Table · dataset · 2022
Transitions of cysteamine analysis
Listed in IVOA Registry (Virtual Observatory)
Cysteamine (NH_2_CH_2_CH_2_SH), a molecule of potential astrobiological interest, has not yet been detected in the interstellar medium.
Description
Furthermore, the sulfur-substituted isomer of ethanolamine (or 2-aminoethanol) has been recently detected in the molecular cloud G+0.693-0.027. In order to conduct a new interstellar search for cysteamine in the molecular cloud G+0.693-0.027, its pure rotational spectrum needs to be investigated in the laboratory.
The pulsed-jet Fourier transform microwave spectrometer and the Stark-modulated free-jet millimeter-wave absorption spectrometer were used to measure the purely rotational spectrum of cysteamine in the range of 6.5-18GHz (46.12-16.66mm) and 59.6-120.0GHz (5.03-2.72mm), respectively. We used a deep spectral line survey toward the molecular cloud G+0.693-0.027 obtained with the IRAM 30m and Yebes 40m radiotelescopes to search for cysteamine.
Read the rest (2 more)
We assigned 815 rotational transition lines of five conformers (gGt, gGg, g'Gg, g'Gg', and g'Gt) to fit the rotational constants, quartic centrifugal distortion constants, and the 14N nuclear quadrupole coupling constants. For four conformers (gGt, gGg, g'Gg, and g'Gg'), the 34S isotopologs were observed, and for two of them (gGg and g'Gg), the ^13^C and ^15^N isotopolog spectra were also detected; all are in natural abundance.
The five conformers of cysteamine were not detected toward the G+0.693-0.027 molecular cloud. We derived upper limits for their molecular abundances compared to molecular hydrogen of<(0.2-1.3)x10^-10^. The relative abundances with respect to the oxygen counterpart ethanolamine, previously detected toward this cloud, are NH_2_CH_2_CH_2_OH/NH_2_CH_2_CH_2_SH>0.8-5.3.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/661/A129 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2022A&A...661A.129S ui.adsabs.harvard.edu/abs/2022A%26A...661A.129S ↗
publication · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds.vizier/j/a%2Ba/661/a129 ↗
catalogue entry · from IVOA Registry
Topics
- From keywords
- Astronomy & Astrophysics
Provenance · 1 source records, 7 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/a+a/661/a129 | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license_text | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |