The Maser-emitting Structure and Time Variability of the SiS Lines J = 14-13 and 15-14 in IRC+10216
18 pags., 11 figs., 3 tabs., 2 apps.
| Autores: | , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2018 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/171190 |
| Acceso en línea: | http://hdl.handle.net/10261/171190 |
| Access Level: | acceso abierto |
| Palabra clave: | Techniques: interferometric Stars: oscillations Stars: individual (IRC+10216) Stars: AGB and post-AGB Circumstellar matter Masers |
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The Maser-emitting Structure and Time Variability of the SiS Lines J = 14-13 and 15-14 in IRC+10216Fonfría, José PabloFernández-López, ManuelPardo Carrión, Juan RamónAgúndez, MarcelinoSánchez Contreras, C.Cernicharo, JoséSantander-García, M.Quintana-Lacaci, G.Castro-Carrizo, A.Curiel, SalvadorTechniques: interferometricStars: oscillationsStars: individual (IRC+10216)Stars: AGB and post-AGBCircumstellar matterMasers18 pags., 11 figs., 3 tabs., 2 apps.We present new high angular resolution interferometer observations of the v = 0 J = 14-13 and 15-14 SiS lines toward IRC+10216, carried out with the Combined Array for Research in Millimeter-wave Astronomy and the Atacama Large Millimeter Array. The maps, with angular resolutions of ≃0.″25 and 0.″55, reveal (1) an extended, roughly uniform, and weak emission with a size of ≃0.″5; (2) a component elongated approximately along the east-west direction peaking at ≃0.″13 and 0.″17 at both sides of the central star; and (3) two blue- and redshifted compact components peaking around 0.″07 to the NW of the star. We have modeled the emission with a 3D radiation transfer code, finding that the observations cannot be explained only by thermal emission. Several maser clumps and one arc-shaped maser feature arranged from 5 to 20 from the central star, in addition to a thin shell-like maser structure at ≃13 , are required to explain the observations. This maser-emitting set of structures accounts for 75% of the total emission, while the other 25% is produced by thermally excited molecules. About 60% of the maser emission comes from the extended emission, and the rest comes from the set of clumps and the arc. The analysis of a time monitoring of these and other SiS and SiS lines carried out with the IRAM 30 m telescope from 2015 to present suggests that the intensity of some spectral components of the maser emission strongly depends on the stellar pulsation, while other components show a mild variability. This monitoring evidences a significant phase lag of ≃0.2 between the maser and near-IR light curves.During the first part of this work, J.P.F. was supported by the UNAM through a postdoctoral fellowship. J.C., M.A., L.V.P., G.Q.-L., M.S.-G., J.R.P., and J.P.F. thank the Spanish MINECO/MICINN for funding support through grants AYA2009-07304, AYA2012-32032, AYA2016-75066-C-1-P, the ASTROMOL Consolider project CSD2009-00038, and the European Research Council (ERC Grant 610256: NANOCOSMOS). M.A. also acknowledges funding support from the Ramón y Cajal program of Spanish MINECO (RyC-2014- 16277).Peer ReviewedAmerican Astronomical SocietyUniversidad Nacional Autónoma de MéxicoMinisterio de Economía y Competitividad (España)European CommissionConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2018201820182018info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/171190reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/FP7/610256info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2009-07304info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2012-32032info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2016-75066-C-1-P,https://doi.org/10.3847/1538-4357/aac5e3Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1711902026-05-22T06:33:51Z |
| dc.title.none.fl_str_mv |
The Maser-emitting Structure and Time Variability of the SiS Lines J = 14-13 and 15-14 in IRC+10216 |
| title |
The Maser-emitting Structure and Time Variability of the SiS Lines J = 14-13 and 15-14 in IRC+10216 |
| spellingShingle |
The Maser-emitting Structure and Time Variability of the SiS Lines J = 14-13 and 15-14 in IRC+10216 Fonfría, José Pablo Techniques: interferometric Stars: oscillations Stars: individual (IRC+10216) Stars: AGB and post-AGB Circumstellar matter Masers |
| title_short |
The Maser-emitting Structure and Time Variability of the SiS Lines J = 14-13 and 15-14 in IRC+10216 |
| title_full |
The Maser-emitting Structure and Time Variability of the SiS Lines J = 14-13 and 15-14 in IRC+10216 |
| title_fullStr |
The Maser-emitting Structure and Time Variability of the SiS Lines J = 14-13 and 15-14 in IRC+10216 |
| title_full_unstemmed |
The Maser-emitting Structure and Time Variability of the SiS Lines J = 14-13 and 15-14 in IRC+10216 |
| title_sort |
The Maser-emitting Structure and Time Variability of the SiS Lines J = 14-13 and 15-14 in IRC+10216 |
| dc.creator.none.fl_str_mv |
Fonfría, José Pablo Fernández-López, Manuel Pardo Carrión, Juan Ramón Agúndez, Marcelino Sánchez Contreras, C. Cernicharo, José Santander-García, M. Quintana-Lacaci, G. Castro-Carrizo, A. Curiel, Salvador |
| author |
Fonfría, José Pablo |
| author_facet |
Fonfría, José Pablo Fernández-López, Manuel Pardo Carrión, Juan Ramón Agúndez, Marcelino Sánchez Contreras, C. Cernicharo, José Santander-García, M. Quintana-Lacaci, G. Castro-Carrizo, A. Curiel, Salvador |
| author_role |
author |
| author2 |
Fernández-López, Manuel Pardo Carrión, Juan Ramón Agúndez, Marcelino Sánchez Contreras, C. Cernicharo, José Santander-García, M. Quintana-Lacaci, G. Castro-Carrizo, A. Curiel, Salvador |
| author2_role |
author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Universidad Nacional Autónoma de México Ministerio de Economía y Competitividad (España) European Commission Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Techniques: interferometric Stars: oscillations Stars: individual (IRC+10216) Stars: AGB and post-AGB Circumstellar matter Masers |
| topic |
Techniques: interferometric Stars: oscillations Stars: individual (IRC+10216) Stars: AGB and post-AGB Circumstellar matter Masers |
| description |
18 pags., 11 figs., 3 tabs., 2 apps. |
| publishDate |
2018 |
| dc.date.none.fl_str_mv |
2018 2018 2018 2018 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 Publisher's version info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10261/171190 |
| url |
http://hdl.handle.net/10261/171190 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
#PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/EC/FP7/610256 info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2009-07304 info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2012-32032 info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2016-75066-C-1-P, https://doi.org/10.3847/1538-4357/aac5e3 Sí |
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info:eu-repo/semantics/openAccess |
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openAccess |
| dc.publisher.none.fl_str_mv |
American Astronomical Society |
| publisher.none.fl_str_mv |
American Astronomical Society |
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reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC) |
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Consejo Superior de Investigaciones Científicas (CSIC) |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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