Spitzer/IRS high-resolution spectrum of ϵ Eri in λ⁴ F_λ vs. λ format so a Rayleigh–Jeans spectrum is flat. The MIPS 24 and FORCAST 35 μm photometry is shown as squares for reference. The green color shows the CASSIS optimal extraction spectrum. The red and blue color lines are the scaled SH and LH modules, respectively (see Section 4.4 for details). The final combined (joined and smoothed) spectrum is shown as the thick black line. The two dashed lines are the sum of the photosphere and a blackbody emission of 130 K (orange color) and 170 K (brown color). The excess emission is consistent with a blackbody emission of ∼150 ± 20 K.