Free Access

Table 7

Mass estimates.

Source # Mcdb

Mblast Mvira N2H+ HNC HCO+ HCN NH3c
[M] [M] [× 10-9   M] [× 10-9   M] [× 10-9   M] [× 10-9   M] [× 10-7   M]

3 23.2 68.1  −  −  −  −  −
9 3.1 15.9  − 2.6 1.6 0.3 7.9
13 6.4  −  − 3.7 7.6 3.5  −
14 7.7 8.9  −  −  −  −  −
24 98.0 87.3 5.4 25.7 54.1 17.8 5.8
31 4.0 26.4  − 0.02 2.3 0.6 31.8
34 4.6  −  − 2.1 1.9  −  −
38 2.2 32.4  −  −  −  −  −
40 6.3 11.3 0.13 4.9 13.9 2.5 2.1
41 2.8 10.8  −  − 7.4  − 0.8
44 5.8 19.1  −  −  −  −  −
45 2.1 17.6  −  −  −  −  −
47 2.6 44.7  − 2.2 2.7 5.7 4.6
50 2.3  −  −  − 6.0 9.9  −
53 11.6 25.9  −  −  −  −  −
56 1.8  −  − 0.1 1.5 0.6  −
57 14.0 27.0  −  − 8.7  −  −
59 1.8 17.5  −  −  −  −  −
63 13.4 64.6 1.5 4.7 10.3 8.3 9.0
77 3.7 12.3  −  −  −  −  −
81 69.9 88.8 2.2 13.4 40.4 14.2 0.6
82 16.5 42.2 2.4 8.1 29.8 4.2 1.4
89 2.4  −  −  − 6.7  −  −
90 22.2 43.9  −  −  −  −  −
93 15.2 17.7  −  −  −  −  −
97 24.4 54.5  −  −  −  −  −
101 2.1  −  − 1.0 3.5 0.9  −
109 1.0  −  −  − 0.9  −  −

Notes. 

(a)

Mvir is determined assuming a uniform density spherical source.

(b)

Mcd is determined only when a spectral line map was available, with the exception of NH3.

(c)

M [NH3]  is listed only for those sources where an estimate of the rotational temperature, T12, was possible, and where an estimate of the source diameter could be obtained from at least one of the molecular tracers.

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.