Astrophysics and Space Science

, Volume 121, Issue 2, pp 357–385 | Cite as

Nebular complex in the region of Cas OB2 association; ring nebula Sh157

  • T. A. Lozinskaya
  • T. G. Sitnik
  • A. I. Lomovskii


This paper presents the results of monochromatic [Oiii], [Nii], and [Sii] observations of ring nebula Sh157 around the star (WR + B0III) HD 219460 belonging to the Ba 3 cluster. A stratification of radiation typical for photoionization excitation has been revealed. The observations suggest that the Sh157 ring structure may arise as a result of the HD 219460 stellar wind blowing the surroundingHii region, and the bubble age is found to bet≃(2–5)×105 yr. Three outer envelopes have been distinguished: a weaker extended emission shell apparently blown out by the wind from B-stars of the Ba 3 cluster, and two dust shells which are likely to be associated with NGC 7510 and Cas OB2. The paper is also concerned with the discussion of young star aggregates Ba 3, NGC 7510, Cas OB1, OB2, OB4, OB5, OB7, and Cep OBI and the associatedHii regions, shells and supershells of gas and dust, molecular clouds, and supernova remnants which may be probable members of a single giant stellar complex where the star formation process is in progress.


Dust Stratification Formation Process Ring Structure Star Formation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Bartla, W., Wilson, T. L., and Martin-Pintado, J.: 1983,Astron. Astrophys. 119, 139.Google Scholar
  2. Becker, W., Muller, E., and Stenlin, U.: 1955,Z. Astrophys. 38, 81.Google Scholar
  3. Becker, W. and Fenkart, R.: 1971,Astron. Astrophys. Suppl. Ser. 4, 241.Google Scholar
  4. Blitz, L., Fich, M., and Stark, A. A.: 1982,Astrophys. J. Suppl. Ser. 49, 183.Google Scholar
  5. Broten, N. W., Macleod, J. M., and Vallee, J. P.: 1985,Astrophys. Letters 24, 165.Google Scholar
  6. Chopinet, M. and Lortet-Zuckerman, M. C.: 1972,Astron. Astrophys. 18, 373.Google Scholar
  7. Chopinet, M. and Lortet-Zuckerman, M. C.: 1976,Astron. Astrophys. Suppl. Ser. 25, 179.Google Scholar
  8. Cohen, R. S., Cong, H., Dame, T. M., and Thaddeus, P.: 1980,Astrophys. J. 239, L53.Google Scholar
  9. Courtès, G., Cruvellier, P., and Georgelin, Y.: 1966,Observatory 49, 329.Google Scholar
  10. Crampton, D.: 1975,Publ. Astron. Soc. Pacific 87, 523.Google Scholar
  11. Deharveng, L.: 1974,Astron. Astrophys. 35, 63.Google Scholar
  12. De Jager, G., Graham, D. A., Wielebinski, R., Booth, R. S., and Gruber, G. M.: 1978,Astron. Astrophys. 64, 17.Google Scholar
  13. Doroshenko, V. T.: 1973, Thesis, Moscow University, Moscow.Google Scholar
  14. Dubout-Crillon, R.: 1976,Astron. Astrophys. Suppl. Ser. 25, 25.Google Scholar
  15. Efremov, Yu.: 1978,Pis'ma Astron. Zh. 4, 125.Google Scholar
  16. Efremov, Yu.: 1984,Vestn. Akad. Nauk. 12, 56.Google Scholar
  17. Ershov, A. A., Ilyasov, Yu. P., Lekht, E. E., Smirnov, A. T., Solodkov, V. T., and Sorochenko, R. L.: 1984,Pis'ma Astron. Zh. 10, 833.Google Scholar
  18. Fahlman, G. G. and Gregory, P. C.: 1983, in J. Danzinger and P. Gorenstein (eds.), ‘Supernova Remnants and Their X-Ray Emission’,IAU Symp. 101, 445.Google Scholar
  19. Falle, S. A. E. G.: 1975,Astron. Astrophys. 43, 323.Google Scholar
  20. Fenkart, R. P. and Schröder, A.: 1985,Astron. Astrophys. Suppl. Ser. 59, 83.Google Scholar
  21. Gaze, V. Ph. and Shain, G. A.: 1955,Izv. Krymsk. Astrophys. Obs. 15, 11.Google Scholar
  22. Georgelin, Y. P.: 1970,Astron. Astrophys. 7, 322.Google Scholar
  23. Georgelin, Y. P. and Georgelin, Y. M.: 1970,Astron. Astrophys. 6, 349.Google Scholar
  24. Georgelin, Y. M., Georgelin, Y. P., and Roux, S.: 1973,Astron. Astrophys. 25, 377.Google Scholar
  25. Gershberg, R. E. and Metik, L. P.: 1960,Izv. Krymsk. Astrophys. Obs. 24, 148.Google Scholar
  26. Glyshkov, Ju. L., Eroshevich, A. S., and Karyakina, Z. V.: 1972,Trudy Astrophys. Inst. Alma-Ata 19, 79.Google Scholar
  27. Gordon, C. P., Howard, III, W. E., and Westerhout, C.: 1968,Astrophys. J. 154, 103.Google Scholar
  28. Greisen, E. W.: 1973,Astrophys. J. 184, 363.Google Scholar
  29. Grubissisch, C.: 1965,Z. Astrophys. 60, 256.Google Scholar
  30. Hagen, G. L.: 1970,Publ. David Dunlap Obs. 4, 1.Google Scholar
  31. Heckathorn, J. H., Bruhweiler, F. G., and Gull, T. R.: 1982,Astrophys. J. 252, 230.Google Scholar
  32. Heiles, C.: 1979,Astrophys. J. 229, 533.Google Scholar
  33. Henbest, S. N.: 1980,Monthly Notices Roy. Astron. Soc. 190, 833.Google Scholar
  34. Hidayat, B., Supelli, K., and van der Hucht, K. A.: 1982, in C. W. H. de Loore and A. J. Willis (eds.), ‘WR Stars: Observations, Physics, Evolution’,IAU Symp. 99, 27.Google Scholar
  35. Hiltner, W. A.: 1956,Astrophys. J. Suppl. Ser. 2 24, 389.Google Scholar
  36. Hoag, A. A., Johnson, H. L., Iriarte, N., Mitchell, R. J., Hallam, K. L., and Sharpless, S.: 1961,Publ. U. S. Naval Obs. Ser. 2, 17, 7.Google Scholar
  37. Hodge, P. W.: 1983,Astrophys. J. 264, 470.Google Scholar
  38. Hughes, V. A., Harten, R. H., Costain, C. H., Nelson, L. A., and Viner, M. R.: 1984,Astrophys. J. 283, 147.Google Scholar
  39. Humphreys, R. M.: 1970,Astron. J. 75, 602.Google Scholar
  40. Humphreys, R. M.: 1978,Astrophys. J. Suppl. Ser. 38, 309.Google Scholar
  41. Israel, F. P.: 1978,Astron. Astrophys. 70, 769.Google Scholar
  42. Israel, F. P., Habing, H. J., and de Long, T.: 1973,Astron. Astrophys. 27, 143.Google Scholar
  43. Janes, K. and Adler, D.: 1982,Astrophys. J. Suppl. Ser. 49, 425.Google Scholar
  44. Kamper, K. W. and Van den Bergh, S.: 1983, in J. Danziger and P. Gorenstein (eds.), ‘Supernovae and Their X-Ray Emission’,IAU Symp. 101, 55.Google Scholar
  45. Konovalenko, A. A.: 1984,Pis'ma Astron. Zh. 10, 846.Google Scholar
  46. Lang, K. R.: 1978,Astrophysical Formulae, Springer-Verlag, Berlin.Google Scholar
  47. Lomovski, A. I. and Klement'eva, A. Yu.: 1985,Astron. Zh. (in press).Google Scholar
  48. Lozinskaya, T. A.: 1981,Pis'ma Astron. Zh. 7, 29.Google Scholar
  49. Lozinskaya, T. A., Sitnik, T. A., Toropova, M. S., and Klement'eva, A. Yu.: 1984,Pis'ma Astron. Zh. 10, 122.Google Scholar
  50. Lozinskaya, T. A., Sitnik, T. A., and Toropova, M. S.: 1986,Astron. Zh. (in press).Google Scholar
  51. Lindoff, U.: 1968,Arkiv astron. Stockholm 5, 1.Google Scholar
  52. Markarian, B. E.: 1951,Soobshch. Byurakan. Obs. Akad. Nauk Arm.. S.S.R. 9, 7, 39.Google Scholar
  53. Markert, T. H., Canizares, C. R., Clark, G. W., and Winkler, R. F.: 1983,Astrophys. J. 268, 134.Google Scholar
  54. Miller, J. S.: 1968,Astrophys. J. 151, 473.Google Scholar
  55. Milne, D. K.: 1979,Australian J. Phys. 32, 83.Google Scholar
  56. Neckel, Th. and Klare, G.: 1980,Astron. Astrophys. Suppl. Ser. 42, 251.Google Scholar
  57. Nosov, I. V.: 1979,Soviet Astron. Tsirc. 1050, 1.Google Scholar
  58. Pedlar, A.: 1980,Monthly Notices Roy. Astron. Soc. 192, 179.Google Scholar
  59. Raznik, R. M.: 1965,Izv. Krymsk. Astrophys. Obs. 24, 148.Google Scholar
  60. Reich, W. and Brausfurth, E.: 1981,Astron. Astrophys. 99, 17.Google Scholar
  61. Reinfenstein, E. C., Wilson, T. L., Burke, B. F., Mezger, P. G., and Altenhoff, W. J.: 1970,Astron. Astrophys. 4, 357.Google Scholar
  62. Sakhibov, Ph. H.: 1980,Pis'ma Astron. Zh. 6, 101.Google Scholar
  63. Shain, A. A., and Gaze, V. Ph.: 1951,Izv. Krymsk. Astrophys. Obs. 12, 93.Google Scholar
  64. Simard-Normandin, M., Kronberg, P. P., and Button, S.: 1982,Astron. Astrophys. Suppl. 48, 137.Google Scholar
  65. Sitnik, T. G. and Toropova, M. S.: 1982,Pis'ma Astron. Zh. 8, 679.Google Scholar
  66. Sitnik, T. G., Klement'eva, A. Yu., and Toropova, M. S.: 1983,Astron. Zh. 60, 503.Google Scholar
  67. Sharpless, S.: 1959,Astrophys. J. Suppl. Ser. 4, 257.Google Scholar
  68. Spoelstra, T. A. T.; 1972,Astron. Astrophys. 21, 61.Google Scholar
  69. Steigman, G., Strittmater, P. A., and Williams, R. E.: 1975,Astrophys. J. 198, 575.Google Scholar
  70. Turner, B. E.: 1979,Astron. Astrophys. Suppl. Ser. 37, 1.Google Scholar
  71. Tuye, M. A. and Lundsager, S.: 1973,A Sky Atlas of Neutral Hydrogen Emission, Carnegie Inst., Washington, No. 630.Google Scholar
  72. Van den Bergh, S.: 1983, in J. Danziger and P. Gorenstein (eds.), ‘Supernova Remnants and Their X-Ray Emission’,IAU Symp. 101, 597.Google Scholar
  73. Weaver, R., McCray, R., Castor, J., Shapiro, P., and More, R.: 1977,Astrophys. J. 218, 377.Google Scholar
  74. Westerhout, G.: 1969,Maryland-Green Bank Galactic 21-cm Line Survey (second edition).Google Scholar
  75. Wilson, W. J., Schwartz, R. P., Epsteine, E. E., Johnson, W. A., Etcheverry, R. D., Mori, T. T., Berry, A. A., and Dyson, H. B.: 1974,Astrophys. J. 191, 357.Google Scholar

Copyright information

© D. Reidel Publishing Company 1986

Authors and Affiliations

  • T. A. Lozinskaya
    • 1
  • T. G. Sitnik
    • 1
  • A. I. Lomovskii
    • 1
  1. 1.Sternberg State Astronomical InstituteMoscowU.S.S.R.

Personalised recommendations