資料7-JActivity Report of Commission J
July 2013 to November 2013
Nov 26, 2013
Kenta Fujisawa (Yamaguchi University)

ALMA project
Nov 01, 2013 Successful Interferometer Test with Japanese Band 10 Receiver -Birth of Highest Frequency Radio Interferometer
On October 26 (Chilean Time), the Joint ALMA Observatory (JAO) successfully
detected interference fringes from Callisto (a satellite of Jupiter) and Orion KL at863 GHz and 806 GHz respectively in an interferometer test with two Band 10
receivers developed by the National Astronomical Observatory of Japan (NAOJ).
This is the highest frequency ever achieved by an interferometer.

Latest scientific topics:
Oct 24, 2013 Unique Chemical Composition Surrounding Supermassive Black Hole-- A Step toward Development of New Black Hole Exploration Method
An international research team led by Takuma Izumi, a second-year master's
student of science at the University of Tokyo, and Kotaro Kohno, a professor at theUniversity of Tokyo, successfully captured a detailed image of high-density
molecular gas around an active supermassive black hole at the center of a galaxy
called NGC 1097 at the highest sensitivity ever achieved. The observation resultshows that there is a unique chemical composition characterized by enhancement ofhydrogen cyanide (HCN) around the black hole, which would be caused by hightemperature heating of the environment surrounding the black hole. It is expectedthat this new method focusing on the difference of emission frequencies frommolecules uniquely found around black holes may open the way for "the search for ahidden black hole" which is overcast with dust particles and optically invisible.
The research findings are presented in the article "Submillimeter ALMA
Observation of the Dense Gas in the Low-Luminosity Type-1 Active Nucleus ofNGC 1097" published in the Publication of the Astronomical Society of Japan, Vol.
65, of October 25, 2013.

Activities of meetings (1) ALMA workshops
East-Asian ALMA Science Workshop 2013
Date: 2-4 September, 2013
Venue: Academia Sinica Institute of Astronomy and Astrophysics, Taipei, Taiwan

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URL: http://events.asiaa.sinica.edu.tw/workshop/20130902/
Aims and Scope: This is the joint ALMA science workshop among the three
East-Asiancountries,

Japan,

Taiwan,andKorea,organizedbyASIAA(http://www.asiaa.sinica.edu.tw), National Astronomical Observatory of Japan(NAOJ: http://www.nao.ac.jp/en), and Korea Astronomy and Space Science Institute(KASI: http://www.kasi.re.kr/english/). The goal of this joint workshop is to promotescientific collaborations among the East-Asian ALMA communities in preparation
for the upcoming and future ALMA proposal calls.
In this workshop, the latest status of the ALMA project will be reported, and invitedreviews of the following research fields will be given:
Cosmology and the high-z universe
Extragalaxies
High-mass star formation and astrochemistryLow-mass star formation
Circumstellar disks
In addition, ample breakout sessions will be scheduled during the workshop forbrainstorming and discussing ALMA science in various subfields.
ALMA workshop for nearby galaxies
Date: 30 September 2013
Place: National Astronomical Observatory of Japan, Mitaka
Overview: This ALMA workshop focuses on the observational study plan with
ALMA for nearby galaxies. The main topics are:
ALMA performance at cycle 2
Review of the recent results
Proposals for the cycle 2 observation
Future plans.

ALMA workshop – Dynamics of the mass-loss process of stars –Date: 22-23 October 2013
Place: National Astronomical Observatory of Japan, Mitaka
Overview: This ALMA workshop focuses on the observational study of the mass-loss
process of evolved stars which is best suitable target to ALMA observation.

ALMA workshop: ALMA deep survey study
Date: 24 October 2013
Place: National Astronomical Observatory of Japan, Mitaka
Overview: This ALMA workshop focuses on the possible deep survey and expectedscientific outcomes.

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ALMA workshop for the Galactic Plane Survey
Date: 8 November 2013
Place: National Astronomical Observatory of Japan, Mitaka
Overview: This ALMA workshop focuses on the NRO Galactic plane survey andcollaboration with ALMA observation.

ALMA Polarization Meeting
Date: 19 November 2013
Place: National Astronomical Observatory of Japan, Mitaka
Overview: ALMA’s polarization (limited) capability is to be opened for next Call for
Proposals Cycle 2, as to be announced on Oct 24. Polarimetric data at mm/submm
wavelengths will provide us the opportunity to investigate the magnetic field
properties in various astronomical objects. East Asian ARC will host this meeting todiscuss sciences done with polarization observations with ALMA. We will give you
the specifications of the ALMA's polarization observations for this call Cycle 2 andto guide you how you prepare your polarization observations with ALMA.
first discuss sciences using polarization data with ALMA.

We

After the science

session, the details of the ALMA's polarization capability are to be explained
specifically for this call for proposals (Cycle 2). This includes the tutorial session forthe setting of polarization observations using the Cycle 2 Observing Tool (OT).
ALMA Galactic Center workshop 2013
Date: 26-27 November 2013
Place: Keio University, Hiyoshi
Overview: This ALMA workshop focuses on the observational study of the Galactic
Center region with ALMA cycle 2.

Activities of meetings (2) General Meetings
VERA User’s Meeting
Date: 2-3 October 2013
Place: National Astronomical Observatory of Japan, Mitaka

NRO User's Meeting
Date: 24-25 July 2013
Place: Nobeyama Astronomical Observatory

The formation and evolution of disk galaxies
Date: 26-28 September 2013
Place: National Astronomical Observatory of Japan, Mitaka

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The 9th East Asian Meeting of Astronomy (EAMA9)

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Date: October 14-17, 2013
Place: National Central University, Taoyuan, Taiwan
Overview: The EAMA, East Asian Meeting on Astronomy, has more than two
decades of history in the promotion and organization for the cooperation ofastronomical efforts in the East Asian region. Since the formation of EACOA, theEast Asian Core Observatories Association in 2005, EAMA is one of our principal
sponsored activities. During the past eight EAMA meetings, fruitful discussions
and interactions among regional astronomers have greatly promoted theastronomical research, education, and public outreach in East Asia. The 9th-EAMA
meeting is being held in Taiwan, and we look forward to further growth in ourcooperation and collaborations.

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