Doubly deuterated formaldehyde in star-forming regions: an observational approach

Doubly deuterated formaldehyde in star-forming regions: an observational approach

We present the results of a search for the doubly deuterated form of formaldehyde (D 2CO) in a large sample of objects associated to star-formation. D 2CO was detected in nearly 20 low-mass protostars, a success rate of 100%, with [D 2CO]/[H 2CO] abundance ratios of 2–40%. On the other hand, no dete...

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Veröffentlicht in:Planetary and space science 2002-10, Vol.50 (12), p.1205-1213
Hauptverfasser: Loinard, L, Castets, A, Ceccarelli, C, Lefloch, B, Benayoun, J.-J, Caux, E, Vastel, Ch, Dartois, E, Tielens, A.G.G.M
Format: Artikel
Sprache:eng
Schlagworte:
Abundances—ISM
Astrochemistry—ISM
Formation—ISM
Molecules—stars
Outflows
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Zusammenfassung:We present the results of a search for the doubly deuterated form of formaldehyde (D 2CO) in a large sample of objects associated to star-formation. D 2CO was detected in nearly 20 low-mass protostars, a success rate of 100%, with [D 2CO]/[H 2CO] abundance ratios of 2–40%. On the other hand, no detection was obtained towards more massive protostars (where [D 2CO]/[H 2CO]
ISSN:0032-0633
1873-5088
DOI:10.1016/S0032-0633(02)00084-3