2024-03-28T21:04:57Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1554012021-06-07T09:16:53Zcom_10261_135com_10261_4col_10261_514
2017-09-21T08:23:06Z
urn:hdl:10261/155401
Spectroscopy of interstellar carbonaceous dust
Herrero, Víctor J.
Maté, Belén
Molpeceres, Germán
Jiménez-Redondo, Miguel
Tanarro, Isabel
Escribano, Rafael
European Commission
Ministerio de Economía y Competitividad (España)
Conferencia invitada ; A LABoratory spectroscopy workshop for ASTROphysics (ALABASTRO); Jaca (España); 27-30 June 2016; http://www.iem.csic.es/fismol/Alabastro/
Carbon is the fourth element by order of abundance in the Universe and it is the first of the
light elements that is exclusively formed in the interior of stars [1]. The electronic structure of
carbon allows the formation of hybridized orbitals which offer multiple bonding possibilities.
As a consequence, carbon is the element with the richest chemistry, a chemistry that leads
ultimately to the origin of life. Carbonaceous grains are among the most abundant cosmic dust components. These grains,
injected into the ISM, can influence the heating rate of gas and provide a site for
heterogeneous chemistry, allowing the formation molecules and, specifically of H2. The size
and chemical composition of carbonaceous grains changes markedly as they evolve through
the ISM. In dense clouds they can reach ¿m size and get covered by ice layers; from there,
they can grow to macroscopic sizes in the protoplanetary disk resulting from the cloud
collapse leading to star formation. Solids formed by mixtures of carbon and hydrogen can be
very complex. The size of the polyaromatic units and the proportion of aromatic to aliphatic
structures predominant in dust grains, are presently a matter of debate [5-8].
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2017-09-21T08:23:06Z
2016-06-27
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comunicación de congreso
ALABASTRO (2016)
http://hdl.handle.net/10261/155401
http://dx.doi.org/10.13039/501100003329
http://dx.doi.org/10.13039/501100000780
eng
Sí
info:eu-repo/grantAgreement/EC/FP7/610256
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/FIS2013-48087-C2-1-P
openAccess