Table 2:

Summary of the UV photometric measurements performed on GALEX FUV and NUV images (see Fig. 1).

	FUV (  Å)		NUV (  Å)
Target position	Flux	Radiation field G	Flux	Radiation field G
	10-7 [W m-2 sr-1]	[Habing units]	10-7 [W m-2 sr-1]	[Habing units]
SQ ridge1
SQ ridge (partial)2
17'' ON beam3

Notes. The flux columns indicate surface brightnesses that are corrected for the sky background.
⁽¹⁾ UV 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.
⁽²⁾ UV 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.
⁽³⁾ UV signal integrated over the 17'' beam at the center of the SQ ridge (yellow circle in Fig. 1).