Skip to main content Accessibility help
×
Home
Hostname: page-component-564cf476b6-z65vl Total loading time: 0.346 Render date: 2021-06-21T17:56:47.948Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true }

Magellanic Diffuse Interstellar Bands and Carbon Chemistry

Published online by Cambridge University Press:  30 March 2016

P. Ehrenfreund
Affiliation:
Leiden Observatory, P O Box 9513, 2300 RA Leiden, Netherlands
N. Cox
Affiliation:
Astronomical Institute “Anton Pannekoek”, University of Amsterdam, Kruislaan 403, NL-1098 SJ Amsterdam, Netherlands
J. Cami
Affiliation:
Space Science Division, NASA Ames Research Center, MS 245-3, Moffett Field, CA 94035, USA
B.H. Foing
Affiliation:
Research Support Division, ESA, ESTEC SCI-SR, 2200 AG Noordwijk, Netherlands
L. Kaper
Affiliation:
Astronomical Institute “Anton Pannekoek”, University of Amsterdam, Kruislaan 403, NL-1098 SJ Amsterdam, Netherlands
L. d’Hendecourt
Affiliation:
Institut d’Astrophysique Spatiale, Campus d’Orsay, 91405 Orsay, France
J.P. Maier
Affiliation:
Institute for Physical Chemistry, Klingelbergstrasse 80, University of Basel CH-4053, Switzerland
F. Salama
Affiliation:
Space Science Division, NASA Ames Research Center, MS 245-3, Moffett Field, CA 94035, USA
P. Sarre
Affiliation:
School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, UK
T. Snow
Affiliation:
Center for Astrophysics and Space Astronomy, University of Colorado at Boulder, 389 UCB, Boulder, CO 80309-0389, USA
P. Sonnentrucker
Affiliation:
Department of Physics and Astronomy, Johns Hopkins University, Charles and 34th Street, Bloomberg Center, Baltimore, MD 21218-2686, USA

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.

Type
I. Joint Discussions
Copyright
Copyright © Astronomical Society of Pacific 2005

References

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

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
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *