MUSE crowded field 3D spectroscopy of over 12 000 stars in the globular cluster NGC 6397 - I. The first comprehensive HRD of a globular cluster

@article{Husser2016MUSECF,
  title={MUSE crowded field 3D spectroscopy of over 12 000 stars in the globular cluster NGC 6397 - I. The first comprehensive HRD of a globular cluster},
  author={T.-O. Husser and Sebastian Kamann and Stefan Dreizler and Martin Wendt and Nina Wulff and Roland Bacon and Lutz Wisotzki and Jarle Brinchmann and Peter M. Weilbacher and Martin M. Roth and Ana Monreal-Ibero},
  journal={Astronomy and Astrophysics},
  year={2016},
  volume={588}
}
Aims. We demonstrate the high multiplex advantage of crowded field 3D spectroscopy with the new integral field spectrograph MUSE by means of a spectroscopic analysis of more than 12 000 individual stars in the globular cluster NGC 6397. Methods. The stars are deblended with a point spread function fitting technique, using a photometric reference catalogue from HST as prior, including relative positions and brightnesses. This catalogue is also used for a first analysis of the extracted spectra… 

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