2016MNRAS.461..507H

Query : 2016MNRAS.461..507H

2016MNRAS.461..507H - Mon. Not. R. Astron. Soc., 461, 507-518 (2016/September-1)

First performance of the GeMS + GMOS system - 1. Imaging.

HIBON P., GARREL V., NEICHEL B., PROUT B., RIGAUT F., KONING A., CARRASCO E.R., GIMENO G. and PESSEV P.

Abstract (from CDS):

During the commissioning of the Gemini MCAO System (GeMS), we had the opportunity to obtain data with the Gemini Multi-Object Spectrograph (GMOS), the most utilized instrument at Gemini South Observatory, in 2012 March and May. Several globular clusters were observed in imaging mode that allowed us to study the performance of this new and untested combination. GMOS is a visible instrument, hence pushing MCAO towards the visible. We report here on the results with the GMOS instruments, derive photometric performance in term of full width at half-maximum (FWHM) and throughput. In most of the cases, we obtained an improvement factor of at least 2 against the natural seeing. This result also depends on the natural guide star constellation selected for the observations and we then study the impact of the guide star selection on the FWHM performance. We also derive a first astrometric analysis showing that the GeMS+GMOS system provide an absolute astrometric precision better than 8 mas and a relative astrometric precision lower than 50 mas.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): instrumentation: adaptive optics - methods: observational - astrometry - globular clusters: general - globular clusters: general

Simbad objects: 15

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Number of rows : 15
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 M 42 HII 05 35 16.8 -05 23 15           ~ 4411 0
2 NGC 2447 OpC 07 44 34.6 -23 51 22           ~ 170 1
3 NGC 2849 OpC 09 19 24.9 -40 31 17     12.5     ~ 34 0
4 NGC 3201 GlC 10 17 36.82 -46 24 44.9           ~ 1001 0
5 NGC 3244 EmG 10 25 28.8159211464 -39 49 39.254531520 12.89 13.09 12.28 11.83 12.6 ~ 60 1
6 M 68 GlC 12 39 27.98 -26 44 38.6     7.96     ~ 1069 0
7 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
8 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
9 IC 4296 rG 13 36 39.03253319 -33 57 57.0730368   11.52 12.99 10.00 10.79 ~ 520 2
10 NGC 5286 GlC 13 46 26.81 -51 22 27.3           ~ 485 0
11 NGC 5408 EmG 14 03 20.907 -41 22 39.75   12.59   11.96 12.2 ~ 368 3
12 NAME Circinus Galaxy Sy2 14 13 09.906 -65 20 20.47   10.89 9.84 10.6 10.0 ~ 1331 1
13 NGC 6369 PN 17 29 20.4566510904 -23 45 34.771819248   16.6 12.00     [WC4] 335 0
14 NGC 6496 GlC 17 59 03.68 -44 15 57.4   9.96       ~ 251 0
15 NAME SDG G 18 55 19.0 -30 32 43   4.5 3.6     ~ 2438 2

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