Publication Abstracts

Thaddeus et al. 1974

Thaddeus, P., J. Mather, J.H. Davis, and G.N. Blair, 1974: Detection of the J=1→0 rotational transition of vibrationally excited silicon monoxide. Astrophys. J., 192, L33-L36, doi:10.1086/181583.

The ν=1, J=1→0 rotational transition of SiO at 43.1 GHz has been detected in the direction of Becklin's star in the Orion Nebula, and in the M-type star W Hya. In Orion two velocity components are observed, one (the stronger) at a radial velocity of 17 km/s, the other at -7 km/s; in W Hya a single line is observed at 39 km/s. In each case a line at the same radial velocity has been observed at 86.2 GHz in the ν=1, J=2→1 transition, so that the presence of vibrationally excited SiO would seem to be ocnfirmed beyond a reasonable doubt. In the ν=1 state, the photon fluxes of the J=2→1 and 1→0 transitions are about equal, suggested saturated masers occupying the same region of space.

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BibTeX Citation

@article{th01100t,
  author={Thaddeus, P. and Mather, J. and Davis, J. H. and Blair, G. N.},
  title={Detection of the J=1→0 rotational transition of vibrationally excited silicon monoxide},
  year={1974},
  journal={Astrophysical Journal},
  volume={192},
  pages={L33--L36},
  doi={10.1086/181583},
}

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RIS Citation

TY  - JOUR
ID  - th01100t
AU  - Thaddeus, P.
AU  - Mather, J.
AU  - Davis, J. H.
AU  - Blair, G. N.
PY  - 1974
TI  - Detection of the J=1→0 rotational transition of vibrationally excited silicon monoxide
JA  - Astrophys. J.
JO  - Astrophysical Journal
VL  - 192
SP  - L33
EP  - L36
DO  - 10.1086/181583
ER  -

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