Herschel discovery of a new class of cold, faint debris discs
Astronomy and Astrophysics 536 (2011): L4 reproduced with permission from Astronomy & Astrophysics
| Autores: | , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2011 |
| País: | España |
| Institución: | Universidad Autónoma de Madrid |
| Repositorio: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.uam.es:10486/662111 |
| Acceso en línea: | http://hdl.handle.net/10486/662111 https://dx.doi.org/10.1051/0004-6361/201117797 |
| Access Level: | acceso abierto |
| Palabra clave: | Circumstellar matter Planetary systems Stars: individual: HD 210277 (HIP 109378) Stars: individual: α men (HIP 29271) Stars: individual: HD 88230 (HIP 49908) Física |
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oai:repositorio.uam.es:10486/662111 |
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Herschel discovery of a new class of cold, faint debris discsEiroa, CarlosMarshall, Jonathan P.Mora, AlcioneKrivov, Alexander V.Absil, OlivierArdila, David R.Arévalo, María JesúsAugereau, Jean CharlesBayo, AmeliaDanchi, William C.Del Burgo, CarlosErtel, SteveFridlund, Malcolm C WGonzález-García, B. M.Heras, Ana M.Lebreton, Jean PierreLiseau, RenéMaldonado, J.Meeus, GwendolynPilbratt, Göran L.Roberge, AkiSanz-Forcada, JorgeStapelfeldt, Karl R.Thébault, PhilippeWhite, Glenn J.Wolf, SebastianMontesinos, BenjamínMontes, DavidCircumstellar matterPlanetary systemsStars: individual: HD 210277 (HIP 109378)Stars: individual: α men (HIP 29271)Stars: individual: HD 88230 (HIP 49908)FísicaAstronomy and Astrophysics 536 (2011): L4 reproduced with permission from Astronomy & AstrophysicsWe present Herschel PACS 100 and 160 μm observations of the solar-type stars α Men, HD 88230 and HD 210277, which form part of the FGK stars sample of the Herschel open time key programme (OTKP) DUNES (DUst around NEarby S tars). Our observations show small infrared excesses at 160 μm for all three stars. HD 210277 also shows a small excess at 100 μm, while the 100 μm fluxes of α Men and HD 88230 agree with the stellar photospheric predictions. We attribute these infrared excesses to a new class of cold, faint debris discs. Both α Men and HD 88230 are spatially resolved in the PACS 160 μm images, while HD 210277 is point-like at that wavelength. The projected linear sizes of the extended emission lie in the range from ∼115 to ≤250 AU. The estimated black body temperatures from the 100 and 160 μm fluxes are ≤22 K, and the fractional luminosity of the cold dust is Ldust/L_ ∼ 10−6, close to the luminosity of the solar-system’s Kuiper belt. These debris discs are the coldest and faintest discs discovered so far around mature stars, so they cannot be explained easily invoking “classical” debris disc modelsESODepartamento de Física TeóricaFacultad de Ciencias20112011-12-12research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/662111https://dx.doi.org/10.1051/0004-6361/201117797reponame: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:10486/6621112026-06-23T12:46:27Z |
| dc.title.none.fl_str_mv |
Herschel discovery of a new class of cold, faint debris discs |
| title |
Herschel discovery of a new class of cold, faint debris discs |
| spellingShingle |
Herschel discovery of a new class of cold, faint debris discs Eiroa, Carlos Circumstellar matter Planetary systems Stars: individual: HD 210277 (HIP 109378) Stars: individual: α men (HIP 29271) Stars: individual: HD 88230 (HIP 49908) Física |
| title_short |
Herschel discovery of a new class of cold, faint debris discs |
| title_full |
Herschel discovery of a new class of cold, faint debris discs |
| title_fullStr |
Herschel discovery of a new class of cold, faint debris discs |
| title_full_unstemmed |
Herschel discovery of a new class of cold, faint debris discs |
| title_sort |
Herschel discovery of a new class of cold, faint debris discs |
| dc.creator.none.fl_str_mv |
Eiroa, Carlos Marshall, Jonathan P. Mora, Alcione Krivov, Alexander V. Absil, Olivier Ardila, David R. Arévalo, María Jesús Augereau, Jean Charles Bayo, Amelia Danchi, William C. Del Burgo, Carlos Ertel, Steve Fridlund, Malcolm C W González-García, B. M. Heras, Ana M. Lebreton, Jean Pierre Liseau, René Maldonado, J. Meeus, Gwendolyn Pilbratt, Göran L. Roberge, Aki Sanz-Forcada, Jorge Stapelfeldt, Karl R. Thébault, Philippe White, Glenn J. Wolf, Sebastian Montesinos, Benjamín Montes, David |
| author |
Eiroa, Carlos |
| author_facet |
Eiroa, Carlos Marshall, Jonathan P. Mora, Alcione Krivov, Alexander V. Absil, Olivier Ardila, David R. Arévalo, María Jesús Augereau, Jean Charles Bayo, Amelia Danchi, William C. Del Burgo, Carlos Ertel, Steve Fridlund, Malcolm C W González-García, B. M. Heras, Ana M. Lebreton, Jean Pierre Liseau, René Maldonado, J. Meeus, Gwendolyn Pilbratt, Göran L. Roberge, Aki Sanz-Forcada, Jorge Stapelfeldt, Karl R. Thébault, Philippe White, Glenn J. Wolf, Sebastian Montesinos, Benjamín Montes, David |
| author_role |
author |
| author2 |
Marshall, Jonathan P. Mora, Alcione Krivov, Alexander V. Absil, Olivier Ardila, David R. Arévalo, María Jesús Augereau, Jean Charles Bayo, Amelia Danchi, William C. Del Burgo, Carlos Ertel, Steve Fridlund, Malcolm C W González-García, B. M. Heras, Ana M. Lebreton, Jean Pierre Liseau, René Maldonado, J. Meeus, Gwendolyn Pilbratt, Göran L. Roberge, Aki Sanz-Forcada, Jorge Stapelfeldt, Karl R. Thébault, Philippe White, Glenn J. Wolf, Sebastian Montesinos, Benjamín Montes, 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 |
| dc.contributor.none.fl_str_mv |
Departamento de Física Teórica Facultad de Ciencias |
| dc.subject.none.fl_str_mv |
Circumstellar matter Planetary systems Stars: individual: HD 210277 (HIP 109378) Stars: individual: α men (HIP 29271) Stars: individual: HD 88230 (HIP 49908) Física |
| topic |
Circumstellar matter Planetary systems Stars: individual: HD 210277 (HIP 109378) Stars: individual: α men (HIP 29271) Stars: individual: HD 88230 (HIP 49908) Física |
| description |
Astronomy and Astrophysics 536 (2011): L4 reproduced with permission from Astronomy & Astrophysics |
| publishDate |
2011 |
| dc.date.none.fl_str_mv |
2011 2011-12-12 |
| dc.type.none.fl_str_mv |
research article http://purl.org/coar/resource_type/c_2df8fbb1 VoR http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
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article |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10486/662111 https://dx.doi.org/10.1051/0004-6361/201117797 |
| url |
http://hdl.handle.net/10486/662111 https://dx.doi.org/10.1051/0004-6361/201117797 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 |
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info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
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ESO |
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ESO |
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reponame:Biblos-e Archivo. Repositorio Institucional de la UAM instname:Universidad Autónoma de Madrid |
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Universidad Autónoma de Madrid |
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Biblos-e Archivo. Repositorio Institucional de la UAM |
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