Table 6
Characteristics of starless (or Class 0) sources extracted with Gaussclumps in the 870 μm continuum map of Cha I filtered up to scale 5.
Name | Ngcla | FWHMb | FWHMb | Rab | Npeakc | AVd | Mpeake | Mtote | M50″e | CM f | npeakg | n50″g | cnh |
(″ × ″) | (1000 AU)2 | (1021 cm-2) | (mag) | (M⊙) | (M⊙) | (M⊙) | (%) | (105 cm-3) | (104 cm-3) | ||||
(1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) | (12) | (13) | (14) |
|
|||||||||||||
Cha1-C1 | 4 | 55.1 × 49.3 | 7.6 × 6.7 | 1.1 | 92 | 14 | 0.56 | 3.36 | 1.44 | 39( 1) | 49.5 | 97.7 | 5.1(0.1) |
Cha1-C2 | 6 | 98.2 × 45.9 | 14.4 × 6.1 | 2.4 | 27 | 9 | 0.16 | 1.62 | 0.58 | 28( 1) | 14.4 | 39.4 | 3.7(0.2) |
Cha1-C3 | 8 | 76.1 × 45.9 | 11.0 × 6.1 | 1.8 | 25 | 13 | 0.15 | 1.16 | 0.45 | 33( 2) | 13.3 | 30.7 | 4.3(0.2) |
Cha1-C4 | 9 | 53.4 × 50.4 | 7.3 × 6.9 | 1.1 | 18 | 17 | 0.11 | 0.66 | 0.29 | 38( 3) | 9.8 | 19.9 | 4.9(0.3) |
Cha1-C5 | 11 | 60.3 × 34.5 | 8.5 × 4.1 | 2.1 | 15 | 9 | 0.088 | 0.41 | 0.32 | 28( 2) | 7.9 | 21.4 | 3.7(0.3) |
Cha1-C6 | 13 | 44.3 × 26.0 | 5.8 × 2.2 | 2.6 | 14 | 8 | 0.085 | 0.22 | 0.33 | 26( 2) | 7.6 | 22.3 | 3.4(0.3) |
Cha1-C7 | 14 | 98.3 × 48.1 | 14.4 × 6.5 | 2.2 | 13 | 11 | 0.078 | 0.82 | 0.23 | 34( 3) | 6.9 | 15.4 | 4.5(0.4) |
Cha1-C8 | 15 | 31.0 × 26.1 | 3.4 × 2.3 | 1.5 | 13 | 14 | 0.081 | 0.15 | 0.22 | 36( 3) | 7.2 | 15.2 | 4.8(0.4) |
Cha1-C9 | 16 | 82.6 × 51.8 | 12.0 × 7.1 | 1.7 | 12 | 7 | 0.071 | 0.68 | 0.20 | 36( 4) | 6.3 | 13.4 | 4.7(0.5) |
Cha1-C10 | 21 | 65.9 × 34.3 | 9.4 × 4.0 | 2.3 | 10 | 9 | 0.061 | 0.31 | 0.19 | 33( 4) | 5.5 | 12.8 | 4.3(0.5) |
Cha1-C11 | 23 | 126.7 × 45.8 | 18.7 × 6.1 | 3.1 | 9.7 | 9 | 0.059 | 0.76 | 0.16 | 36( 5) | 5.2 | 11.1 | 4.7(0.6) |
Cha1-C12 | 24 | 56.3 × 32.7 | 7.8 × 3.7 | 2.1 | 9.7 | 10 | 0.059 | 0.24 | 0.14 | 42( 5) | 5.2 | 9.6 | 5.5(0.7) |
Cha1-C13 | 25 | 69.4 × 63.7 | 9.9 × 9.0 | 1.1 | 9.1 | 9 | 0.055 | 0.54 | 0.16 | 35( 5) | 4.9 | 10.5 | 4.7(0.6) |
Cha1-C14 | 26 | 49.8 × 33.6 | 6.8 × 3.9 | 1.7 | 9.5 | 13 | 0.057 | 0.21 | 0.17 | 34( 4) | 5.1 | 11.6 | 4.4(0.6) |
Cha1-C15 | 29 | 102.4 × 48.6 | 15.0 × 6.6 | 2.3 | 7.9 | 8 | 0.048 | 0.53 | 0.13 | 37( 6) | 4.2 | 8.8 | 4.8(0.8) |
Cha1-C16 | 30 | 47.4 × 41.7 | 6.4 × 5.4 | 1.2 | 7.8 | 10 | 0.047 | 0.21 | 0.11 | 44( 7) | 4.2 | 7.3 | 5.8(1.0) |
Cha1-C17 | 32 | 67.3 × 42.4 | 9.6 × 5.5 | 1.7 | 7.7 | 11 | 0.046 | 0.29 | 0.11 | 41( 7) | 4.1 | 7.7 | 5.3(0.9) |
Cha1-C18 | 33 | 102.1 × 47.7 | 15.0 × 6.4 | 2.3 | 7.5 | 13 | 0.045 | 0.49 | 0.12 | 38( 6) | 4.0 | 8.0 | 5.0(0.8) |
Cha1-C19 | 34 | 76.3 × 37.5 | 11.0 × 4.6 | 2.4 | 7.3 | 14 | 0.044 | 0.28 | 0.098 | 45( 8) | 3.9 | 6.7 | 5.9(1.1) |
Cha1-C20 | 35 | 73.5 × 39.9 | 10.6 × 5.1 | 2.1 | 6.8 | 5.2 | 0.041 | 0.27 | 0.095 | 43( 8) | 3.7 | 6.5 | 5.7(1.1) |
Cha1-C21 | 36 | 37.4 × 29.0 | 4.6 × 3.0 | 1.6 | 7.1 | 19 | 0.043 | 0.10 | 0.11 | 38( 7) | 3.8 | 7.7 | 5.0(0.9) |
Cha1-C22 | 37 | 90.7 × 64.3 | 13.2 × 9.1 | 1.5 | 6.9 | 9 | 0.041 | 0.54 | 0.12 | 35( 6) | 3.7 | 8.1 | 4.5(0.8) |
Cha1-C23 | 38 | 40.5 × 37.0 | 5.2 × 4.5 | 1.1 | 6.9 | 10 | 0.042 | 0.14 | 0.087 | 48( 9) | 3.7 | 5.9 | 6.3(1.2) |
Cha1-C24 | 39 | 50.3 × 35.8 | 6.8 × 4.3 | 1.6 | 6.7 | 14 | 0.041 | 0.16 | 0.081 | 50(10) | 3.6 | 5.5 | 6.6(1.3) |
Cha1-C25 | 40 | 51.4 × 37.2 | 7.0 × 4.6 | 1.5 | 7.1 | 8 | 0.043 | 0.18 | 0.12 | 35( 6) | 3.8 | 8.3 | 4.6(0.8) |
Cha1-C26 | 41 | 111.5 × 43.7 | 16.4 × 5.7 | 2.9 | 6.7 | 7 | 0.041 | 0.44 | 0.10 | 40( 8) | 3.6 | 6.9 | 5.3(1.0) |
Cha1-C27 | 42 | 61.1 × 36.7 | 8.6 × 4.5 | 1.9 | 7.0 | 8 | 0.042 | 0.21 | 0.13 | 32( 5) | 3.8 | 9.1 | 4.1(0.7) |
Cha1-C28 | 43 | 59.6 × 32.1 | 8.4 × 3.6 | 2.3 | 6.6 | 8 | 0.040 | 0.17 | 0.087 | 46( 9) | 3.5 | 5.9 | 6.0(1.2) |
Cha1-C29 | 44 | 49.3 × 36.1 | 6.7 × 4.4 | 1.5 | 7.1 | 9 | 0.043 | 0.17 | 0.13 | 33( 6) | 3.8 | 8.8 | 4.3(0.7) |
Cha1-C30 | 45 | 105.2 × 51.2 | 15.5 × 7.0 | 2.2 | 6.3 | 7 | 0.038 | 0.46 | 0.099 | 39( 8) | 3.4 | 6.7 | 5.1(1.0) |
Cha1-C31 | 46 | 71.6 × 44.6 | 10.3 × 5.9 | 1.7 | 6.5 | 5.7 | 0.039 | 0.28 | 0.10 | 39( 7) | 3.5 | 6.9 | 5.1(1.0) |
Cha1-C32 | 47 | 91.5 × 49.5 | 13.3 × 6.7 | 2.0 | 6.5 | 11 | 0.039 | 0.40 | 0.10 | 38( 7) | 3.5 | 7.1 | 4.9(0.9) |
Cha1-C33 | 49 | 58.2 × 36.0 | 8.1 × 4.4 | 1.9 | 6.5 | 8 | 0.039 | 0.18 | 0.10 | 38( 7) | 3.5 | 7.0 | 5.0(1.0) |
Cha1-C34 | 50 | 139.3 × 42.7 | 20.7 × 5.6 | 3.7 | 6.3 | 5.5 | 0.038 | 0.50 | 0.10 | 37( 7) | 3.4 | 6.9 | 4.9(1.0) |
Cha1-C35 | 52 | 55.8 × 26.6 | 7.7 × 2.4 | 3.2 | 6.2 | 13 | 0.038 | 0.12 | 0.076 | 49(11) | 3.4 | 5.2 | 6.5(1.4) |
Cha1-C36 | 53 | 49.1 × 33.7 | 6.6 × 3.9 | 1.7 | 6.5 | 9 | 0.039 | 0.14 | 0.092 | 42( 8) | 3.5 | 6.3 | 5.5(1.1) |
Cha1-C37 | 54 | 77.6 × 30.1 | 11.2 × 3.2 | 3.5 | 6.1 | 7 | 0.037 | 0.19 | 0.091 | 41( 8) | 3.3 | 6.2 | 5.4(1.1) |
Cha1-C38 | 55 | 83.4 × 44.6 | 12.1 × 5.9 | 2.1 | 6.2 | 11 | 0.038 | 0.31 | 0.097 | 39( 8) | 3.3 | 6.6 | 5.1(1.0) |
Cha1-C39 | 56 | 82.3 × 35.8 | 11.9 × 4.3 | 2.8 | 6.0 | 6 | 0.036 | 0.24 | 0.098 | 37( 8) | 3.2 | 6.7 | 4.8(1.0) |
Cha1-C40 | 57 | 58.7 × 46.6 | 8.2 × 6.2 | 1.3 | 6.1 | 12 | 0.037 | 0.23 | 0.095 | 39( 8) | 3.3 | 6.4 | 5.1(1.0) |
Cha1-C41 | 58 | 48.3 × 31.9 | 6.5 × 3.6 | 1.8 | 6.1 | 12 | 0.037 | 0.13 | 0.083 | 45(10) | 3.3 | 5.6 | 5.9(1.3) |
Cha1-C42 | 59 | 48.7 × 26.0 | 6.6 × 2.3 | 2.9 | 6.0 | 8 | 0.036 | 0.10 | 0.064 | 57(14) | 3.2 | 4.3 | 7.4(1.8) |
Cha1-C43 | 60 | 90.0 × 45.6 | 13.1 × 6.0 | 2.2 | 5.7 | 9 | 0.035 | 0.32 | 0.084 | 41( 9) | 3.1 | 5.7 | 5.4(1.2) |
Cha1-C44 | 61 | 46.5 × 42.4 | 6.2 × 5.5 | 1.1 | 5.8 | 5.9 | 0.035 | 0.15 | 0.074 | 48(11) | 3.1 | 5.0 | 6.3(1.4) |
Cha1-C45 | 64 | 73.2 × 21.4 | 10.5 × 2.1 | 5.0 | 5.7 | 5.1 | 0.035 | 0.12 | 0.074 | 47(11) | 3.1 | 5.0 | 6.1(1.4) |
Cha1-C46 | 65 | 36.6 × 21.2 | 4.5 × 2.1 | 2.1 | 5.7 | 7 | 0.034 | 0.059 | 0.051 | 67(19) | 3.0 | 3.5 | 8.8(2.4) |
Cha1-C47 | 67 | 87.6 × 36.2 | 12.8 × 4.4 | 2.9 | 5.7 | 9 | 0.034 | 0.24 | 0.090 | 38( 8) | 3.1 | 6.1 | 5.0(1.1) |
Cha1-C48 | 68 | 50.7 × 24.0 | 6.9 × 2.1 | 3.3 | 5.5 | 7 | 0.033 | 0.090 | 0.059 | 56(15) | 2.9 | 4.0 | 7.4(1.9) |
Cha1-C49 | 70 | 40.2 × 26.9 | 5.1 × 2.5 | 2.1 | 5.6 | 9 | 0.034 | 0.082 | 0.072 | 47(11) | 3.0 | 4.9 | 6.2(1.5) |
Cha1-C50 | 71 | 60.6 × 54.3 | 8.5 × 7.5 | 1.1 | 5.5 | 12 | 0.033 | 0.24 | 0.086 | 39( 9) | 2.9 | 5.8 | 5.1(1.2) |
Cha1-C51 | 72 | 34.9 × 31.9 | 4.2 × 3.6 | 1.2 | 5.6 | 14 | 0.034 | 0.084 | 0.065 | 52(13) | 3.0 | 4.4 | 6.8(1.7) |
Cha1-C52 | 73 | 50.5 × 27.8 | 6.9 × 2.7 | 2.6 | 5.3 | 17 | 0.032 | 0.100 | 0.065 | 49(13) | 2.9 | 4.4 | 6.5(1.7) |
Cha1-C53 | 74 | 52.8 × 40.1 | 7.2 × 5.1 | 1.4 | 5.5 | 6 | 0.033 | 0.16 | 0.084 | 40( 9) | 2.9 | 5.7 | 5.2(1.2) |
Cha1-C54 | 78 | 36.6 × 29.9 | 4.5 × 3.2 | 1.4 | 5.2 | 17 | 0.032 | 0.077 | 0.060 | 53(14) | 2.8 | 4.1 | 6.9(1.8) |
Cha1-C55 | 79 | 40.7 × 28.8 | 5.2 × 2.9 | 1.8 | 5.3 | 10 | 0.032 | 0.084 | 0.077 | 42(10) | 2.9 | 5.2 | 5.5(1.3) |
Cha1-C56 | 80 | 46.3 × 22.4 | 6.2 × 2.1 | 2.9 | 5.2 | 9 | 0.031 | 0.073 | 0.056 | 57(16) | 2.8 | 3.8 | 7.4(2.1) |
Cha1-C57 | 81 | 51.1 × 40.1 | 7.0 × 5.1 | 1.4 | 5.4 | 7 | 0.032 | 0.15 | 0.12 | 27( 6) | 2.9 | 8.1 | 3.6(0.8) |
Cha1-C58 | 82 | 48.5 × 31.6 | 6.5 × 3.5 | 1.9 | 5.5 | 11 | 0.033 | 0.11 | 0.088 | 38( 9) | 3.0 | 6.0 | 5.0(1.1) |
Cha1-C59 | 83 | 41.0 × 21.4 | 5.3 × 2.1 | 2.5 | 5.3 | 14 | 0.032 | 0.063 | 0.052 | 61(17) | 2.9 | 3.5 | 8.0(2.3) |
Cha1-C60 | 84 | 61.6 × 43.7 | 8.7 × 5.7 | 1.5 | 5.1 | 9 | 0.031 | 0.18 | 0.071 | 43(11) | 2.8 | 4.8 | 5.7(1.4) |
Notes.
Size of the fitted Gaussian, deconvolved physical source size, and aspect ratio. Sizes smaller than 25.4″ were set to 25.4″ to compute the deconvolved sizes, in order to account for a fit inaccuracy corresponding to a 5σ detection in peak flux density. As a result, the minimum size that can be measured is about 2100 AU. The aspect ratio is the ratio of the deconvolved sizes along the major and minor axes.
Peak H2 column density computed assuming a dust opacity of 0.01 cm2 g-1. The statistical rms uncertainty is 1.1 × 1021 cm-2.
Mass in the central beam (HPBW = 21.2″), total mass derived from the Gaussian fit, and mass computed from the flux measured in an aperture of 50″ in diameter. The statistical rms uncertainties of Mpeak and M50″ are 0.006 and 0.011 M⊙, respectively.
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