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YITP Workshop on "Quasi-Periodic Oscillations and
Time Variabilities of Accretion Flows"
Conference Room K206, Yukawa Institute for Theoretical Physics,
Kyoto University, Kyoto, Japan, November 20 - 22, 2007
http://www.astro.phys.s.chiba-u.ac.jp/qpo2007/
Hosted by Yukawa Institute for Theoretical Physics (YITP, Japan)
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We are pleased to send the first circular of the workshop on
"Quasi-Periodic Oscillations and Time Variabilities of Accretion Flows"
to be held at Yukawa Institute for Theoretical Physics (YITP),
Kyoto University. We would be very much delighted if you could
join us and make contribution.
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Scientific Objectives
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Time variabilities of accretion powered sources such as black
hole candidates give us clues to study physical processes ongoing
near the central, gravitating object. Quasi-periodic oscillations
(QPOs) sometimes found in these sources are particularly important
because they enable us to study these objects by seismological
methods.
In black hole candidates, high frequency QPOs sometimes show twin
peaks whose frequency ratio is 3:2. These QPOs may be related to
the oscillations of black hole accretion disks. By understanding
the physical mechanism which excite such QPOs, we will be able to
measure the mass and spin of the black hole.
In this workshop, we will bring together scientists who are
interested in time variabilities of accretion powered sources and
interchange ideas from observational, theoretical and/or numerical
viewpoints. We are going to discuss the physical mechanism of QPOs
and other time variabilities such as 1/f noise-like X-ray
fluctuations, X-ray/IR/radio flares, hard-to-soft state transitions,
and the relation between QPOs and state transitions.
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Important dates
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September 5 2007 - first circular
September 30 2007 - deadline for registration
- deadline for abstract submission
- deadline for financial support request
October 15 2007 - second circular
November 20 2007 - meeting opening (start at 1:00pm)
November 22 2007 - meeting closing (close at 4:00pm)
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Workshop Plan
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We focus on the following topics. We will have 4-6 key talks on
each topic and call for contributed talks.
(1) Observations of time variabilities of accretion powered sources
(2) Theoretical models of QPOs, state transitions, and time
variabilities
(3) Numerical simulations of time variabilities of accretion disks
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Key Speakers
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Observations
TBD : Observations of QPOs
Y. Terashima (Ehime Univ.): Time variabilities of AGNs
H. Negoro (Nihon Univ.): Time variabilities of BHCs
M. Miyoshi (NAOJ): Observations at millimeter wavelengths
Theoretical Models
M. Abramowicz (Univ. Goteborg): QPO models
W. Kluzniak (Zielona Gora Univ.): Resonance model of QPOs
S. Kato (Kyoto Univ.): Disk oscillation model of QPOs
G. Torok (Silesian Univ.): Models of high frequency QPOs
M. Bursa (Institute of Astronomy, Prague, Czech):
Relativistic light curves
R. Takahashi (NAOJ): Relativistic radiative transfer
Numerical Simulations
Y. Kato (Tsukuba Univ.): MHD simulations of QPOs
M. Machida (NAOJ): MHD simulations including radiative cooling
S. Hirose (Earth Simulator Center): 3D radiation MHD
K. Ohsuga (RIKEN): Simulations of slim disks
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Registration and Accommodation
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Those who wish to attend the meeting should register via the
web-site; http://www.astro.phys.s.chiba-u.ac.jp/qpo2007/
In registration page, please click "register" at the bottom line.
There is no registration fee.
Note that we will have no poster sessions.
YITP accommodation (Kitashirakawa guest House) is already full
during the period of the workshop. Please check "No" for request
for arrangement of your accommodation by YITP.
We have booked 10 single rooms at Shiran Kaikan for participants
attending from outside Japan from November 19 (evening) to
November 23 (morning), 2007. The cost is about 6800yen/night.
Breakfast is not included. If you want to stay at Shiran Kaikan,
please write it in the Comments column.
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Call for Oral Papers
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Those who wish to present oral papers should submit a short
abstract, as well as a title and author names, via web-site at
the time of web-registration. Only text files are accepted for
abstracts. All the abstracts will be displayed on the web-site.
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Financial support
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Limited amount of travel support will be available. One can apply
for this support via the conference web-site when she/he registers
but no later than September 30, 2007. Selection will be made if
there are too many requests.
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VISA
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Depending on your nationality, you may be required to obtain a
VISA to enter Japan. Please check by yourself at
http://www.mofa.go.jp/j_info/visit/visa/index.html
if this applies to you or not. If a VISA is required, please make
contact with the nearest Japanese Embassy/consulate general as
soon as possible and also inform us required documents by e-mail:
qpo2007_AT_astro.s.chiba-u.ac.jp (replace _AT_ with @)
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Proceedings
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We do not plan to publish proceedings, but instead we will post
presentation files on the web after the meeting.
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Organizing committee
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Ryoji Matsumoto (Chiba Univ., Chair),
Shoji Kato (Kyoto Univ. Emeritus),
Shin Mineshige (Kyoto Univ.), Jun Fukue (Osaka Kyoiku Univ.)
Mami Machida (NAOJ), Hiroshi Oda (Chiba Univ.)
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Contact address
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If you have questions, please send email to:
qpo2007_AT_astro.s.chiba-u.ac.jp (replace _AT_ with @)
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