Deuterated formaldehyde in ρ Ophiuchi A | Astronomy & Astrophysics (A&A)

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Table 11

Other column density ratios.

Source	SO/	SO₂/	N₂D⁺/N₂H⁺^a^b

D-peak	25 ± 5		0.078 ± 0.011
P1	13 ± 2^b		0.0083 ± 0.0024
CH₃OH-peak	>18^c		0.024 ± 0.010
S-peak	4.7 ± 0.7^b	14 ± 3

Notes.

^(a)

N(N₂H⁺) estimated from André et al. (2007);

^(b)

not corrected for opacity;

^(c)

3σ limit.

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