EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 540 (April 2012) A&A, 540 (2012) A84 Full HTML
Free Access

Table 3

Cooling budget with Herschel/PACSa.

Species Obs.b Fraction ofb Cool componentc Warm componentc RADEX modeld
log    L gas cooling T (K) log L T (K) log L Te log  L
H2O  −1.6 0.45 110 47.0  −1.1 220 46.0  −1.6 (220) 48.2  −1.5
CO  −1.6 0.45 280 49.6  −1.8 880 48.5  −1.9 (880) 48.5  −2.0
OH  −2.3 0.09 60 47.1  −1.6 425 44.2  −3.2 (60) 47.6  −2.4
[O I]f  −3.5 0.005 – – – – – – – 47.9  −3.5

Notes. 

(a)

All luminosities in units of L⊙.

(b)

PACS lines from 53–200 μm, uncorrected for extinction.

(c)

From fits to excitation diagrams. The warm and cool components are not necessarily the same region for each molecule.

(d)

RADEX model with temperature of 1500 K and log n(H2) = 6.5.

(e)

The component explained by RADEX model, not the excitation temperature calculated from RADEX model.

(f)

[O I] emission is detected from a different physical location than the molecular emission.

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.