LGS adaptive optics and integral field spectroscopy

Katharine J. Jones

doi:10.1117/12.824498

17 September 2009 LGS adaptive optics and integral field spectroscopy

Katharine J. Jones

Proceedings Volume 7439, Astronomical and Space Optical Systems; 74390L (2009) https://doi.org/10.1117/12.824498
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

Ground based astronomical telescopes have limited resolutions due to wavefront distortions caused by constantly changing atmospheric turbulence. Resolution can be improved using adaptive optics. Creating an artificial guidestar in the mesospheric sodium layer using a laser has been a major quest in the astronomical community. The sodium guidestar lasers of five major observatories are compared: AFRL/SOR (solid state, resonant sum-frequence generator), Palomar/Caltech (solid state sum-frequency mode-locked), Lick/LLNL (tunable dye), Keck (tunable dye), and VLT (tunable dye). Increased sky coverage provided by laser guide stars has made possible integral field spectrographs such as OSIRIS and Keck and SINFONI at VLT to study high red shift galaxies. The first results obtained with OSIRIS was diffraction-limitied spectroscopic observations of an infrared flare associated with the radio source Sgr A*. Increased resolution will be defined and the impact on integral field spectroscopy projected.

Citation Download Citation

Katharine J. Jones "LGS adaptive optics and integral field spectroscopy", Proc. SPIE 7439, Astronomical and Space Optical Systems, 74390L (17 September 2009); https://doi.org/10.1117/12.824498

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