Detection of CH+ emission from the disc around HD 100546

Thi, Wing Fai; Ménard, François C.; Meeus, Gwendolyn; Martin-Zaïdi, C.; Woitke, Peter; Tatulli, Eric; Benisty, Myriam; Kamp, Inga; Pascucci, Ilaria; Pinte, Christophe; Grady, Carol A.; Brittain, Sean D.; White, Glenn J.; Howard, Christian D.; Sandell, Göran H L; Eiroa, Carlos

Detection of CH+ emission from the disc around HD 100546

Astronomy and Astrophysics 530 (2011): L2 Reproduced with permission from Astronomy & Astrophysics

Detalles Bibliográficos
Autores:	Thi, Wing Fai, Ménard, François C., Meeus, Gwendolyn, Martin-Zaïdi, C., Woitke, Peter, Tatulli, Eric, Benisty, Myriam, Kamp, Inga, Pascucci, Ilaria, Pinte, Christophe, Grady, Carol A., Brittain, Sean D., White, Glenn J., Howard, Christian D., Sandell, Göran H L, Eiroa, Carlos
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:10486/662190
Acceso en línea:	http://hdl.handle.net/10486/662190 https://dx.doi.org/10.1051/0004-6361/201116678
Access Level:	acceso abierto
Palabra clave:	Astrochemistry Protoplanetary disks Física

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spelling	Detection of CH+ emission from the disc around HD 100546Thi, Wing FaiMénard, François C.Meeus, GwendolynMartin-Zaïdi, C.Woitke, PeterTatulli, EricBenisty, MyriamKamp, IngaPascucci, IlariaPinte, ChristopheGrady, Carol A.Brittain, Sean D.White, Glenn J.Howard, Christian D.Sandell, Göran H LEiroa, CarlosAstrochemistryProtoplanetary disksFísicaAstronomy and Astrophysics 530 (2011): L2 Reproduced with permission from Astronomy & AstrophysicsDespite its importance in the thermal balance of the gas and in the determination of primeval planetary atmospheres, the chemistry in protoplanetary discs remains poorly constrained with only a handful of detected species. We observed the emission from the disc around the Herbig Be star HD 100546 with the PACS instrument in the spectroscopic mode on board the Herschel Space Telescope as part of the GAS in Protoplanetary Systems (GASPS) programme and used archival data from the DIGIT programme to search for the rotational emission of CH+. We detected in both datasets an emission line centred at 72.16 μm that most likely corresponds to the J = 5−4 rotational emission of CH+. The J = 3−2 and 6−5 transitions are also detected albeit with lower confidence. Other CH+ rotational lines in the PACS observations are blended with water lines. A rotational diagram analysis shows that the CH+ gas is warm at 323+2320 −151 K with a mass of ∼3×10−14−5×10−12 M_.We modelled the CH+ chemistry with the chemo-physical code ProDiMo using a disc density structure and grain parameters that match continuum observations and near- and mid-infrared interferometric data. The model suggests that CH+ is most abundant at the location of the disc rim at 10−13 AU from the star where the gas is warm, which is consistent with previous observations of hot CO gas emissionThis work is partly supported by the Spanish grant AYA 2008-01727. Also is funding from the EC 7th Framework Programme (PIEF-GA-2008-220891, PERG06- GA-2009-256513)ESODepartamento de Física TeóricaFacultad de Ciencias20112011-05-04research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/662190https://dx.doi.org/10.1051/0004-6361/201116678reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengEuropean Commission http://dx.doi.org/10.13039/501100000780 Framework Programme Seven 220891open accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/6621902026-06-23T12:46:27Z
dc.title.none.fl_str_mv	Detection of CH+ emission from the disc around HD 100546
title	Detection of CH+ emission from the disc around HD 100546
spellingShingle	Detection of CH+ emission from the disc around HD 100546 Thi, Wing Fai Astrochemistry Protoplanetary disks Física
title_short	Detection of CH+ emission from the disc around HD 100546
title_full	Detection of CH+ emission from the disc around HD 100546
title_fullStr	Detection of CH+ emission from the disc around HD 100546
title_full_unstemmed	Detection of CH+ emission from the disc around HD 100546
title_sort	Detection of CH+ emission from the disc around HD 100546
dc.creator.none.fl_str_mv	Thi, Wing Fai Ménard, François C. Meeus, Gwendolyn Martin-Zaïdi, C. Woitke, Peter Tatulli, Eric Benisty, Myriam Kamp, Inga Pascucci, Ilaria Pinte, Christophe Grady, Carol A. Brittain, Sean D. White, Glenn J. Howard, Christian D. Sandell, Göran H L Eiroa, Carlos
author	Thi, Wing Fai
author_facet	Thi, Wing Fai Ménard, François C. Meeus, Gwendolyn Martin-Zaïdi, C. Woitke, Peter Tatulli, Eric Benisty, Myriam Kamp, Inga Pascucci, Ilaria Pinte, Christophe Grady, Carol A. Brittain, Sean D. White, Glenn J. Howard, Christian D. Sandell, Göran H L Eiroa, Carlos
author_role	author
author2	Ménard, François C. Meeus, Gwendolyn Martin-Zaïdi, C. Woitke, Peter Tatulli, Eric Benisty, Myriam Kamp, Inga Pascucci, Ilaria Pinte, Christophe Grady, Carol A. Brittain, Sean D. White, Glenn J. Howard, Christian D. Sandell, Göran H L Eiroa, Carlos
author2_role	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	Astrochemistry Protoplanetary disks Física
topic	Astrochemistry Protoplanetary disks Física
description	Astronomy and Astrophysics 530 (2011): L2 Reproduced with permission from Astronomy & Astrophysics
publishDate	2011
dc.date.none.fl_str_mv	2011 2011-05-04
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
format	article
dc.identifier.none.fl_str_mv	http://hdl.handle.net/10486/662190 https://dx.doi.org/10.1051/0004-6361/201116678
url	http://hdl.handle.net/10486/662190 https://dx.doi.org/10.1051/0004-6361/201116678
dc.language.none.fl_str_mv	Inglés eng
language_invalid_str_mv	Inglés
language	eng
dc.relation.none.fl_str_mv	European Commission http://dx.doi.org/10.13039/501100000780 Framework Programme Seven 220891
dc.rights.none.fl_str_mv	open access http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv	info:eu-repo/semantics/openAccess
rights_invalid_str_mv	open access http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv	openAccess
dc.format.none.fl_str_mv	application/pdf
dc.publisher.none.fl_str_mv	ESO
publisher.none.fl_str_mv	ESO
dc.source.none.fl_str_mv	reponame:Biblos-e Archivo. Repositorio Institucional de la UAM instname:Universidad Autónoma de Madrid
instname_str	Universidad Autónoma de Madrid
reponame_str	Biblos-e Archivo. Repositorio Institucional de la UAM
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Detection of CH+ emission from the disc around HD 100546

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