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The circumstellar medium around evolved massive stars

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dc.contributor.author Rizzo Caminos, José Ricardo
dc.contributor.author Ortiz García, Elena
dc.contributor.author Jiménez-Esteban, F. M.
dc.date.accessioned 2016-08-18T09:12:05Z
dc.date.available 2016-08-18T09:12:05Z
dc.date.issued 2005
dc.identifier.citation Rizzo, J. R., Ortiz García, E., & Jiménez-Esteban, F. M. (2005). The circumstellar medium around evolved massive stars. In Lecture Notes and Essays in Astrophysics II (pp. 179-188). spa
dc.identifier.isbn 8461152271
dc.identifier.isbn 9788461152278
dc.identifier.uri http://hdl.handle.net/11268/5631
dc.description.abstract The interplay between evolved massive stars (e.g., Of, B[e], red supergiant, luminous blue variable) and their surroundings is one of the less known issues in galactic astrophysics. In this article we report the first results of an observational campaign aiming to shed light on the evolution of the molecular gas as a consequence of massive star evolution. These results are presented in the form of maps (4′ × 4′ of maximum size), corresponding to the mm- and submm-wavclcngths transitions of CO and 13CO. Most of the observations were performed using the 10 m SMT radiotelescope at Arizona. We have detected tens of M⊙ of molecular gas, surrounding already known optical/IR nebula of ionized gas and warm dust. This molecular gas seems to be compressed in some parts, up to densitics of several 104 cm-3, probably by the action of strong and variable stellar winds and mass ejections. The CO opacity is also variable within a given field. These promising first results encourage both the study of new regions and the search for more complex molecular species in selected parts of these particular scenarios. spa
dc.description.sponsorship SIN FINANCIACIÓN spa
dc.language.iso eng spa
dc.publisher Real Sociedad Española de Física spa
dc.title The circumstellar medium around evolved massive stars spa
dc.type conferenceObject spa
dc.description.impact No data (2005) spa
dc.rights.accessRights closedAccess en
dc.subject.uem Astrofísica spa
dc.subject.uem Moléculas - Investigación spa
dc.subject.unesco Astrofísica spa
dc.subject.unesco Física molecular spa
dc.description.filiation UEM spa
dc.peerreviewed Si spa


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