Titan, Saturn’s largest moon. Titan
is shown in an optical (atmosphere) infrared (surface) composite from NASA’s Cassini
spacecraft. Credit: B. Saxton (NRAO/AUI/NSF); NASA

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Activities of meetings
ALMA Cycle 5 Town Meeting
Date: April 5, 2017
Venue: Mitaka, National Astronomical Observatory of JapanALMA Observatory was announced the ALMA Cycle 5 Call for Proposals (CfP) for
scientific observations. We use Observing Tool (OT) for proposal preparation (parameter setting,estimation of observing time etc.) and submit an ALMA proposal. In Town Meeting, we, East
Asia ALMA Regional Center (EAARC), will explain capability of ALMA Cycle 5 and we will
have an opportunity to consult about proposal preparation through Q&A.
NRO45m/ASTE Single Dish Science Workshop 2017
Date: August 1-2, 2017
Venue: Nobeyama Radio Observatory

At Nobeyama Radio Observatory, a new phase of 45m radio telescope is going to start.
Now, three legacy program is finishing, and it is expected that world-leading preeminent results
will come. Furthermore, we are entering the phase to achieve cutting-edge scientific output
through new observations using receivers including FOREST.
In the southern hemisphere, ASTE is offering 345 GHz and 450 GHz receiver capabilities,
and new and unique results are being published, including those leading to ALMA observations.
It is also expected that the new detector Deshima (On-chip Filterbank Spectrometer forSubmillimeter Wave Cosmology) will open our view to high-z universe.
In this workshop, we focus on scientific results from single-dish radio telescopes.

(1) Weintroduce up-to-date scientific results with Nobeyama 45 m telescope and ASTE. (2) We
discuss future requirements from the scientific point of view.

We invite oral and poster

presentations. Possible topics include; scientific results with Nobeyama 45m telescope, ASTE,
or other single-dish telescopes, possibilities of new instrumental development, theoreticalstudies based on observational results, etc.
The 16thIVS NICT Technology Development Center Symposium

Date: June 21, 2017
Venue: NICT Kashima Space Technology Center, Main Building
As an activity of Technology Development Center of IVS （International VLBI Service forGeodesy and Astrometry ） , NICT has been organizing annual symposium focused on
Technology development related with space geodetic techniques. Proceedings of thesymposium

have

been

published

asIVS

NICT-TDC

News(http://www2.nict.go.jp/sts/stmg/ivstdc/news-index.html) and delivered to domestic and資料9-J

international institutes and individuals working on VLBI and space geodesy.
One of the recent research subject of technology development in VLBI and in radio
astronomy is broadband observation. NICT is conducting a new broadband observation
technique named GALA-V for a target of distant frequency comparison. This broadband
observation system is intended to be compatible with the next generation geodetic VLBI system
VGOS. The subject of symposium is not limited only VLBI, but also single dish observation
technique for radio astronomy, space geodetic technique and research result including GNSS,SLR and, local tie observations. We welcome contributions from broad field of view in theseresearch subject.
Symposium "Evolution of Molecules in Space"
Date: June 27-19, 2017
Venue: Institute of Low Temperature Science, Hokkaido University

We try to approach the answer to the question of how the molecule evolved and the planet,
the earth, and the life were formed in the solar system that was born 4.6 billion years ago in theuniverse where various structures were formed since Big Bang. Focusing on ice and organic
matter composed of the most abundant elements (H, C, O, N), the whole picture of molecular
evolution from the interstellar molecular cloud to the protoplanetary system will be explored inboth experiment and theory.
Workshop ‘Formation of high mass star and cluster in Magellanic Clouds’
Date: July 26-27, 2017
Venue: I-site Namba, Osaka

Recent observations of molecular clouds in the Milky Way and Magellanic Clouds revealthat the interaction between molecular clouds has a major influence on the formation of highmass stars and clusters. In this workshop, through the results of detailed observations ofmolecular cloud and HI in the Magellanic clouds where large clusters are still being formed,through consideration of environmental differences such as heavy element quantity, theformation process of high mass star formation will be discussed. High resolution observation ofnearby galaxies and comparison with theoretical studies are also important themes.
Radio Astronomy Forum meeting 2017
Date: September 11, 2017
Venue: Hokkaido University
Topics: Business meeting