"Workshop on Galactic archaeology - Asteroseismology"

Date: March 22, 2016
Venue: "Cosmos-Kaikan" conference room, Mitaka campus of NAOJ


Age information of stars is crucial to our understanding of the chemical evolution of the Galaxy. Precise photometric observations from space telescopes enable us to determine mass of stars with asteroseismic scaling relations. The mass information is used to estimate ages of stars with stellar evolution models. Following the success of CoRoT and Kepler missions, the TESS will be launched in 2017 and observe stars with high photometric precision across the whole sky, though its main target is identification of exoplanets. In this workshop, we would like to discuss how the ongoing projects of asteroseismology will improve our understanding of the chemical evolution of the Galaxy.


10:00-10:30 Nobuo Arimoto (Subaru) "Stellar seismology and Galactic archaeology"
10:30-11:00 Norio Narita (NAOJ) "TESS introduction and possible synergy in the fields of asteroseismology and galactic archaeology"
11:00-11:25 Donald Kurtz (Univ. of Central Lancashire) TBA (introduction of asteroseismology)
11:25-11:50 Simon Murphy (University of Sydney) TBA (observational view of asteroseismology and GA)
11:50-12:15 Masao Takata (Univ. of Tokyo) TBA (theoretical view of asteroseismology and GA)
12:15-12:30 Discussion

12:30-13:30 lunch

13:30-14:00 Yoichi Takeda (NAOJ) " Fundamental parameters of red giants in collaboration with asteroseismology and high-dispersion spectroscopy"
14:00-14:30 Takuma Suda (Univ. of Tokyo) "Stellar evolution models and seismology"
14:30-15:00 Alvio Renzini (Padova) "Multiple populations in Globular Clusters"

15:00-15:15 Break

15:15-15:40 Wako Aoki (NAOJ) "GA with optical and infrared spectroscopy"
15:40-16:05 Tadafumi Matsuno (NAOJ) "Unexpected population identified by Kepler and CoRoT"
16:05-16:30 Takuji Tsujimoto (NAOJ) "Galactic chemical evolution and stellar migration"
16:30-17:15 Discussion

[Key questions]

How will asteroseismology, in particular the TESS, improve our understanding of the chemical evolution of the Galaxy?
What can we observe with the TESS?
Can we make a proposal to the TESS?
How well are properties of stars determined?
How accurately can asteroseismology determine stellar ages?
What is the required precision of the age for chemical evolution?
How far can we discuss in the Galaxy?

[Related topics]

Stellar evolution / structure
Stellar age
Star clusters
Evolution of the Galaxy


Tadafumi Matsuno
Wako Aoki
Nobuo Arimoto
Takuji Tsujimoto

Last update: January 6, 2017