The LAMOST low resolution spectrograph stability performance

YongHui Hou; Lei Wang; Zhongwen Hu; Jianing Wang; Zhen Tang; Mingda Jiang; Yongtian Zhu

doi:10.1117/12.925640

24 September 2012 The LAMOST low resolution spectrograph stability performance

YongHui Hou, Lei Wang, Zhongwen Hu, Jianing Wang, Zhen Tang, Mingda Jiang, Yongtian Zhu

Proceedings Volume 8446, Ground-based and Airborne Instrumentation for Astronomy IV; 844660 (2012) https://doi.org/10.1117/12.925640
Event: SPIE Astronomical Telescopes + Instrumentation, 2012, Amsterdam, Netherlands

Abstract

One of the Large Sky Area Multi-Object Spectroscopic Telescope (LAMOST) scientific requirements require the ability of the low resolution spectrograph(LRS) to measure velocities to a accuracy of 4km/s over the entire 5 degree field in 2 hours objects observation. This requirement results in the specification of image movement less than 0.6μm/hours (0.05pixl/hours corresponding to the science detector).There are 16 spectrographs for LAMOST telescope, so we expect the design aspects of the instrument directed towards achieving the stability goal. In this paper we present the last design aspects of the instrument which enable meeting the 4km/s requirement, and the recent test results of the LRS’s Stability Performance. The test results show that the stability performance of LAMOST-LRS can meet the the stability goal, the image shift along the direction of dispersion is not influenced by the external factors, and the image shift along vertical dispersion direction meet the technical requirements when the environmental temperature of the spectrograph room is in control.

Citation Download Citation

YongHui Hou, Lei Wang, Zhongwen Hu, Jianing Wang, Zhen Tang, Mingda Jiang, and Yongtian Zhu "The LAMOST low resolution spectrograph stability performance", Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 844660 (24 September 2012); https://doi.org/10.1117/12.925640

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available