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Title: | A MUSE map of the central Orion Nebula (M 42) |
Authors: | Weilbacher, Peter M. Monreal-Ibero, Ana Kollatschny, Wolfram Ginsburg, Adam McLeod, Anna F. Kamann, Sebastian Sandin, Christer Palsa, Ralf Wisotzki, Lutz Bacon, Roland Selman, Fernando Brinchmann, Jarle Caruana, Joseph Kelz, Andreas Martinsson, Thomas Pécontal-Rousset, Arlette Richard, Johan Wendt, Martin |
Keywords: | Stars -- Clusters Stars -- Spectra Spectrophotometer Galaxies Galaxies -- Evolution Galaxies -- Observations Red shift -- Observations Galaxies -- Formation |
Issue Date: | 2015 |
Publisher: | EDP Sciences |
Citation: | Weilbacher, P. M., Monreal-Ibero, A., Kollatschny, W., Ginsburg, A., McLeod, A. F., Kamann, S., ... & Wendt, M. (2015). A MUSE map of the central Orion Nebula (M 42). Astronomy & Astrophysics, 582, A114. |
Abstract: | 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 ~5.́9×4.́9 (corresponding to ~0.76 × 0.63 pc2) and a contiguous wavelength coverage of 4595...9366 Å, spatially sampled at 0.́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 are 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 values and find excellent agreement. We derive a 2D 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 Te) and [S II] and [Cl III] (for the electron density Ne), and show 2D images of the velocity measured from several bright emission lines. |
URI: | https://www.um.edu.mt/library/oar/handle/123456789/87656 |
Appears in Collections: | Scholarly Works - FacSciPhy |
Files in This Item:
File | Description | Size | Format | |
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A MUSE map of the central Orion Nebula.pdf Restricted Access | 17.51 MB | Adobe PDF | View/Open Request a copy |
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