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dc.contributor.author | Fuente, A. | |
dc.contributor.author | García-Burillo, S. | |
dc.contributor.author | Gerin, M. | |
dc.contributor.author | Teyssier, D. | |
dc.contributor.author | Usero, A. | |
dc.contributor.author | Rizzo Caminos, José Ricardo | |
dc.contributor.author | Vicente, P. de | |
dc.date.accessioned | 2016-08-03T10:52:17Z | |
dc.date.available | 2016-08-03T10:52:17Z | |
dc.date.issued | 2005 | |
dc.identifier.citation | Fuente, A., García-Burillo, S., Gerin, M., Teyssier, D., Usero, A., Rizzo, J. R., & De Vicente, P. (2005). Photon-dominated chemistry in the nucleus of M82: widespread HOC + emission in the inner 650 parsec disk. Astrophysical Journal, 619(2), L155–L158. DOI: 10.1086/427990 | spa |
dc.identifier.issn | 0004637X | |
dc.identifier.issn | 15384357 | |
dc.identifier.uri | http://hdl.handle.net/11268/5539 | |
dc.description.abstract | The nucleus of M82 has been mapped in several 3 and 1 mm lines of CN, HCN, C2H, c-C3H2, CH3C2H, HC3N, and HOC using the IRAM 30 m telescope. These species have been purposely selected as good tracers of photon-dominated chemistry. We have measured [CN]/[HCN] ∼ 5 in the inner 650 pc galaxy disk. Furthermore, we have detected the HOC 1 r 0 line with an intensity similar to that of the H13CO 1 r 0 line. This implies an [HCO ]/[HOC ] ratio of ∼40. These results corroborate the existence of a giant photodissociation region (PDR) in the nucleus of M82. In fact, the low [HCO ]/[HOC ] ratio can only be explained if the nucleus of M82 is formed by small (r ! 0.02–0.2 pc) and dense (n ∼ a few times 104–105 cm 3) clouds immersed in an intense UV field ( in units of the Habing field). The detection of the hydrocarbons c-C3H2 and CH3C2G ∼ 104 H 0 in the nucleus of M82 suggests that a complex carbon chemistry is developing in this giant PDR. | spa |
dc.description.sponsorship | Ministerio de Ciencia y Tecnología DGES/AYA2000-927, ESP2001-4519-PE, ESP2002-01693, AYA2002-01241 y AYA2003-06473 | spa |
dc.language.iso | eng | spa |
dc.title | Photon-dominated chemistry in the nucleus of M82: widespread HOC + emission in the inner 650 parsec disk | spa |
dc.type | article | spa |
dc.description.impact | 6.308 JCR (2005) Q1, 5/46 Astronomy & astrophysics | spa |
dc.identifier.doi | 10.1086/427990 | spa |
dc.rights.accessRights | openAccess | spa |
dc.subject.uem | Astrofísica | spa |
dc.subject.uem | Astronomía | spa |
dc.subject.unesco | Astrofísica | spa |
dc.subject.unesco | Astronomía | spa |
dc.description.filiation | UEM | spa |
dc.relation.publisherversion | http://iopscience.iop.org/article/10.1086/427990/pdf | spa |
dc.peerreviewed | Si | spa |