New developments in integral field spectroscopy

Anthony Horton*, Joss Bland-Hawthorn, Simon Ellis

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review


The development of wide field adaptive optics (AO) capabilities greatly increases the potential information content (spatial resolution elements × spectral resolution elements) per telescope pointing. This is illustrated in Table 1, which lists the wide field AO systems for the VLT. The multi-conjugate adaptive optics (MCAO) demonstrator MAD has already proven that a 1′ corrected field of view (FoV) with point spread function (PSF) full width half-maximum (FWHM) of 0.1″ is possible [E. Marchetti, R. Brast et al. in ESO Messenger 129, 8 (2007)]. This corresponds to a number of spatial resolution elements, N sp=4×104. The two ground-layer adaptive optics (GLAO) systems currently under development promise comparable numbers. Comparing these figures with the seeing limited case for the maximum VLT FoV and good seeing we see that in terms of the number of spatial resolution elements the wide field AO foci of the VLT will be just as ‘wide field’ as any seeing limited instrument.
Original languageEnglish
Title of host publicationScience with the VLT in the ELT Era
EditorsAlan Moorwood
PublisherSpringer, Springer Nature
Number of pages5
ISBN (Electronic)9781402091902
ISBN (Print)9781402091896
Publication statusPublished - 1 Jan 2009
Externally publishedYes
EventWorkshop on Science with the VLT in the ELT Era, 2007 - Garching, Germany
Duration: 8 Oct 200712 Oct 2007

Publication series

NameAstrophysics and Space Science Proceedings
ISSN (Print)1570-6591


ConferenceWorkshop on Science with the VLT in the ELT Era, 2007


Dive into the research topics of 'New developments in integral field spectroscopy'. Together they form a unique fingerprint.

Cite this