Transcript Space Science cource, Department of Physics, Faculty of

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