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Table 10

Large-scale filamentary structures in Cha I probed with LABOCA at 870 μm (see Fig. 5b).

Nfil RAa Deca fpeaka fmeanb ftotb Ac θmajd θmind Rae Npeakf Nmeanf Mg amajh aminh Mtoti Mlinj
(J2000) (J2000) (mJy/21″-beam) (Jy) (′ × ′) (′) (′) (1021 cm-2) (M) (pc) (pc) (M) (M / pc)
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13) (14) (15) (16) (17)

1 11:06:38.57 –77:23:48.4 200 55 18.2 46.6 13.0 4.2 3.1 17.5 4.9 9.7 0.57 0.18 19.0 33
2 11:10:00.10 –76:35:37.2 116 36 20.2 79.4 22.2 3.9 5.7 10.2 3.2 10.7 0.97 0.17 16.0 17
3 11:07:46.92 –77:38:04.9 73 24 7.8 45.2 10.5 4.9 2.1 6.4 2.1 4.1 0.46 0.22 6.6 14
4k 11:02:27.42 –77:38:59.6 51 23 10.8 67.0 10.2 4.4 2.3 4.5 2.0 5.7 0.45 0.19 9.1 8
4k 16.5 2.3 7.3 0.72 0.10
5 11:04:22.92 –77:46:59.4 44 21 2.2 14.5 5.9 2.7 2.1 3.9 1.8 1.1 0.26 0.12 2.6 10

Notes. 

(a)

Peak position and flux density measured with Clumpfind.

(b)

Mean and total flux densities inside the contour at 10 mJy/21″-beam (about 3.3σ) – hereafter called contour C.

(c)

Angular area of contour C.

(d)

Major and minor angular axes of contour C measured by hand.

(e)

Aspect ratio.

(f)

Peak and mean H2 column density.

(g)

Mass within contour C in smoothed map at scale 5.

(h)

Physical major and minor axes of contour C.

(i)

Mass within contour C in full LABOCA map.

(j)

Mass per unit length Mtot / amaj.

(k)

This structure has a T shape and consists of two filaments that were identified as a single structure by Clumpfind. The major and minor axes were measured for each filament separately, but all other parameters correspond to the entire structure.

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