Laboratory detection and pure rotational spectrum of AlSH (X̃1A′)

A. Janczyk, Lucy M Ziurys

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The pure rotational spectrum of AlSH (X̃ 1A′) has been recorded using millimeter and submillimeter direct absorption techniques. Measurements of its deuterium isotopomer have been recorded as well. This study is the first laboratory detection of this molecule, which was created by the reaction of aluminum vapor and H2S. Nine and seven rotational transitions of AlSH and AlSD were measured, respectively, each consisting of Ka = 0 through Ka = 6 asymmetry components. From these data, rotational constants have been established. Calculation of an r 0 structure indicates that AlSH is bent with an angle near 90°. These measurements will enable searches for AlSH to be carried out in circumstellar gas, where aluminum-bearing molecules, as well as H2S, are present.

Original languageEnglish (US)
JournalAstrophysical Journal
Volume639
Issue number2 II
DOIs
StatePublished - Mar 10 2006

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rotational spectra
aluminum
deuterium
molecules
asymmetry
vapors
gases
gas
detection
laboratory
calculation

Keywords

  • Astrochemistry
  • ISM: molecules
  • Line: identification
  • Methods: laboratory
  • Molecular data
  • Stars: AGB and post-AGB

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Laboratory detection and pure rotational spectrum of AlSH (X̃1A′). / Janczyk, A.; Ziurys, Lucy M.

In: Astrophysical Journal, Vol. 639, No. 2 II, 10.03.2006.

Research output: Contribution to journalArticle

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