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

Bibcode
2016MNRAS.461..507H
DOI
10.1093/mnras/stw715
Hibon, P.; Garrel, Vincent; Neichel, Benoit; Prout, Benjamin; Rigaut, Francois; Koning, Alice; Carrasco, Eleazar R.; Gimeno, German; Pessev, P.
Referencia bibliográfica

Monthly Notices of the Royal Astronomical Society, Volume 461, Issue 1, p.507-518

Fecha de publicación:
9
2016
Revista
Monthly Notices of the Royal Astronomical Society
Número de autores
9
Número de autores del IAC
1
Número de citas
4
Número de citas referidas
3
Descripción
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.
Tipo
Con árbitro
Instrumentación
Métodos
Astrometría

Te puede interesar

  • Con árbitro
    The compact multi-planet system GJ 9827 revisited with ESPRESSO★

    GJ 9827 is a bright, nearby K7V star orbited by two super-Earths and one mini-Neptune on close-in orbits. The system was first discovered using K2 data and then further characterized by other spectroscopic and photometric instruments. Previous literature studies provide several mass measurements for the three planets, however, with large variations

    Passegger, V. M. et al.

    Fecha de publicación:

    4
    2024
    Bibcode
    2024A&A...684A..22P
    Número de citas
    1
  • Con árbitro
    Stellar halo density with LAMOST K and M giants

    Aims: We derive the morphology of the stellar component in the outer halo volume, and search for possible overdensities due to substructures therein. Methods: We made use of some of the data releases of the spectroscopic survey LAMOST DR8-DR9 in tandem with distance determinations for two subsamples, that is, of K-giants and M-giants, respectively

    López-Corredoira, M. et al.

    Fecha de publicación:

    4
    2024
    Bibcode
    2024A&A...684A.135L
    Número de citas
    1
  • Con árbitro
    Euclid preparation. XXXVII. Galaxy colour selections with Euclid and ground photometry for cluster weak-lensing analyses

    Aims: We derived galaxy colour selections from Euclid and ground-based photometry, aiming to accurately define background galaxy samples in cluster weak-lensing analyses. These selections have been implemented in the Euclid data analysis pipelines for galaxy clusters. Methods: Given any set of photometric bands, we developed a method for the

    Euclid Collaboration et al.

    Fecha de publicación:

    4
    2024
    Bibcode
    2024A&A...684A.139E
    Número de citas
    2