scholarly journals ATLAST-9.2m: a large-aperture deployable space telescope

2010 ◽  
Author(s):  
William R. Oegerle ◽  
Lee D. Feinberg ◽  
Lloyd R. Purves ◽  
T. Tupper Hyde ◽  
Harley A. Thronson ◽  
...  
Keyword(s):  
Space Telescope ◽  
Large Aperture

scholarly journals Technology development for the Advanced Technology Large Aperture Space Telescope (ATLAST) as a candidate large UV-Optical-Infrared (LUVOIR) surveyor

2015 ◽  
Author(s):  
Matthew R. Bolcar ◽  
Kunjithapatham Balasubramanian ◽  
Mark Clampin ◽  
Julie Crooke ◽  
Lee Feinberg ◽  
...  
Keyword(s):  
Technology Development ◽  
Advanced Technology ◽  
Space Telescope ◽  
Large Aperture

Ultima free-flying large-aperture space telescope

1997 ◽  
Author(s):  
Jonathan W. Campbell ◽  
Charles R. Taylor
Keyword(s):  
Space Telescope ◽  
Large Aperture

Time-series photometry of a new set of candidate faint spectrophotometric standard DA white dwarfs

2018 ◽  
Vol 14 (A30) ◽  
pp. 493-493
Author(s):  
Annalisa Calamida
Keyword(s):  
Time Series ◽  
Conference Proceedings ◽  
First Principles ◽  
White Dwarfs ◽  
Dynamic Range ◽  
Hubble Space Telescope ◽  
Pure Hydrogen ◽  
Space Telescope ◽  
Large Aperture ◽  
Northern Latitudes

Future facilities and deep surveys such as LSST, JWST and WFIRST, will require a network of standards faint enough to avoid saturation and homogenously distributed in both hemispheres. DA white dwarfs have almost pure hydrogen atmospheres and they are the simplest stars to model. The opacities are known from first principles, and for temperatures higher than ∼ 20,000 K, their photospheres are purely radiative and should be photometrically stable. DA white dwarfs are then the best candidates to establish a network of faint spectrophotometric standards. In order to provide standards in the dynamic range of large aperture (d > 4m) telescopes, we collected Hubble Space Telescope WFC3 images and ground-based spectroscopy for 23 DA white dwarfs fainter than r ∼ 16.5 mag, distributed at equatorial and northern latitudes (see Saha et al. in these conference proceedings).

Current status and development tendency of image stabilization system of large aperture space telescope

2014 ◽  
Vol 7 (5) ◽  
pp. 739-748 ◽  
Author(s):  
曹小涛 CAO Xiao-tao ◽  
孙天宇 SUN Tian-yu ◽  
赵运隆 ZHAO Yun-long ◽  
王栋 WANG Dong ◽  
郭权锋 GUO Quan-feng
Keyword(s):  
Current Status ◽  
Stabilization System ◽  
Image Stabilization ◽  
Space Telescope ◽  
Large Aperture ◽  
Development Tendency

Optical design and testing of a fast large-aperture infrared space telescope

1992 ◽  
Author(s):  
Colin M. Humphries ◽  
Yitzhak Nevo ◽  
Eli Ettedgui-Atad ◽  
John W. Harris
Keyword(s):  
Optical Design ◽  
Space Telescope ◽  
Large Aperture ◽  
Design And Testing

Large aperture space telescope mirror fabrication trades

2008 ◽  
Author(s):  
Stephen E. Kendrick ◽  
H. Philip Stahl
Keyword(s):  
Space Telescope ◽  
Large Aperture

Structural Design of Large Aperture Rectangular Mirror for Space Telescope

2012 ◽  
Vol 256-259 ◽  
pp. 855-858
Author(s):  
Zhi Lai Li
Keyword(s):  
Structural Design ◽  
Optical Axis ◽  
Lightweight Design ◽  
Materials Selection ◽  
Support Design ◽  
Element Analysis ◽  
Space Telescope ◽  
First Order ◽  
Large Aperture ◽  
Flexible Support

Structural design of large aperture mirror is one of the key technologies for space telescope development. To meet the requirements of high stiffness, strength and thermal dimensional stability, some factors such as support scheme, materials selection, lightweight design and flexible support design were taken into account. The three supports location of the mirror was determined according to the modal analytical solution. By adjusting the parameters of flexure hinge, influences of gravity, assembly stress and thermal stress on the mirror were reduced obviously. Finite element analysis (FEA) results indicate that the surface accuracy reach to rms10.2nm and 10.8nm under the gravity along optical axis direction and 5°C uniform temperature rise respectively, the fundamental frequency of the mirror component is 268Hz. Dynamics test shows that the first order natural frequency is 256Hz, which shows an error less than 5% compared to FEA results.

Sign in / Sign up

Export Citation Format

Share Document