2003A&A...410..897P


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.02CET12:07:33

2003A&A...410..897P - Astronomy and Astrophysics, volume 410, 897-904 (2003/11-2)

Search for solid HDO in low-mass protostars.

PARISE B., SIMON T., CAUX E., DARTOIS E., CECCARELLI C., RAYNER J. and TIELENS A.G.G.M.

Abstract (from CDS):

We present ground-based 2.1 to 4.2µm observations of four low-mass protostars. We searched for the 4.1µm OD stretch band, characteristic of solid HDO in grain mantles. We did not detect solid HDO in any of the four sources, but we derive 3σ upper limits from 0.5% to 2% for the HDO/H2O ratio depending on the source. These ratios provide strong constraints to solid-state deuteration models when compared to deuterium fractionation values observed in the gas phase. We discuss various scenarios that could lead to such a low water deuteration compared to the high formaldehyde and methanol deuteration observed in the gas-phase.

Abstract Copyright:

Journal keyword(s): astrochemistry - ISM: abundances, molecules, lines and bands - stars: formation - individual objects: NGC 1333 SVS12, NGC 1333 SVS13, L1489 IRS, TMR 1

Simbad objects: 12

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Number of rows : 12

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 HD 20995 * 03 24 29.7030277154 +33 32 09.326561014 5.630 5.78 5.80     A0V 32 0
2 HH 12 HH 03 28 59.4 +31 20 11           ~ 118 1
3 ASR 114 Y*O 03 29 01.16520 +31 20 24.4140           ~ 72 1
4 V* V512 Per Or* 03 29 03.7567945196 +31 16 03.959183877           ~ 356 0
5 NGC 1333 OpC 03 29 11 +31 18.6           ~ 1252 1
6 HD 23258 * 03 44 28.2036044846 +20 55 43.450013193   6.100 6.074     A0Vp_lB 52 0
7 IRAS 04016+2610 Y*O 04 04 43.07064 +26 18 56.3904           ~ 240 0
8 IRAS 04361+2547 Y*O 04 39 13.89288 +25 53 20.8788           ~ 187 1
9 * k Tau PM* 04 58 09.3923534616 +25 03 01.469484500   5.803 5.785     A0V 60 0
10 IRAS 16293-2422 cor 16 32 22.56 -24 28 31.8           ~ 1078 1
11 W 33a Y*O 18 14 39.0 -17 52 03           ~ 593 0
12 IRAS 23118+6110 Y*O 23 14 01.63 +61 27 20.2           ~ 349 0

    Equat.    Gal    SGal    Ecl

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2021.03.02-12:07:33

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