The structure of a recent nova shell as observed by ALMA

Detalhes bibliográficos
Autor(a) principal: Diaz, Marcos
Data de Publicação: 2018
Outros Autores: Abraham, Zulema, Ribeiro, Valério A. R. M., Beaklini, Pedro P. B., Takeda, Larissa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10773/24006
Resumo: High resolution ALMA observations of the recent (2.52 yr old) shell of Nova V5668 Sgr (2015) show a highly structured ionized gas distribution with small (10^15 cm) clumps. These are the smallest structures ever observed in the remnant of a stellar thermonuclear explosion. No extended contiguous emission could be found above the 2.5σ level in our data, while the peak hydrogen densities in the clumps reach 10^6 cm^−3. The millimetre continuum image suggests that large scale structures previously distinguished in other recent nova shells may result from the distribution of bright unresolved condensations.
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spelling The structure of a recent nova shell as observed by ALMAStars: novaeCataclysmic variablesStars: white dwarfsRadio continuum: starsHigh resolution ALMA observations of the recent (2.52 yr old) shell of Nova V5668 Sgr (2015) show a highly structured ionized gas distribution with small (10^15 cm) clumps. These are the smallest structures ever observed in the remnant of a stellar thermonuclear explosion. No extended contiguous emission could be found above the 2.5σ level in our data, while the peak hydrogen densities in the clumps reach 10^6 cm^−3. The millimetre continuum image suggests that large scale structures previously distinguished in other recent nova shells may result from the distribution of bright unresolved condensations.Oxford University Press2018-09-04T14:17:32Z2018-06-30T00:00:00Z2018-06-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/24006eng1745-392510.1093/mnrasl/sly121Diaz, MarcosAbraham, ZulemaRibeiro, Valério A. R. M.Beaklini, Pedro P. B.Takeda, Larissainfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:47:13Zoai:ria.ua.pt:10773/24006Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:57:49.930740Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv The structure of a recent nova shell as observed by ALMA
title The structure of a recent nova shell as observed by ALMA
spellingShingle The structure of a recent nova shell as observed by ALMA
Diaz, Marcos
Stars: novae
Cataclysmic variables
Stars: white dwarfs
Radio continuum: stars
title_short The structure of a recent nova shell as observed by ALMA
title_full The structure of a recent nova shell as observed by ALMA
title_fullStr The structure of a recent nova shell as observed by ALMA
title_full_unstemmed The structure of a recent nova shell as observed by ALMA
title_sort The structure of a recent nova shell as observed by ALMA
author Diaz, Marcos
author_facet Diaz, Marcos
Abraham, Zulema
Ribeiro, Valério A. R. M.
Beaklini, Pedro P. B.
Takeda, Larissa
author_role author
author2 Abraham, Zulema
Ribeiro, Valério A. R. M.
Beaklini, Pedro P. B.
Takeda, Larissa
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Diaz, Marcos
Abraham, Zulema
Ribeiro, Valério A. R. M.
Beaklini, Pedro P. B.
Takeda, Larissa
dc.subject.por.fl_str_mv Stars: novae
Cataclysmic variables
Stars: white dwarfs
Radio continuum: stars
topic Stars: novae
Cataclysmic variables
Stars: white dwarfs
Radio continuum: stars
description High resolution ALMA observations of the recent (2.52 yr old) shell of Nova V5668 Sgr (2015) show a highly structured ionized gas distribution with small (10^15 cm) clumps. These are the smallest structures ever observed in the remnant of a stellar thermonuclear explosion. No extended contiguous emission could be found above the 2.5σ level in our data, while the peak hydrogen densities in the clumps reach 10^6 cm^−3. The millimetre continuum image suggests that large scale structures previously distinguished in other recent nova shells may result from the distribution of bright unresolved condensations.
publishDate 2018
dc.date.none.fl_str_mv 2018-09-04T14:17:32Z
2018-06-30T00:00:00Z
2018-06-30
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10773/24006
url http://hdl.handle.net/10773/24006
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1745-3925
10.1093/mnrasl/sly121
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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