Publication Abstracts

Olofsson et al. 1998

Olofsson, G., L. Pagani, J. Tauber, P. Febvre, A. Deschamps, P. Encrenaz, H.-G. Florén, S. George, B. Lecomte, B. Ljung, L. Nordh, J.R. Pardo, I. Peron, M. Sjökvist, K. Stegner, L. Stenmark, and C. Ullberg, 1998: Low interstellar abundance of O2 confirmed by the PIROG 8 balloon experiment. Astron. Astrophys., 339, 81-84.

Using a balloon-borne 60 cm telescope equipped with an SIS receiver we have searched for the 425 GHz molecular oxygen line in the NGC7538 and the W51 regions. The experiment was technically successful (confirmed by the detection of the 13C(4-3) line at 440 GHz), but we failed to detect emission from molecular oxygen. The inferred upper limits of the O2/CO ratio are 0.04 and 0.05 (3σ) for the two regions, which are the lowest upper limits so far determined for Galactic clouds.

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BibTeX Citation

@article{ol01000b,
  author={Olofsson, G. and Pagani, L. and Tauber, J. and Febvre, P. and Deschamps, A. and Encrenaz, P. and Florén, H.-G. and George, S. and Lecomte, B. and Ljung, B. and Nordh, L. and Pardo, J. R. and Peron, I. and Sjökvist, M. and Stegner, K. and Stenmark, L. and Ullberg, C.},
  title={Low interstellar abundance of O2 confirmed by the PIROG 8 balloon experiment},
  year={1998},
  journal={Astron. Astrophys.},
  volume={339},
  pages={81--84},
}

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RIS Citation

TY  - JOUR
ID  - ol01000b
AU  - Olofsson, G.
AU  - Pagani, L.
AU  - Tauber, J.
AU  - Febvre, P.
AU  - Deschamps, A.
AU  - Encrenaz, P.
AU  - Florén, H.-G.
AU  - George, S.
AU  - Lecomte, B.
AU  - Ljung, B.
AU  - Nordh, L.
AU  - Pardo, J. R.
AU  - Peron, I.
AU  - Sjökvist, M.
AU  - Stegner, K.
AU  - Stenmark, L.
AU  - Ullberg, C.
PY  - 1998
TI  - Low interstellar abundance of O2 confirmed by the PIROG 8 balloon experiment
JA  - Astron. Astrophys.
VL  - 339
SP  - 81
EP  - 84
ER  -

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