University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Imaging the dense stellar cluster R136 with VLT-MAD

Campbell, MA, Evans, CJ, Ascenso, J, Longmore, AJ, Kolb, J, Gieles, M and Alves, J (2008) Imaging the dense stellar cluster R136 with VLT-MAD Proceedings of SPIE.

Full text not available from this repository.

Abstract

We evaluate the performance of the Multi-conjugate Adaptive optics Demonstrator (MAD) from H and Ks imaging of 30 Doradus in the Large Magellanic Cloud. Maps of the full-width half maximum (FWHM) of point sources in the H and Ks images are presented, together with maps of the Strehl ratio achieved in the Ks-band observations. Each of the three natural guide stars was at the edge of the MAD field-of-view, and the observations were obtained at relatively large airmass (1.4-1.6). Even so, the Strehl ratio achieved in the second pointing (best-placed compared to the reference stars) ranged from 15% to an impressive 30%. Preliminary photometric calibration of the first pointing indicates 5 sigma sensitivities of Ks=21.75 and H=22.25 (from 22 and 12 min exposures, respectively).

Item Type: Article
Authors :
NameEmailORCID
Campbell, MAUNSPECIFIEDUNSPECIFIED
Evans, CJUNSPECIFIEDUNSPECIFIED
Ascenso, JUNSPECIFIEDUNSPECIFIED
Longmore, AJUNSPECIFIEDUNSPECIFIED
Kolb, JUNSPECIFIEDUNSPECIFIED
Gieles, Mm.gieles@surrey.ac.ukUNSPECIFIED
Alves, JUNSPECIFIEDUNSPECIFIED
Date : 1 July 2008
Identification Number : 10.1117/12.788964
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 12:40
Last Modified : 17 May 2017 15:05
URI: http://epubs.surrey.ac.uk/id/eprint/836256

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800