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Recent Results on Associations: Anatomy of CMa OB1 and Mon OB1

Published online by Cambridge University Press:  14 August 2015

William Herbst
William Herbst*
Affiliation:
Van Vleck Observatory, Wesleyan University

Extract

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Three types of associations are presently recognized. These are OB, R, and T, and represent, respectively, concentrations of O and B type stars, reflection nebulae, and T Tauri stars, in certain regions of the sky. OB and T associations are identified on objective prism plates; R associations may be found using direct plates such as those of the Palomar Sky Survey. All associations are intimately connected with what appear optically as dark clouds and are now detected as sources of molecular line emission and known as molecular clouds. Often, all three types of associations are found within the same cloud complex (eg, Mon OB1). However, there are also examples of T associations (Taurus) and R associations (Mon R2) which are not connected with recognized OB associations.

Type
August 27 Introduction, Associations, Galactic Structure
Information
Symposium - International Astronomical Union , Volume 85: Star Clusters , 1980 , pp. 33 - 49
Copyright
Copyright © Reidel 1980 

References

Assousa, G.E., Herbst, W. and Turner, K.C.: 1911, Astrophys. J. (Letter) 218, L13.CrossRefGoogle Scholar
Blaauw, A.: 1964, Ann, Rev. Astron. Astrophys 2, 213.Google Scholar
Blitz, L.: 1978, NASA Technical Memorandum 79708 (, Columbia University).Google Scholar
Cameron, A.G.W. and Truran, J.W.: 1977, Icarus 30, 447.Google Scholar
Claria, J.J.: 1974a, Astron. J. 79, 1022.CrossRefGoogle Scholar
Claria, J.J.: 1974b, Astron. Astrophys, 37, 229,Google Scholar
Cohen, M. and Kuhi, L.V.: 1979, Astrophys. J. (Suppl.), in press,Google Scholar
Collins, G.W. and Sonneborn, G.H.: 1977, Astrophys. J. (Suppl.) 34, 41.CrossRefGoogle Scholar
Crutcher, R.M., Hartkopf, W.I. and Giguere, P.T.: 1978, Astrophys, J. 226, 839.CrossRefGoogle Scholar
Eggen, O.J.: 1978, Publ. Astron. Soc. Pacific 90, 436.Google Scholar
Elmegreen, B.G. and Lada, C.J.: 1977, Astrophys. J. 214, 725.Google Scholar
Hawarden, T.G. and Brand, P.W.J.L.: 1976, Monthly Notices Roy. Astron. Soc. 175, 19P.CrossRefGoogle Scholar
Herbig, G.H.: 1960, Astrophys. J. (Suppl.) 4, 337.Google Scholar
Herbig, G.H. and Rao, N.K.: 1972, Astrophys. J. 174, 401.Google Scholar
Herbst, W. and Assousa, G.E.: 1977, Astrophys. J. 217, 473.Google Scholar
Herbst, W., Racine, R. and Richer, H.B.: 1977, Publ. Astron. Soc. Pacific 89, 663.Google Scholar
Herbst, W., Racine, R., and Warner, J.W.: 1978, Astrophys. J. 223, 471.Google Scholar
Herbst, W. and Rajan, R.S.: 1979a, Carnegie Yearbook '78, in press.Google Scholar
Herbst, W. and Rajan, R.S.: 1979b, in preparation.Google Scholar
Herbst, W. and Warner, J.W.: 1979, in preparation.Google Scholar
Kutner, M.L., Dickman, R.L., Tucker, K.D. and Machnik, D.E.: 1979, Astrophys. J., in press.Google Scholar
Miller, G.E. and Scalo, J.M.: 1978, Publ. Astron. Soc. Pacific 90, 506.Google Scholar
Raimond, E.: 1966, B.A.N. 18, 191.Google Scholar
Reynolds, R.J. and Ogden, P.M.: 1978, Astrophys. J. 224, 94.Google Scholar
Reynolds, R.J. and Ogden, P.M.: 1979, Astrophys. J. 229, 942.Google Scholar
Sancisi, R.: 1974, in Galactic Radio Astronomy, Kerr, F.J. and Simonson, S. C., eds. (Reidel, Dordrecht), p. 115.Google Scholar
Schramm, D.N.: 1978 in Protostars and Planets, ed. Gehrels, T. (U. of Arizona Press, Tucson), p. 384.Google Scholar
Warner, J.W., Strom, S.E. and Strom, K.M.: 1977, Astrophys. J. 213, 427.CrossRefGoogle Scholar
Warren, W.H. and Hesser, J.E.: 1977a, Astrophys. J. (Suppl.) 34, 115.CrossRefGoogle Scholar
Warren, W.H. and Hesser, J.E.: 1977b, Astrophys. J. (Suppl.) 34, 207.CrossRefGoogle Scholar
Warren, W.H. and Hesser, J.E.: 1978, Astrophys. J. (Suppl.) 36, 497.Google Scholar
Weaver, H. and Williams, D.R.W.: 1974, Astrophys. J. (Suppl.) 17, 1 Google Scholar
Woodward, P.R.: 1976, Astrophys. J. 207, 484.Google Scholar
Woodward, P.R.: 1978a, Ann. Rev. Astron. Astrophys. 16, 555.Google Scholar
Woodward, P.R.: 1978b, Proceedings of the International School of Physics «Enrico Fermi», Course no. 73, preprint,Google Scholar