Muestra la distribución de disciplinas para esta publicación.
Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.
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| Año | 2014 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
We present a sensitive search for methanol line emission in evolved stars at 1 cm, aiming to detect, for the first time, methanol masers in this type of objects. Our sample comprised post-AGB stars and young planetary nebulae (PNe), whose mass-loss processes and circumstellar structures resemble those of young stellar objects (YSOs), where methanol masers are detected. Class I masers were searched for in 73 objects, whereas Class II ones were searched in 16. No detection was obtained. The non-detection of Class I methanol masers indicated that methanol production in dust grains and/or the enhancement of its gas-phase abundance in the shocked regions of evolved objects are not as efficient as in YSOs. We suggest that relatively more evolved PNe might have a better probability of harboring Class II masers.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Gomez, Jose F. | Hombre |
CSIC - España
Instituto de Astrofísica de Andalucía - CSIC - España |
| 2 | Uscanga, Lucero | - |
Natl Astron Athens - Grecia
|
| 3 | Suarez, Olga | Mujer |
Univ Nice Sophia Antipolis - Francia
Laboratoire Joseph-Louis Lagrange - Francia |
| 4 | Rizzo, J. R. | - |
CSIR - España
Centro de Astrobiología (CSIC-INTA) - España |
| 5 | de Gregorio-Monsalvo, Itziar | Mujer |
Atacama Large Millimeter Array - Chile
ESO - Alemania Observatorio Europeo Austral - Alemania |
| Fuente |
|---|
| National Science Foundation |
| MICINN |
| FEDER funds |
| MICINN (Spain) |
| Greek General Secretariat for Research and Technology |
| Agradecimiento |
|---|
| JFG, OS, and IdG acknowledge support from MICINN (Spain) AYA2011-30228-C03 grant (including FEDER funds). L.U. acknowledges support from grant PE9-1160 of the Greek General Secretariat for Research and Technology in the framework of the program Support of Postdoctoral Researchers. JRR acknowledges support from MICINN grants CSD2009-00038, AYA2009-07304, and AYA2012-32032. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. This work is partially based on observations done at MDSCC (Robledo), under the Host Country Radio Astronomy program. Part of the data in this paper was reduced using the GILDAS software package (http://www.iram.fr/IRAMFR/GILDAS/). |