Table 1:

Summary of the mid-IR photometric measurements¹ performed on the Spitzer IRAC, IRS PUI m, and MIPS 24, and m images (Fig. 1).

Target region	m	m	m	m5	m6	m	m
SQ ridge2							<6.43
SQ ridge (partial)3							<5.04
17'' beam4							<3.91

Notes. The background-subtracted surface brightnesses are indicated for three different apertures. The last row (17'' circular aperture ) shows the values we adopt throughout this paper, and in particular for the SED presented in Fig. 2.
⁽¹⁾ Fluxes are in units of  W m^-2 sr^-1.
⁽²⁾ Mid-IR signal integrated over the shock structure, defined by the 4 S(3) H₂ rotational line contours (black line in Fig. 1). We exclude the SQ-A star-forming region.
⁽³⁾ Mid-IR signal integrated over the S(3) H₂ rotational line contours by excluding overlaps with the (  MJy sr^-1) m magenta contours (see Fig. 1). This allows us to partially remove the contribution from star-forming regions to the dust emission.
⁽⁴⁾ Mid-IR signal integrated over the 17'' beam in the center of the SQ shock structure (yellow circle in Fig. 1).
⁽⁵⁾ The contribution of the m S(4) H₂ line emission to the m in-band flux is subtracted.
⁽⁶⁾ The contribution of the m S(1) H₂ line emission to the m in-band flux is subtracted.