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Table 2

Parameters used in the sample analysis

PDS f Sc cloud d edge A V f Av  ⟨ F ⟩  f F100 Notes
o mag Jy
018 0.90 L1647 1.79 1.3  ±  0.3 0.7 20  ±  2 0.7 a, b
027 0.96 L1659 5.60 1.2  ±  0.2 0.7 20  ±  3 0.7 a, b, c, f, g
037 0.93 FS134  −0.15 2.8  ±  0.4 0.4 156  ±  41  <0.5 e, g
067 0.97 FS251 1.39 1.4  ±  0.3 0.7 300  ±  101  <0.1 a, f
141 0.97 FS221 0.09 3.8  ±  0.8 0 14  ±  2 0.9
168 0.75 L1536  −0.10 0.9  ±  0.6 0 14  ±  1 0.4
174 0.97 L1616 0.07 1.2  ±  0.2 0.6 6  ±  4 1.0 b, c, d, e, g
193 0.70 L1641  −1.02 2.6  ±  0.6 0.4 37  ±  16 0.7
198 0.85 L1641  −0.76 2.6  ±  0.6 0.3 37  ±  16  <0.6
204 0.95 L1570 5.91 0.9  ±  0.4 0.7 17  ±  1 0.9 a, b, c, e, g
207 0.89 L1557  −0.28 0.3  ±  0.5 0.9 16  ±  2 0.8 b, g
216 0.92 L1600 1.96 0.8  ±  0.2 0.8 18  ±  2  <0.7 a, b, c, d, g
257 0.89 L1665 3.70 0.6  ±  0.1 0.8 21  ±  2 0.4 a
290 0.94 FS114 1.27 1.6  ±  0.2 0.2 37  ±  9 0.5 a, f, g
353 0.89 FS220 3.61 1.3  ±  0.2 0.6 80  ±  26  <0.7 a, b, c, d, g
371 0.79 FS271 18.18 0.1  ±  0.1 1.0 5  ±  0  <0.2 a
394 0.86 FS288 2.46 0.7  ±  0.2 0.5 49  ±  5  <0.3 a, e, g
406 0.82 FS348  −0.20 1.2  ±  0.5 0 35  ±  5 0.2 d, g
431 0.94 FS372 1.42 1.6  ±  0.4 0 439  ±  155  <0.8 a, e, f, g
465 0.92 L273 0.58 0.6  ±  0.2 0.8 30  ±  3 0.7 a, b, c, d, e, f, g
477 0.87 L318 0.10 2.6  ±  0.4 0.4 120  ±  14 0.2 d
518 0.91 L511 0.09 5.4  ±  1.0 0.2 105  ±  11 0.9 d
520 0.84 L571 0.49 5.5  ±  0.8 0 79  ±  26  <0.1
530 0.82 L637 0 1.0  ±  0.3 0.3 38  ±  5 0.3 f
543 0.94 L621  −3.01 4.6  ±  0.6 0.2 164  ±  47 0.2 e, f, g
551 0.96 L628 0.30 6.3  ±  0.7 0 196  ±  43  <0.5 f, g
581 0.94 L813 1.28 0  ±  0.1 1.0 21  ±  3 0.8 a, b, c, d, e, f, g

Notes. Column description: (1) PDS name; (2) fraction of circumstellar luminosity; (3, 4) nearest cloud and respective distance to the edge; (5) visual extinction from Dobashi et al. (2005); (6) “net” visual extinction; (7, 8) background mean flux and fraction of source emission at 100 μm. (a) dedge > 0.5°; (b) fAv > 0.5 and fF100 > 0.5; (c) high values of WHα, fAv and fF100; (d) U-B excess; (e)  [12] − [25]  > 1 and F12 > 2 Jy; near-IR colors typical of post-AGB: (f) J − H and H − K, (g) J − K and K −  [25] .

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