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Table 1

Young nearby star-forming regions included in the study of protoplanetary disk dependence on stellar mass.

Name Age Distance Membership and SpT Spitzer photometry Number of sources
(Myr) (pc)

25 Orionis 7–10 330 (1) (1) 46
Cha I 2 160–165 (2) (3) (4) (3) (4) 212
Cha II 2 ± 2 178 ± 18 (5) (31) 47
CrA 1–3 138 ± 16 (6) (7) (8) (9) (32) 35
λ Orionis 4 400 ± 40 (10) (33) 114
Lupus 1–1.5 140–200 (11) (12) (13) (14) (31) 217
NGC 1333 1 235 ± 18 (15) (34) 74
σ Orionis 2–3 440 ± 30 (16) (17) (18) (19) (20) (21) (22) (35) 104
Serpens 2 415 ± 15 (15) (23) (31) 142
Taurus 1–2 140 (24) (25) (26) (27) (26) (27) 265
Upper Sco 11 ± 2 140 (28) (29) (30) (29) 405

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