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Multi-Wavelength Study of the Giant Bubble in Cepheus

Published online by Cambridge University Press:  25 May 2016

L.G. Balázs  and
P. Ábrahám
L.G. Balázs
Affiliation:
Konkoly Observatory, Budapest Box 67, H-1525, Hungary
P. Ábrahám
Affiliation:
Konkoly Observatory, Budapest Box 67, H-1525, Hungary

Extract

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The giant bubble in Cepheus was discovered by Kun et al. (1987) in the IRAS maps. It has an angular diameter of about 9° and connects several well-known star forming regions such as IC1396, S140, NGC7129. All these regions have nearly the same distances of about 800 pc permitting a good distance and linear size estimate for the bubble. Figure 1 shows the surface distribution of IRAS 100 μ optical depths, obtained from the 60 and 100 μ data and smoothed to the resolution of the HI survey. Although the bubble was discovered in the IRAS data base it is well pronounced in the integrated HI map obtained from the observations of Heiles & Habing (1974) and Weaver & Williams (1973). Figure 2 shows the HI line area map.

Type
Chapter 7: How are we to Understand the Small Scale Structure of the ISM?
Information
Symposium - International Astronomical Union , Volume 169: Unsolved Problems of the Milky Way , 1996 , pp. 623 - 624
Copyright
Copyright © Kluwer 1996 

References

Heiles, C., Habing, H.J. 1974, A&AS 14, 1 Google Scholar
Kun, M., Balázs, L.G., Tóth, I. 1987, Aph. & Sp. Sc., 134, 211 Google Scholar
Murtagh, F., Heck, A. 1987, ‘Multivariate Data Analysis’, Astrophys. Space Sci. Lib. , 131. D. Reidel Publ. Co. Google Scholar
Weaver, H., Williams, D.R.W. 1973, A&AS 8, 1 Google Scholar