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Table 6

Projected core separations, and the Jeans instability parameters in the fragmented clumps of G304.74.

Source M a N cores b λsep c λ J d λsep ⟩ /λJ e M J f N J g
[M] [pc] [pc] [M]

SMM 1 128 ± 68 2 0.19 ± 0.01 0.20 ± 0.05 0.95 ± 0.24 8.3 ± 0.6 15 ± 8
SMM 4 136 ± 73 3 0.23 ± 0.04 0.12 ± 0.03 1.92 ± 0.58 6.3 ± 1.7 22 ± 13
IRAS 13037 59 ± 31 2 0.41 0.16 ± 0.04 2.56 ± 0.64 12.3 ± 3.2 5 ± 3
SMM 6 34 ± 18 2 0.17 ± 0.01 < 0.21 > 0.76 < 11.1 > 1
SMM 7 41 ± 22 2h 0.09 0.15 ± 0.04 0.60 ± 0.16 8.3 ± 2.2 5 ± 3
IRAS 13039 58 ± 31 2 0.24 ± 0.07 0.22 ± 0.06 1.09 ± 0.44 18.5 ± 4.8 3 ± 2

Notes.

(a)

Mass of the clump (see Table 4).

(b)

Number of SABOCA cores in the LABOCA clump.

(c)

The mean value of the nearest-neighbour distances between the cores. The quoted uncertainty is the standard error of the mean, and it could be calculated for systems of three or more cores.

(d)

The local thermal Jeans length calculated for the clump temperature from Table 4.

(e)

The ratio between the observed average core separation and the Jeans length.

(f)

The Jeans mass corresponding to the Jeans length in Col. (5).

(g)

The Jeans number defined by NJ = MJ/M.

(h)

A visual inspection of the SABOCA image suggests that SMM 7 is fragmented into two cores, but our BLOBCAT analysis treated the cores as a single source.

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