Skip to main content Accessibility help
×
Home

Magellanic Diffuse Interstellar Bands and Carbon Chemistry

  • P. Ehrenfreund (a1), N. Cox (a2), J. Cami (a3), B.H. Foing (a4), L. Kaper (a2), L. d’Hendecourt (a5), J.P. Maier (a6), F. Salama (a3), P. Sarre (a7), T. Snow (a8) and P. Sonnentrucker (a9)...

Abstract

With the Ultraviolet Visual Echelle Spectrograph mounted at the Very Large Telescope, we have observed at unprecedented spectral resolution the absorption spectrum toward reddened stars in the Magellanic Clouds over the wavelength range of 3500-10500 Å. This range covers the strong transitions associated with neutral and charged large carbon molecules of varying sizes and structures. We report the first detection of diffuse interstellar bands (DIBs) at 5780 and 5797 Å in the Small Magellanic Cloud and the variation of those DIBs toward several targets in the Large Magellanic Cloud. The variation of DIBs in the Magellanic Clouds compared with Galactic targets may be governed by a combination of the different chemical processes prevailing in low-metallicity regions and the local environmental conditions. The analysis of high-resolution absorption spectra allows us to reveal the global effects in the chemistry and recycling of cosmic dust in the Magellanic Clouds which are relevant for the chemical pathways forming large organic molecules in external galaxies.

    • 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.

      Magellanic Diffuse Interstellar Bands and Carbon Chemistry
      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.

      Magellanic Diffuse Interstellar Bands and Carbon Chemistry
      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.

      Magellanic Diffuse Interstellar Bands and Carbon Chemistry
      Available formats
      ×

Copyright

References

Hide All
Ehrenfreund, P. & Charnley, S. 2000, ARAA, 38, 427
Ehrenfreund, P. et al. 2002, ApJ, 576, L117
Gordon, K. et al. 2003, ApJ, 594, 279
Heckmann, T.M. & Lehnert, M.D. 2000, ApJ, 537, 690
Herbig, G. 1995, ARAA, 33, 19

Magellanic Diffuse Interstellar Bands and Carbon Chemistry

  • P. Ehrenfreund (a1), N. Cox (a2), J. Cami (a3), B.H. Foing (a4), L. Kaper (a2), L. d’Hendecourt (a5), J.P. Maier (a6), F. Salama (a3), P. Sarre (a7), T. Snow (a8) and P. Sonnentrucker (a9)...

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