コロキウム」カテゴリーアーカイブ

Searching for Protoclusters / Probabilistic Selection of z>6 Quasars: Initial Results from the First HSC SSP Data

[Speaker1]
Jun Toshikawa, D3, SOKENDAI, Mitaka(supervisor: Nobunari Kashikawa)
[Title1]
Searching for Protoclusters

[Speaker2]
Masafusa Onoue, M2, SOKENDAI, Mitaka(supervisor: Nobunari Kashikawa)
[Title2]
Probabilistic Selection of z>6 Quasars: Initial Results from the First HSC SSP Data
[Abstract]
I will present my high-z quasar selection method using SED fitting and its application to the first HSC-SSP data.
While it is a well-known problem that the classical quasar selection based on two colors suffers from contaminating sources such as brown dwarfs, photometric redshift with multi-color photometry is a complementary way to effectively isolate high-z quasars. Since photo-z for AGN has been less explored comparing with photo-z for galaxies, I have developed template SED fitting method by myself to construct the largest z>6 quasar sample with the HSC survey.
In this talk, I will show how our selection works on the existing quasar samples such as z>3 quasars in the COSMOS field, and then report the result of the first application to the HSC-SSP data products, which results in five z>6 quasar candidates including one possible highest-redshift (z_photo=7.3) quasar.

Formation Process of Glycine Precursor, CH2NH / Investigating the formation scenario of a massive star forming region IRAS18089-­‐1732 from molecular line spectra / SiO maser observations for the symbiotic star R Aquarii (R Aqr)

[Speaker1]
Taiki Suzuki,D1, SOKENDAI, Mitaka(supervisor: Masatoshi Ohishi)
[Title]
Formation Process of Glycine Precursor, CH2NH

[Speaker2]
Nagisa Shino,D3, SOKENDAI, Mitaka(supervisor: Mareki Honma)
[Title]
Investigating the formation scenario of a massive star forming region IRAS18089-­‐1732 from molecular line spectra

[Speaker3]
Cheulhong Min,D3, SOKENDAI, Mitaka(supervisor: Mareki Honma)
[Title]
SiO maser observations for the symbiotic star R Aquarii (R Aqr)

CLASP, from science requierement to instrumentation

[Speaker]
GIONO Gabriel,D2, SOKENDAI, Mitaka(supervisor: SUEMATSU Yoshinori)
[Title]
CLASP, from science requierement to instrumentation
[Abstract]
Comments from my previous talk suggested to focus more on the science related to CLASP instead of the detailed instrumentation. Hence, I decided to recap the science requirement of the instrument and explain from which scientific interests these requirement are derived. Then, I will show the result of several experiments performed to confirm the instrument requirements. Finally, I’ll conclude by summarizing the current status of CLASP instrument, and introduce the remaining experiments planned to prepare the instrument before its flight in August 2015.