Home > Archives > 2016-10

2016-10

Interpreting the double-ridge structure in high-frequency time-distance diagrams / Close loop correction of residual atmospheric dispersion in high-contrast imaging systems

[Speaker1]
Nagaaki Kambara, M2 , Sokendai, Mitaka (supervisor : Takashi Sekii, Tetsuya Watanabe, Masahito Kubo)

[Title]
Interpreting the double-ridge structure in high-frequency time-distance diagrams

[Speaker2]
Prashant Pathak, D3, Sokendai, Hawaii (supervisor : Prof. Hideki Takami)

[Title]
Close loop correction of residual atmospheric dispersion in high-contrast imaging systems

[Abstract]
For direct imaging of habitable exoplanets from ground-based telescopes, it is crucial to correct for all the wavefront errors. One such error comes atmospheric refraction, in this talk, I will talk about why it is important to correct for refraction to the highest degree and how it can be achieved.

Direct imaging of intermediate mass giants with RV trends III / Chemical Abundance Analysis in Draco Dwarf Spheroidal Galaxy

[Speaker1]
Tsuguru Ryu, SOKENDAI, D2 (Supervisor; Motohide Tamura)
[Title]
Direct imaging of intermediate mass giants with RV trends III

[Speaker2]
Tadafumi Matsuno
[Title]
Chemical Abundance Analysis in Draco Dwarf Spheroidal Galaxy

Control Strategy of Vibration Isolation System in KAGRA / Chemical composition in merging galaxy NGC3256

[Speaker1]
Koki Okutomi ,SOKENDAI, D2 (Supervisor; Yoichi Aso)
[Title]
Control Strategy of Vibration Isolation System in KAGRA
[Abstract]
Laser interferometric gravitational-wave detector KAGRA has vibration isolation systems called SAS which attenuate fluctuation of mirrors from seismic disturbance. The largest type of SAS is a multi-stage pendulum consists of 9 suspended stages. We need to control the mirror with the complicated system to operate the laser interferometer. In this talk, I present a strategy how to control the SAS and measurements for a sensor/actuator unit related to the control strategy.

[Speaker2]
Tomonari Michiyama ,SOKENDAI, D1 (Supervisor; Daisuke Iono)
[Title]
Chemical composition in merging galaxy NGC3256

Home > Archives > 2016-10

Search
Feeds

Return to page top