Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-25T15:56:35.137Z Has data issue: false hasContentIssue false
  • English
  • Français

The Sharpless 187 Gas Complex : A Study of the Molecular, Atomic, Ionized and Dust Components

Published online by Cambridge University Press:  12 April 2016

Gilles Joncas ,
Daniel Durand ,
C. Kömpe  and
R.S. Roger
Gilles Joncas
Affiliation:
Dépt. de Physique, Université Laval, Québec, Canada, G1K 7P4
Daniel Durand
Affiliation:
Dominion Astrophysical Observatory, Victoria, B.C., Canada, V8X 4M6
C. Kömpe
Affiliation:
Herzberg Institute of Astrophysics, Ottawa, Ont., Canada, K1A OR6
R.S. Roger
Affiliation:
Dominion Radio Astrophysical Observatory, Penticton, B.C., Canada, V2A 6K3

Extract

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.

Star forming regions are one of the active components of the interstellar medium and as such play an important role in the galactic “ecosystem”. When massive young stars are borned they have a strong impact on their environment through their radiation flux and stellar wind. We are then facing complicated interplays between gas in different states (ionized, atomic and molecular), dust particles and the young stars. The understanding of these interplays can only be done using multifrequency observations. Such an endaveour is already in progress (see Joncas et al. 1988 and Kömpe et al. 1989). We will describe here the young star forming region S187 (Sharpless 1959). This gas complex is nearby (≈1 kpc) thus permitting high spatial resolution with medium size instruments. It contains a faint optically visible HII region ionized by an unidentified BO or BO.5 star. The associated molecular cloud, discovered by Blair et al. (1975), contains a molecular outflow (Bally and Lada 1983) to which an H2O maser is associated (Henkel et al. 1986).

Type
I. Molecular Clouds, Star Formation And HII Regions
Information
International Astronomical Union Colloquium , Volume 120: Structure and Dynamics of the Interstellar Medium , 1989 , pp. 111 - 116
Copyright
Copyright © Springer-Verlag 1989

References

Bally, J., Lada, C.J.: 1983, Astrophys. J. 265, 824 CrossRefGoogle Scholar
Blair, G.N., Peters, W.L., Vanden Bout, P.A.: 1975, Astrophys. J. 200, L161 CrossRefGoogle Scholar
Evans, N.J. II,: 1980, “Interstellar molecules”, IAU Symposium 87, ed. Andrew, B., Reidel, Dordrecht, 1 Google Scholar
Henkel, C., Haschich, A.D., Gusten, R.: 1986, Astron. Astrophys. 165, 197 Google Scholar
Joncas, G., Kömpe, C., de la Noë, J.: 1988, Astrophys. J. 332, 1030 CrossRefGoogle Scholar
Joncas, G., Roger, R.S., Dewdney, P.E.: 1989a, Astron. Astrophys. in pressGoogle Scholar
Joncas, G., Dewdney, P., Durand, D., Kömpe, C., Roger, R.S.: 1989b, in preparationGoogle Scholar
Kömpe, C., Joncas, G., Beaudry, A., Wouterloot, J.G.A.: 1989, Astron. Astrophys. in pressGoogle Scholar
Panagia, N.: 1973, Astron. J. 78, 929 CrossRefGoogle Scholar
Rossano, G.S.: 1978, Astron. J. 83, 1214 CrossRefGoogle Scholar
Sharpless, S.: 1959, Astrophys. J. Suppl., 4, 257 CrossRefGoogle Scholar