C.D.S. - SIMBAD4 rel 1.7 - 2021.03.01CET09:29:09

2004A&A...427..887F - Astronomy and Astrophysics, volume 427, 887-893 (2004/12-1)

Multiply-deuterated species in prestellar cores.


Abstract (from CDS):

We have studied the ortho, para, and, in the case of D3+, meta forms of the multiply-deuterated isotopes of H3+, under physical conditions believed to be appropriate to pre-protostellar cores. As deuterons have integral nuclear spin, I=1, Bose-Einstein statistical laws apply. Having extended the network of chemical reactions used in our previous study (Walmsley et al., 2004A&A...418.1035W), we have calculated the population densities of ortho- and para-D2H+ and of ortho- and meta-D3+. In the former case, comparison is made with the recent observations of para-D2H+ in the prestellar core 16293E (Vastel et al., 2004ApJ...606L.127V). Using radiative transition probabilities computed by Ramanlal & Tennyson (2003A&A...406..383R), we have predicted the intensities of the near infrared vibrational transitions of the deuterated isotopes of H3+. Many of these transitions can be observed, in absorption, only from above the Earth's atmosphere, but some might be detectable through atmospheric windows.

Abstract Copyright:

Journal keyword(s): stars: formation - astrochemistry - ISM: clouds

Errata: + corrigendum vol. 511, C1 (2010)

Simbad objects: 2

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Number of rows : 2

N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
1 V* DM Tau Or* 04 33 48.7335659850 +18 10 09.974471722 14.30 14.82 14.00     M2Ve 533 0
2 NAME IRAS 16293E cor 16 32 29.060 -24 29 10.27           ~ 55 1

    Equat.    Gal    SGal    Ecl

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