YITP WORKSHOP ON
Quasi-Periodic Oscillations and Time Variabilities of Accretion Flows

>> 2nd circular
1st circular
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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
-----------------------

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
----------------
 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
--------------------------------
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
----------------------
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
------------------
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
----
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
-----------
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
----------------------
 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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