Skip to main content Accessibility help
×
Home

34. Interstellar Matter and Planetary Nebulae

  • D. E. Osterbrock, F. D. Kahn, L. H. Aller, R. D. Davies, J. M. Greenberg, S. B. Pike’ner and L. Rosino...

Extract

Although additional surveys with large Schmidt telescopes continue to yield small catches of additional planetaries (Kohoutek) one cannot escape the conclusion that most planetaries available to existing equipment have been detected. Much remains to be done with powerful Schmidt equipment in the southern hemisphere, especially in the Magellanic Clouds. A vast body of photometric and spectroscopic observation needs to be garnered for the numerous faint nebulae so far discovered.

Spectroscopic and spectrophotometric studies have been carried out for most bright planetaries (λ < 5800) but much remains to be done in the red and near infrared. Important advances have been made in the far infrared (~10μ) (Gillett, Low, Stein, Woolf) where a number of planetaries seem to show abnormally strong continua. This abnormally intense radiation has been attributed to non-thermal emission, effects of many faint lines, and to thermal emission by dust grains (Krishna Swamy, O’Dell) with perhaps the bulk of the evidence favoring the last-mentioned hypothesis. An increasing number of radio observations from 9·5 mm to 73 cm (Thompson, Colvin, Stanley, LeMarne, Kaftan-Kassim, Babieri and Ficarra, Terzian, L. Aller and Milne, Hughes) all indicate that planetaries are thermal sources.

    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      34. Interstellar Matter and Planetary Nebulae
      Available formats
      ×

      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

      34. Interstellar Matter and Planetary Nebulae
      Available formats
      ×

      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

      34. Interstellar Matter and Planetary Nebulae
      Available formats
      ×

Copyright

References

Hide All

In accordance with the request of the IAU Executive Committee, bibliographic references have been held to a minimum. References are given only for books, conferences and symposia, and review articles. Each of these references contain very many lists of specific papers.

Books

Middlehurst, B.M., Aller, L.H. (eds.) 1968, Nebulae and Interstellar Matter. Univ. of Chicago Press, Chicago.
Perek, L., Kohoutek, L. 1967, Catalogue of Galactic Planetary Nebulae. Academia, Prague.
Spitzer, L. 1968, Diffuse Matter in Space, Interscience Publishers, New York.
Wickramasinghe, N.C. 1967, Interstellar Grains. Chapman and Hall, Ltd., London.

Conferences, symposia, etc.

Planetary Nebulae:

Osterbrock, D.E., O’Dell, C.R. 1968, Planetary Nebulae IAU Symposium 34, D. Reidel, Dordrecht-Holland.

H II Regions:

Terzian, Y. 1968, Interstellar Ionized Hydrogen. W. A. Benjamin, Inc., New York.

Dust:

Greenberg, J.M., Roark, T.P. 1967, Interstellar Grains. NASA, Washington.

Review articles

H II Regions:

Mathews, W.G., O’Dell, C.R. 1969, A. Rev. Astr. Astrophys., 7, 67.
Osterbrock, D.E. 1967, P.A.S.P., 79, 523.

H I Regions:

Robinson, B.J., McGee, R.X. 1967, A. Rev. Astr. Astrophys., 5, 183.

Large Scale Distribution, Dynamics and Condensations:

Dieter, N.H. 1969, P.A.S.P., 81, 186.
Kerr, F.J. 1969, A. Rev. Astr. Astrophys., 7, 39.
Pikel’ner, S. B. 1968, A. Rev. Astr. Astrophys., 6, 195.

Magnetic Fields, Non-Thermal Emission:

van de Hulst, H.C. 1967, A. Rev. Astr. Astrophys., 5, 167.

Dust:

Lynds, B. T., Wickramasinghe, N.C. 1968, A. Rev. Astr. Astrophys., 6, 215.

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed