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					  STELLAR OBSERVATIONS
  NETWORK GROUP (SONG)

Chinese SONG team
Speaker: Jianning Fu (Beijing Normal University)

2010.10.16
SONG PROJECT
 To install 8 1-m telescopes at 8 sites around the
  equator, to compose the SONG network.
 To make High-precision continuous radial-velocity
  observations for individual stars, to study the
  internal structures of the target stars in detail with
  asteroseismological technique.
 To make high time-resolution high-precision
  photometric observations for the stars in the bulge
  of the Galaxy, to search for earth-like exoplanets.
 Initialized by Danish astronomers.
Distribution of the SONG telescopes
Dome of SONG telescope
               1-meter telescope




Spectrograph
Primary object of SONG:        1. Asteroseismology:
Long-duration high-duty-cycle high-precision radial velocity
curves
2. Searching for exoplanets with the microlensing effect:
High duty-cycle moderate duration high-precision photometry
      for crowded star regions
Chinese SONG plan:

    1. By setting up a SONG node in China,
    to make international collaboration and
    competition in the front edge field of stellar
    physics.

    2. To build up Mini-SONG, the first Chinese
    global observation network located at the best
    sites of the world.
SCHEDULE OF CHINESE SONG PLAN
 Started in May of 2009;
 Agreement of collaboration between China and
  Denmark signed in September of 2009;
 Agreement of collaboration among Denmark,
  China, and the USA for the network of northern
  hemisphere signed in December of 2009;
 The third SONG workshop held in Beijing in March
  of 2010;
 Mini-SONG project proposed2 in March of 2010.
PROGRESS

 Site investigation started in January of 2010:
      Site test in Delingha;
      Data being collected for the other candidate
            sites;
 Composition of teams and schedule decided in
  January of 2010.
 WEATHER RECORD IN DELINGHA
30
          totally clear
25
          Partially clear
20

15

10

 5

 0
     Jua. Feb. Mar. Apr.     May   Jun. Jul. Aug. Sep. Oct. Nov. Dec.


     Monthly distribution of the observable nights in Delingha
A customized node of
SONG:

A 1-meter universal
telescope for high-precision
photometry;

To make time-series
observations for variable
objects and lucky-imaging;

A candidate site: the South-
American station of NAOC
Budget:

1. Design:3 M
2. Telescopes: 27 M
3. Site: 5 M
4. Data: 3M
5. Mini-SONG: 10 M
6. Others: 2 M

In total:50 M
CHINESE SONG TEAM

 Institutions:
  National Astronomical Observatories of
   China
  Yunnan Astronomical Observatory

  Beijing Normal University
Thanks for your
  attention!

				
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posted:2/26/2012
language:English
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