DUst around NEarby Stars. the survey observational results
Astronomy and Astrophysics 555 (2013): A11 reproduced with permission from Astronomy & Astrophysics
| Autores: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2013 |
| País: | España |
| Institución: | Universidad Autónoma de Madrid |
| Repositorio: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.uam.es:10486/662115 |
| Acceso en línea: | http://hdl.handle.net/10486/662115 https://dx.doi.org/10.1051/0004-6361/201321050 |
| Access Level: | acceso abierto |
| Palabra clave: | Circumstellar matter Infrared: stars Planetary systems Física |
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DUst around NEarby Stars. the survey observational resultsEiroa, CarlosMarshall, Jonathan P.Mora, AlcioneAbsil, OlivierAugereau, Jean CharlesBayo, AmeliaBryden, Geoffrey C.Danchi, William C.Del Burgo, CarlosErtel, SteveFridlund, Malcolm C WHeras, Ana M.Krivov, Alexander V.Launhardt, RalfLiseau, RenéLöhne, TorstenMaldonado, J.Pilbratt, Göran L.Roberge, AkiRodmann, JensSanz-Forcada, JorgeSolano, EnriqueStapelfeldt, Karl R.Thébault, PhilippeWolf, SebastianArdila, David R.Arévalo, María JesúsBeichmann, C.Faramaz, V.González-García, B. M.Gutiérrez, RaúlLebreton, Jean PierreMartínez-Arnáiz, Raquel M.Meeus, GwendolynMontes, Davíd R POlofsson, GöranSu, KateWhite, Glenn J.Fukagawa, MisatoGrün, EberhardKamp, IngaLorente, RosarioMorbidelli, AlessandroMüller, SébastienMutschke, HaraldNakagawa, TakaoRibas, IgnasiWalker, Helen J.Montesinos, BenjamínBarrado, DavidCircumstellar matterInfrared: starsPlanetary systemsFísicaAstronomy and Astrophysics 555 (2013): A11 reproduced with permission from Astronomy & AstrophysicsContext. Debris discs are a consequence of the planet formation process and constitute the fingerprints of planetesimal systems. Their solar system counterparts are the asteroid and Edgeworth-Kuiper belts. Aims. The DUNES survey aims at detecting extra-solar analogues to the Edgeworth-Kuiper belt around solar-type stars, putting in this way the solar system into context. The survey allows us to address some questions related to the prevalence and properties of planetesimal systems. Methods. We used Herschel/PACS to observe a sample of nearby FGK stars. Data at 100 and 160 μm were obtained, complemented in some cases with observations at 70 μm, and at 250, 350 and 500 μm using SPIRE. The observing strategy was to integrate as deep as possible at 100 μm to detect the stellar photosphere. Results. Debris discs have been detected at a fractional luminosity level down to several times that of the Edgeworth-Kuiper belt. The incidence rate of discs around the DUNES stars is increased from a rate of ∼12.1% ± 5% before Herschel to ∼20.2% ± 2%. A significant fraction (∼52%) of the discs are resolved, which represents an enormous step ahead from the previously known resolved discs. Some stars are associated with faint far-IR excesses attributed to a new class of cold discs. Although it cannot be excluded that these excesses are produced by coincidental alignment of background galaxies, statistical arguments suggest that at least some of them are true debris discs. Some discs display peculiar SEDs with spectral indexes in the 70–160 μm range steeper than the Rayleigh-Jeans one. An analysis of the debris disc parameters suggests that a decrease might exist of the mean black body radius from the F-type to the K-type stars. In addition, a weak trend is suggested for a correlation of disc sizes and an anticorrelation of disc temperatures with the stellar age.This work was supported by the Spanish grants AYA2008-01727 and AYA2011-26202, the Marie Curie Actions of the European Commision (FT7-COFUND), AYA2008-02038 and AYA2011-30147-C03-03ESODepartamento de Física TeóricaFacultad de Ciencias20132013-07-08research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/662115https://dx.doi.org/10.1051/0004-6361/201321050reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/6621152026-06-23T12:46:27Z |
| dc.title.none.fl_str_mv |
DUst around NEarby Stars. the survey observational results |
| title |
DUst around NEarby Stars. the survey observational results |
| spellingShingle |
DUst around NEarby Stars. the survey observational results Eiroa, Carlos Circumstellar matter Infrared: stars Planetary systems Física |
| title_short |
DUst around NEarby Stars. the survey observational results |
| title_full |
DUst around NEarby Stars. the survey observational results |
| title_fullStr |
DUst around NEarby Stars. the survey observational results |
| title_full_unstemmed |
DUst around NEarby Stars. the survey observational results |
| title_sort |
DUst around NEarby Stars. the survey observational results |
| dc.creator.none.fl_str_mv |
Eiroa, Carlos Marshall, Jonathan P. Mora, Alcione Absil, Olivier Augereau, Jean Charles Bayo, Amelia Bryden, Geoffrey C. Danchi, William C. Del Burgo, Carlos Ertel, Steve Fridlund, Malcolm C W Heras, Ana M. Krivov, Alexander V. Launhardt, Ralf Liseau, René Löhne, Torsten Maldonado, J. Pilbratt, Göran L. Roberge, Aki Rodmann, Jens Sanz-Forcada, Jorge Solano, Enrique Stapelfeldt, Karl R. Thébault, Philippe Wolf, Sebastian Ardila, David R. Arévalo, María Jesús Beichmann, C. Faramaz, V. González-García, B. M. Gutiérrez, Raúl Lebreton, Jean Pierre Martínez-Arnáiz, Raquel M. Meeus, Gwendolyn Montes, Davíd R P Olofsson, Göran Su, Kate White, Glenn J. Fukagawa, Misato Grün, Eberhard Kamp, Inga Lorente, Rosario Morbidelli, Alessandro Müller, Sébastien Mutschke, Harald Nakagawa, Takao Ribas, Ignasi Walker, Helen J. Montesinos, Benjamín Barrado, David |
| author |
Eiroa, Carlos |
| author_facet |
Eiroa, Carlos Marshall, Jonathan P. Mora, Alcione Absil, Olivier Augereau, Jean Charles Bayo, Amelia Bryden, Geoffrey C. Danchi, William C. Del Burgo, Carlos Ertel, Steve Fridlund, Malcolm C W Heras, Ana M. Krivov, Alexander V. Launhardt, Ralf Liseau, René Löhne, Torsten Maldonado, J. Pilbratt, Göran L. Roberge, Aki Rodmann, Jens Sanz-Forcada, Jorge Solano, Enrique Stapelfeldt, Karl R. Thébault, Philippe Wolf, Sebastian Ardila, David R. Arévalo, María Jesús Beichmann, C. Faramaz, V. González-García, B. M. Gutiérrez, Raúl Lebreton, Jean Pierre Martínez-Arnáiz, Raquel M. Meeus, Gwendolyn Montes, Davíd R P Olofsson, Göran Su, Kate White, Glenn J. Fukagawa, Misato Grün, Eberhard Kamp, Inga Lorente, Rosario Morbidelli, Alessandro Müller, Sébastien Mutschke, Harald Nakagawa, Takao Ribas, Ignasi Walker, Helen J. Montesinos, Benjamín Barrado, David |
| author_role |
author |
| author2 |
Marshall, Jonathan P. Mora, Alcione Absil, Olivier Augereau, Jean Charles Bayo, Amelia Bryden, Geoffrey C. Danchi, William C. Del Burgo, Carlos Ertel, Steve Fridlund, Malcolm C W Heras, Ana M. Krivov, Alexander V. Launhardt, Ralf Liseau, René Löhne, Torsten Maldonado, J. Pilbratt, Göran L. Roberge, Aki Rodmann, Jens Sanz-Forcada, Jorge Solano, Enrique Stapelfeldt, Karl R. Thébault, Philippe Wolf, Sebastian Ardila, David R. Arévalo, María Jesús Beichmann, C. Faramaz, V. González-García, B. M. Gutiérrez, Raúl Lebreton, Jean Pierre Martínez-Arnáiz, Raquel M. Meeus, Gwendolyn Montes, Davíd R P Olofsson, Göran Su, Kate White, Glenn J. Fukagawa, Misato Grün, Eberhard Kamp, Inga Lorente, Rosario Morbidelli, Alessandro Müller, Sébastien Mutschke, Harald Nakagawa, Takao Ribas, Ignasi Walker, Helen J. Montesinos, Benjamín Barrado, David |
| author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Departamento de Física Teórica Facultad de Ciencias |
| dc.subject.none.fl_str_mv |
Circumstellar matter Infrared: stars Planetary systems Física |
| topic |
Circumstellar matter Infrared: stars Planetary systems Física |
| description |
Astronomy and Astrophysics 555 (2013): A11 reproduced with permission from Astronomy & Astrophysics |
| publishDate |
2013 |
| dc.date.none.fl_str_mv |
2013 2013-07-08 |
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research article http://purl.org/coar/resource_type/c_2df8fbb1 VoR http://purl.org/coar/version/c_970fb48d4fbd8a85 |
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info:eu-repo/semantics/article |
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article |
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http://hdl.handle.net/10486/662115 https://dx.doi.org/10.1051/0004-6361/201321050 |
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http://hdl.handle.net/10486/662115 https://dx.doi.org/10.1051/0004-6361/201321050 |
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Inglés eng |
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Inglés |
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open access http://purl.org/coar/access_right/c_abf2 |
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