Briefing on NAOC

Presentation on Sino-American Bilateral Workshop
<strong>Briefing</strong> on NAOC

Outline
Structure of NAOC
Progress of Key Projects
- LAMOST - FAST - LUREX
Some New Projects
- 21CMA - WSO - Site Survey
Contribution to International Community
Collaboration with the U.S.

Structure of NAOC
Subordinate Units
– Headquarter (Beijing)
– Yunnan Observatory
– Nanjing Institute of Astronomical
Optics and Technology
– Urumqi Observatory
– Changchun Observatory

Structure of NAOC
Observatories, Coordinated Academically by NAOC
– Purple Mountain Observatory
– Shanghai Astronomical Observatory
Research centers jointly administered by the NAOC and
Universities
– Beijing Astrophysics Center with Peking Univ.
– East China Astronomy and Astrophysics Center with
Nanjing Univ.
– Astro-geodynamics Research Center with Tongji Univ.
– Center for Astrophysics with Univ. of Science &
Technology of China

Structure of NAOC
30 Research Groups
– 7 galactic astrophysics
– 7 stellar astrophysics
– 7 solar & solar system
– 9 applied astronomy

Structure of NAOC
Six observing bases
Xinglong; Huairou; Nanshan; Sheshan;
Delingha; Southern base
Seven laboratories
Optic; Space; mm & sub-mm radio;
CCD; VLBI; FAST; LAMOST

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2005.08.31 7

Structure of NAOC (HQ)
Director General
1
Associate
Director
Academic
Commission
3
31
Administration
Department
27
Research
Groups
92
Laboratories
143
Stations
and
Facilities
67
Graduate
Students
Master 92
Doctor 114
Service
Personnel
5

Progress of Key Projects
LAMOST (Large sky Area Multi-Object fiber
Spectroscopic Telescope )
FAST (Five-hundred-meter Aperture Spherical
Telescope )
LUREX (Lunar Resource Explorer : Chang’E)

Status and Progress of LAMOST

Status and Progress of LAMOST

Spectra taken by a
small system

Feb. 2008
Oct. 2007

Status and Progress of FAST
Unique Karst depression as the site
Active main reflector
Cable - parallel robot feed support

Optical geometry and Specs
S 2
S 1
ReflectorR300m, D500m,
opening angle:θ110-120°
Illuminated aperture: Deff=300m
Sky coveragemaximum zenith
angle: 40°
Working frequencies
70MHz-3GHz, up to C-, X-
band
Sensitivity 2000 /K
Resolution 2.9’
Multibeam 19
Pointing Accuracy8″
O

Miyun Model
HI detection on Sep. 6 2006
Official Approval on
FAST Funding Proposal on
Jul. 10 2007 by NDRC

Status and Progress of LUREX
Chang’E Project successfully
launched to survey the moon
in 2007.
NAOC is the leading science
programs of the project.
The science ground segment
is built and operating at NAOC

Status and Progress of LUREX

Data downlink stations and data center
A 50-meter and a 40-meter antennas have
been built by NAOC for data downlinks and
VLBI orbit measurement.
Data center is located at NAOC headquarter.

Some New Projects
21cm survey (Detection of first light after Big
Bang)
WSO/UV (World Space Observatory-
Ultraviolet)
Astronomical Site Survey in Western China

Status and Progress of 21CMA
June 2006: construction completed
10287 antennas @ 4x6 km arms
Physical area50544m 2 Effective area: 25000 m 2
Total cost3M USD

S
N
W
1 pod=127 antennas
control room
21CMA Layout
81 pods along two perpendicular arms (6km+4km)
E
Baselines: 3240 Freq channels: 4096

Status and Program of 21CMA
Frequency coverage:
50 - 200 MHz
Redshifted 21cm Line:
λ = 21cm (1 + z)
z λ(cm) ν(MHz)
6 147 200
10 246 130
20 441 68

World Space Observatory - Ultraviolet
Wavelength rage:
Ultraviolet 1100—3500Å
Primary mirror
diameter1.7m
Pointing accuracy:
0.05~0.1”
Lead by Russia, participated
by China, Germany, Italy,
Spain, etc.
Launch: 2010 - 2012
Operational Life5years
(10 goals)
Cost 300 M Euro
Operation mode:
international space
observatory

WSO-UV’s Three Science Instruments
Field Camera Unit
(Italy)
High Resolution Double
Echelle Spectrograph
(Germany)
Long Slit Spectrograph
(China)
Evgeny Skripunov
Lavochkin
Association
skrip@laspace.ru

Long Slit Spectrograph Contributed by
China (lead by NAOC)
Parameter
Wavelength
coverage
Width of
slit
Length of
slit
Spectral
resolution
Spatial
resolution
sensitivity
specification
102~320 nm
two-channel design
1″ ≈ 82 µm
75″ ≈ 6.2 mm
1500~2500
0.5”~1”
Optimized to observe
faint sources
MCP
detectors
Holographic
Gratings
NUV
Channel
Entrant Slits
FUV
Channel

2003-present, for the next generation ELT, and for mid-sized
telescopes of the Eastern-Asian astronomical observatories.
Survey Area: Tibet, Xinjiang, Qinghai, Yunnan
Karasu: N38 10.489 E74 48.145, 4500m
Oma: N32 32.665 E83 03.367, 5000m

Contribution to International Community
Astronomical journal Chinese Journal of Astronomy
and Astrophysics (Research in Astronomy and
Astrophysics in 2009) has become a SCI journal.
The 28 th General Assembly of the International
Astronomical Union (IAU/GA) was awarded to China
for the first time, and will be held in 2012. NAOC will
be in charge of organizing. This historical milestone
would undoubtedly promote the international status
and influences of Chinese astronomy, and would also
boost the development of astronomy and astrophysics.

Collaboration with the U.S.
Frequent international exchanges between
astronomical institutions and individuals in the past
Collaborations in researches, including radio
astronomy, data mining and processing, etc.
FAST, SDSS, ALMA and so on.
Further our collaborations in the future

gzhao@bao.ac.cn