Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-23T10:21:32.219Z Has data issue: false hasContentIssue false
  • English
  • Français

Molecular spectral line surveys and the organic molecules in the interstellar molecular clouds

Published online by Cambridge University Press:  01 February 2008

Masatoshi Ohishi
Masatoshi Ohishi*
Affiliation:
Astronomy Data Center, National Astronomical Observatory of Japan, the Graduate University for Advanced Studies (SOKENDAI), & the National Institute for Informatics, 2-21-1, Osawa, Mitaka, Tokyo, 181-8588, Japan email: [email protected]
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

It is known that more than 140 interstellar and circumstellar molecules have so far been detected, mainly by means of the radio astronomy observations. Many organic molecules are also detected, including alcohols, ketons, ethers, aldehydes, and others, that are distributed from dark clouds and hot cores in the giant molecular clouds. It is believed that most of the organic molecules in space are synthesized through the grain surface reactions, and are evaporated from the grain surface when they are heated up by the UV radiation from adjacent stars.

On the other hand the recent claim on the detection of glycine have raised an important issue how difficult it is to confirm secure detection of weak spectra from less abundant organic molecules in the interstellar molecular cloud.

I will review recent survey observations of organic molecules in the interstellar molecular clouds, including independent observations of glycine by the 45 m radio telescope in Japan, and will discuss the procedure to securely identify weak spectral lines from organic molecules and the importance of laboratory measurement of organic species.

Keywords

ISM: moleculesline: identificationmolecular data
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S251: Organic Matter in Space , February 2008 , pp. 17 - 26
Copyright
Copyright © International Astronomical Union 2008

References

Bottinelli, S., Ceccarelli, C., Lefloch, B., Williams, J. P., Castets, A., Caux, E., Cazaux, S., Maret, S., Parise, B., & Tielens, A. G. G. M. 2004, ApJ, 615, 354CrossRefGoogle Scholar
Cazaux, S., Tielens, A. G. G. M., Ceccarelli, C., Castets, A., Wakelam, V., Caux, E., Parise, B., & Teyssier, D. 2003, ApJ (Letter), 593, L51CrossRefGoogle Scholar
Friedel, D. N., Snyder, L. E., Remijan, A. J., & Turner, B. E. 2005, ApJ (Letter), 632, L95CrossRefGoogle Scholar
Hollis, J. M., Jewell, P. R., Lovas, F. J., & Remijan, A. J. 2004b, ApJ (Letter) 613, L45CrossRefGoogle Scholar
Hollis, J. M., Jewell, P. R., Lovas, F. J., Remijan, A. J., & Møllendal, H. 2004a, ApJ (Letter) 610, L21CrossRefGoogle Scholar
Hollis, J. M., Lovas, F. J., & Jewell, P. R. 2000, ApJ (Letter), 540, L107CrossRefGoogle Scholar
Hollis, J. M., Lovas, F. J., Jewell, P. R., & Coudert, L. H. 2002, ApJ (Letter), 571, L59CrossRefGoogle Scholar
Hollis, J. M., Lovas, F. J., Remijan, A. J., Jewell, P. R., Ilyushin, V. V., & Kleiner, I. 2006, ApJ (Letter), 643, L25CrossRefGoogle Scholar
Kaifu, N., Ohishi, M., Kawaguchi, K., Saito, S., Yamamoto, S., Miyaji, T., Miyazawa, K., Ishikawa, S., Noumaru, C., Harasawa, S., Okuda, M., & Suzuki, H. 2004, PASJ, 56, 69CrossRefGoogle Scholar
Kuan, Y. J., Charnley, S. B., Huang, H. C., Tseng, W. L., & Kisiel, Z. 2003, ApJ, 593, 848CrossRefGoogle Scholar
Kuan, Y. J., Huang, H. C., Charnley, S. B., Hirano, N., Takakuwa, S., Wilner, D. J., Liu, S. Y., Ohashi, N., Bourke, T. L., Qi, C. H., & Zhang, Q. Z. 2004, ApJ (Letter), 616, L27CrossRefGoogle Scholar
Müller, H. S. P., Schlöder, F., Stutzki, J., & Winnewisser, G. 2005, J. Mol. Struct., 742, 215CrossRefGoogle Scholar
Müller, H. S. P., Thorwirth, S., Roth, D. A., & Winnewisser, G. 2001, A&A (Letter), 370, L49Google Scholar
Lovas, F. J., Remijan, A. J., Hollis, J. M., Jewell, P. R., & Snyder, L. E. 2006, ApJ (Letter), 637, L37CrossRefGoogle Scholar
Odashima, H. 2006, private communicationGoogle Scholar
Ohishi, M. & Kaifu, N. 1998, J. Chem. Soc., Faraday Discussion, 109, 205CrossRefGoogle Scholar
Remijan, A. J., Hollis, J. M., Lovas, F. J., Stork, W. D., Jewell, P. R., & Meier, D. S. 2008, ApJ (Letter), 675, L85CrossRefGoogle Scholar
Sakai, N., Sakai, T., & Yamamoto, S 2006, PASJ (Letter), 58, L15CrossRefGoogle Scholar
Sakai, N., Sakai, T., & Yamamoto, S. 2007, ApJ, 660, 363CrossRefGoogle Scholar
Snyder, L. E., Lovas, F. J., Hollis, J. M., Friedel, D. N., Jewell, P. R., Remijan, A. J., Ilyushin, V. V., Alekseev, E. A., & Dtubko, S. F. 2005, ApJ, 619, 914CrossRefGoogle Scholar