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Home All issues Volume 566 (June 2014) A&A, 566 (2014) A79 Full HTML
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Table 3

OH+ lines detected with SPIRE.

λ0 λOBS Surface S/Nb
(μm) (μm) brightnessa
NGC 6781 – centre
OH+ 290.20 290.20 (2.2 ± 1.0)b 2.7
OH+ 308.48 308.77 1.10 ± 0.09 12
OH+ 329.77 329.95 0.24 ± 0.12 5.8
NGC 6781 – west rim
OH+ 290.20 290.37 6.0 ± 0.9 9.2
OH+ 308.48 308.65 0.99 ± 0.03 30
OH+ 329.77 329.90 0.11 ± 0.10 6.4
NGC 6720 – centre
OH+ 290.20 290.05 1.68 ± 0.20 6.9
OH+ 308.48 308.45 2.18 ± 0.07 27
OH+ 329.77 329.52 0.40 ± 0.06 5.9
NGC 6720 – north rim
OH+ 290.20 290.14 3.7 ± 0.4 9.3
OH+ 308.48 308.39 3.74 ± 0.11 28
OH+ 329.77 329.76 1.00 ± 0.09 8.5
NGC 6445 – centre
OH+ 290.20 290.12 (0.93 ± 0.13) 2.7
OH+ 308.48 308.47 2.64 ± 0.09 24
OH+ 329.77 329.64 0.91 ± 0.10 6.7
NGC 6445 – lobe
OH+ 290.20 290.21 1.56 ± 0.13 11
OH+ 308.48 308.49 2.40 ± 0.10 20
OH+ 329.77 329.78 0.43 ± 0.04 10

Notes.

(a)

Surface brightness in 10-17 erg cm-2 s-1 arcsec-2. See text for details on the measurements. Numbers in parentheses are below the 3σ detection limit. Errors obtained from the reduction process are shown.

(b)

Signal-to-noise ratio.

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