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Table 1

Background-subtracted average surface brightness values [in units of MJy/sr] as derived from the Herschel/PACS and WISE data (this paper) and from the AKARI as listed by Ueta et al. (2008) for the arc and bar-like structure near Betelgeuse.

ARC BAR

70 μm 17.9  ±  2.69 16.3  ±  2.45
PACS 100 μm 9.7  ±  1.46 9.8  ±  1.47
160 μm 4.1  ±  0.61 5.3  ±  0.80

65 μm 5–25  ~10
90 μm 5–20  ~10
AKARI 140 μm 5–10  ~15
160 μm 10–15  ~20

12 μm  ≤ 0.74
WISE 22 μm 1.53  ±  0.31

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