EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 564 (April 2014) A&A, 564 (2014) A106 Full HTML
Free Access

Table 1

Molecular cloud parameters.

Cloud Distance Res.a ⟨N(H2)⟩ b Massc ⟨T⟩ d ⟨UV−flux⟩ e r1, r2, r3, r4f
[kpc] [pc] [1022 cm-2] [104M⊙] [K] [G◦] [pc]
M 16 1.8 0.35 1.23 37.0 10.7 (6–23) 280 (20–1.8 × 104) 3, 5, 10, 15
Rosette 1.6 0.28 0.31 9.9 23.4 (12–36) 10 (1–104) 20, 25, 39, 54
RCW 120 1.3 0.23 0.29 0.6 17.2 (13–25) 125 (4−8000) 2.5, 4.3, 5.5, 6.8
Vela C/RCW 36 0.7 0.12 0.75 3.1 14.7 (11–29) 230 (50–1.5 × 104) 1.4, 3.2, 5.2, 6.6

Notes.

(a)

Spatial resolution scale of the column density map (37′′).

(b)

Averaged (over the whole map) column density of gas and dust, assuming a gas-to-dust ratio of 100. These values may differ from the average value in the largest disks (regions 1 + 2 + 3 + 4) used for the PDFs.

(c)

Total mass from column density map above N(H2) = 1021 cm-2 using the conversion formula N(H2)/AV = 0.94 × 1021 cm-2 mag-1 (Bohlin et al. 1978).

(d)

Average dust temperature (total range in parenthesis) from Herschel data.

(e)

Average and min/max UV-flux (Schneider, priv. comm.) in Habing field, determined using the 70 μm and 160 μm Herschel flux. Details of the method are described in Roccatagliata et al. (2013). For RCW 120, the typical value in the PDR-zone is 1–2 × 103 G◦, consistent with what is determined by Rodón et al. (in prep.) using the spectral type of the exciting star.

(f)

Radii of the different disks used to compute the PDFs.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.