No.25

Angular momentum evolutionof disk galaxies at high redshift

Taku Okamura, Kazuhiro Shimasaku, Ryota Kawamata (University of Tokyo)
arXiv:1709.03275

Taku Okamura

Near-IR imaging polarimetry toward RCW106

Shohei Tamaoki, Koji Sugitani (Nagoya City University), and Takayoshi Kusune (NAOJ)
We carried out near-IR imaging polarimetry towards the RCW106 molecular cloud complex with the imaging polarimeter SIRPOL
mounted on the IRSF 1.4m telescope at SAAO. The green vectors show the direction of the magnetics field for H- band. The left panel inthe figure indicates that the global magnetic field seems to run along the cloud complex elongation. However, in the right panel extending
the yellow box, the local magnetic fields are not exactly parallel to the elongation of small, local filaments.
-50:00:00

1.25e+23

9.36e+22bl

6.99e+22G332.8662-00.5657

Tamaoki Shohei
3.89e+22-50:40:00

G332.8151-00.6543
2.89e+22G332.7013-00.5874
2.13e+22

1.54e+22-51:00:00

Decl. (J2000)-50:20:00

G332.8256-00.5498
5.20e+22

1.06e+22

6.53e+21

16:22:00

16:21:00

16:20:00

16:10:00

R.A. (J2000)
2 82e+21G332.6483-00.6002
G332.6450-00.6036

Astronomical heritage activity in Mongolia
Mongolia is one of the country with natural heritage. Herders'daily lives are dependent on nature and weather.
Protect environment through understanding the relation
between human and nature.
We tried to improve universe awareness for public, to love theliving planet in the universe and protect environment.
Nomadic people participated in these activities.
We would like to share our activities and experience
astronomical heritage in different regions.
It is important to attract tourists in region using Astronomy
and natural heritage.

Thermal Sunyaev-Zel‘dovich effect in theIGM with Primordial Magnetic Fields
TEPPEI MINODA, K. Hasegawa, H. Tashiro, K. Ichiki, N. Sugiyama
Cosmology Group, Nagoya University, Japan

EAYAM 2017@Ishigaki Island

Ishigaki island

Q. Origin of the cosmic magnetic fields?

MyhousePrimordial Magnetic Fields?
Thishotel

Teppei Minoda

Credit: NASAHow can we observe the PMFs?
> In my poster presentation!!

21-cm Signal Originating within
The Vicinity of The First Stars

Poster #29

T. TANAKA

Aim:%To%Investigate%the%impact%of%gas%density%profile%on%the%21:cm%
line%signal,%Method:%1D%Radiative%Hydrodynamics%Simulation
Uniform'gas'density'fieldlog (21-cm line signal [mK])log (21-cm line signal [mK])Power,law'gas'density'profile

Toshiyuki Tanakalog (distance from a star [kpc])

Parameter'set:
Mstar = 200M
Mhalo = 106 M
z = 20log (distance from a star [kpc])

Conclusion:%Gas%density%profile%in%a%halo%enhances%21:
cm%line%signal%in%amplitude%at%younger%stellar%age.

A.*Mechanism*

C.*Tools*

Magneto-rota5onal*Instability(MRI)

MHD-GAMER

Differential rotation + Weak magnetic field

Adap5ve*Mesh*Reﬁnement*(AMR)

GPU*paralleliza5onmo miMCmi

ref:hCps://developer.apple.com/
documentaFon/gameplaykit/gkoctreemomomiref):)Mark)Ilg)et)al.))
AIAA)Atmospheric)Flight)Mechanics)
Conference)08);)11)August)2011,)Portland,)Oregon

D.*Results*

Tzu-Hsiang Chao
Performance

B.*Equa5on*to*solve*

Shearing-sheet*approximated*MHD*equa5onBackground shearDifferentialRotating framerotating disk+Ω(R)=!R!

−q LocalizationPreliminary*3D-MRI*test

a. ~10-timefaster.

Background shearb. Stable andworkablein AMR.

The spiral arm structures of the Milky Way galaxy
revealed using the longer period Mira variables

Riku Urago
Kagoshima University Infrared Astronomy group
MagAddress k4841512@kadai.jp

We challenge to reveal the arm structure of theentire galaxy using the longer period Miras !

6Y[Kpc]108

Urago Riku

10014

1016

2.2

2.6

3The 3.4 µm(WISE I) PL relation
have clear linear correlation.

[log P]

10010X[Kpc]

The longer period miras are
relatively located along to arms.

No. 34“Investigation of radio structures of high-z quasars
by VLBI observations”
Yousuke FURUYA (Yamaguchi univ.)
Collaborators: Kenta FUJISAWA, Kotaro NIINUMA (Yamaguchi), Z. Q. Shen (Shanghai)• Purpose

Yosuke Furuya

Exploring nature of radio structures for high-z quasars.

• Methodobserving nine radio sources by using Very Long Baseline
Interferometer (VLBI)▷▷▷ Succeeded in estimating parameter of AGN jet from the VLBI Images

Please come my poster!!
EAYAM 2017@Ishigaki Island, JAPAN Nov. 13 - 17, 2017