We present a new integral-field spectroscopic dataset of the central part of the Orion Nebula ( M 42 ) , observed with the MUSE instrument at the ESO VLT .
We reduced the data with the public MUSE pipeline .
The output products are two FITS cubes with a spatial size of \sim 5 \aas@@fstack { \prime } 9 \times 4 \aas@@fstack { \prime } 9 ( corresponding to \sim 0.76 \times 0.63 pc ^ { 2 } ) and a contiguous wavelength coverage of 4595 \dots 9366 Å , spatially sampled at 0 \aas@@fstack { \prime \prime } 2 .
We provide two versions with a sampling of 1.25 Å and 0.85 Å in dispersion direction .
Together with variance cubes these files have a size of 75 and 110 GiB on disk .
They represent one of the largest integral field mosaics to date in terms of information content .
We make them available for use in the community .
To validate this dataset , we compare world coordinates , reconstructed magnitudes , velocities , and absolute and relative emission line fluxes to the literature and find excellent agreement .
We derive a two-dimensional map of extinction and present de-reddened flux maps of several individual emission lines and of diagnostic line ratios .
We estimate physical properties of the Orion Nebula , using the emission line ratios [ N ii ] and [ S iii ] ( for the electron temperature T _ { \mathrm { e } } ) and [ S ii ] and [ Cl iii ] ( for the electron density N _ { \mathrm { e } } ) , and show two-dimensional images of the velocity measured from several bright emission lines .