[Speaker 1]
Satoshi Tanioka, M1, SOKENDAI (Supervisor; Yoichi Aso)
[Title]
Towards Direct Measurement of the Coating Thermal Noise using Cryogenic Optical Cavities

[Speaker 2]
Hiroyuki Ishikawa, M1, SOKENDAI (Supervisor; Takayuki Kotani)
[Title]
Metallicity determination of M dwarfs through synthetic spectral fitting in the near-infrared
[Abstract]
Recently many exoplanet surveys targeting M dwarfs have been planned or conducted around the world. In order to discuss the parameters and population of the planets they will find, our understanding of their host stars are important. The precise parallaxes of the stars measured by Gaia or Hipparcos can be used to derive luminosities and then infer masses and radii, but not metallicities. The most common method to determine the metallicities of FGK-type stars is the synthetic spectral fitting in the optical region. However, M dwarfs have cool atmosphere which enable the formation of molecules with complex absorption bands, and so it is difficult to apply the method. Therefore, most of the studies about the metallicities of M dwarfs have been based on empirical methods so far. Thesedays, some high-resolution near-infrared spectroscopes are constructed and the synthetic spectral fitting begins to become possible in the near-infrared. It is promising method because M dwarfs is brighter and have fewer molecular lines in the near-infrared region than optical. In this presentation I introduce the paper by Onehag et al. (2012) who challenged it for the first time using CRIRES at ESO-VLT. We are planning to apply such method to later type M dwarfs by use of the data of IRD planet survey at Subaru.

[Speaker 3]
Yuta Kawamura, M1, SOKENDAI (Supervisor;Hiroshi Matsuo)
[Title]
Evaluation of 0.8K refrigerator for the development of photon counting detector

[Speaker 1]
Junya Sakurai, D3 SOKENDAI (Supervisor;Satoshi Miyazaki)
[Title]
Weak Lensing Analysis of Supercluster CL0016 using Hyper Suprime-Cam

[Speaker 2]
Haruka Baba, D2 SOKENDAI (Supervisor;Wako Aoki)
[Title]
Searching for brown dwarfs and planetary mass objects in the Taurus molecular cloud using HSC

[Speaker 1]
Hiroshi Kobayashi, D3, SOKENDAI (Supervisor: Ken Ohsuga)
[Title]
Radiation-MHD Simulation of Clumpy Outflow from Supercritical Accretion Flow: Test of 3D Calculation.

[Speaker 2]
Prashant Pathak, D2, SOKENDAI (Supervisor: Hideki Takami)
[Title]
A High Precision Technique To Correct For Residual Atmospheric Dispersion In High-contrast Imaging Systems

[Speaker 1]
Shogo Ishikawa, D3, SOKENDAI (Supervisor: Nobunari Kashikawa)

[Speaker 2]　
Masahiro Onitsuka, D3, SOKENDAI(supervisor: Tomonori Usuda)
[Title]
Multi-color simultaneous observations of the transiting hot Jupiter candidate

[Speaker3]
Kotomi Taniguchi, D2, SOKENDAI (Supervisor; Masao Saito)
[Title]
13C isotopic fractionation of HC3N in star forming regions
[Abstract]
I will talk about observations with the Nobeyama 45-m telescope during this observational season. We investigate 13C isotopic fractionation of HC3N and discuss its main formation mechanisms in L1527 and G28.28-0.36.

[Speaker 1]
Tomonori Michiyama, D1, SOKENDAI (Supervisor;Daisuke Iono)
[Title]
Chemical Composition in a Merging Galaxy NGC3256 ~ALMA new results~
[Abstract]
NGC3256 is late stage merging galaxy and SB/AGN activity is considered to strongly impact the chemical and physical properties of ISM. Chemical properties as traced in molecular gas composition contain significant information that will tell us the current state and duration of the SB/AGN activities, and how that is affected by the ongoing tidal interaction. The spectrum of our previous LMT line survey seems to be like SB galaxies not AGN-host galaxies, however it reflects mean value of double nuclei. High resolution and sensitivity imaging of numerous molecules with ALMA is strong tool to create accurate picture of NGC3256. We introduce the newest results of ALMA cycle3 observation.

[Speaker 2]
Misaki Ando, M2, SOKENDAI (Supervisor;Daisuke Iono)
[Title]
Physical Conditions of Molecular Gas in Merging Starburst Galaxy NGC 1614