Fig. 1
False-color image of the Orion-Eridanus Complex. The blue filter is Hα, tracing ionized gas, taken from the WHAM survey (Haffner et al. 2003), the green filter is the 12 μm map of WISE data (Wright et al. 2010), while the red filter is the Planck 857 GHz map (Planck Collaboration XI 2014). The scale size is 100 pc at the distance of M 42 (414 pc). We labeled some of the ISM gas component present on the aperture.
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