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Omodaka-Kameno-Imai Laboratory (Observational Astronomy)
Kagiyama-Nakamura Laboratory (Particle Cosmology)
Nishio Laboratory (Satellite Meteorology)
Tateno Laboratory (Physiology) Nedachi Laboratory (Archaeology)
Space Science cource, Department of Physics, Faculty of Science, Kagoshima University
Astrometry of the Milky Way Galaxy
3-D structure and Dynamics
Annual parallaxes of stellar/interletellar masers
Period-luminosity relation of AGB (Asymptotic Giant Branch) stars
Evolution and Lifecycles of stars Mass-accretion and outflows of protostars
Mass-loss from evolved stars
High-energy Astrophysics Accretion disks in dwarf novae
AGN (Active Galactic Nuclei)
Research Fields in the Omodaka-Kameno-Imai Lab.
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Why 3-D mapping and Dynamics? The world’s first atlas of our galaxy
Distribution of stars, gas, and dark matter
How to measure distances to stars?
Annual parallax … triangulation with earth’s orbit as a baseline
Challenging 10-μarcsec precision … to measure whole the milky way
Maser sources as trig points … observations using VERA
AGB variable stars as standard candles … observations using 1-m telescope
Astrometry with the VERA and 1-m telescopes− 3-D map of the Milky Way −
Annual parallax of the maser source S Crt at 350 pc(Tsushima 2007)
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Kirk Woellert/National Science Foundation
Protostars Mass accretion process … How stars weigh?
• Molecular clouds : building block of stars
• Accreting and rotating disks
Outflows … Disposer of angular momenta
Evolved stars Pulsation and mass-loss processes at the end of star
life
Acceleration and collimation in AGB stars and pre-planetary nebulae
Recycle of synthesized elements into interstellar space
Evolution and Lifecycles of Stars
EvolveWater fountain of the evolved star W43A(Imai et al. 2002)
Microjet in the protostar S106 FIR(Furuya et al. 1999)
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Dwarf Novae Mass accretion in close-binary systems
• Mass supply form a companion star
• Accretion disk around a white dwarf
Variability … Outbursts, Superoutbursts, and Superhumps
• Lightcurve measurements to probe disk instability
Active Galactic Nuclei Mass accretion onto supermassive black hole in
the center of galaxies
The most powerful engines in the univers, up to 1041 W
Relativistic jets : v~99% of the speed of light
High-Energy Astrophysics
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Jets of the active galaxy NGC 1052(Kameno et al. 2003)
Light curve of the dwarf nova V844 Her(Oizumi et al. 2007)
1-m Optical / IR telescope (Iriki Observatory)
VERA 20m radio telescope (Iriki Observatory)
6-m radio telescope (Kinkowan Park Observatory)
VSOP-2 : Space VLBI project(to be launched in 2012)
Astronomy Telescopesoperated by us
Very-Long-Baseline Interferometry
1-m Opt/IR Telescope
6-m Radio Telescope
VERA 20-m Radio Telescope
ASTRO-G Satellite for VSOP-2(artist’s impression)
Staffs (4) Professor/Executive : OMODAKA, Toshihiro
Associate Professor : KAMENO, Seiji
Assistant Professor : IMAI, Hiroshi
Research Fellow : NAKAGAWA, Akiharu
Students (26) Graduated (PhD) : 1
Graduated (Master) : 14
Undergraduate : 11
Membership
http://astro.sci.kagoshima-u.ac/ Mail: [email protected]
[email protected] Phone/FAX : 099-285-8960 Address : Omodaka-Kameno-Imai Lab.
Department of Physics, Faculty of ScienceKagoshima University1-21-35 Korimoto, Kagoshima, 890-0065JAPAN
Correspondence