Emirical calibration for helium abundance determinations in active galactic nuclei
- Autores
- Dors, Oli L.; Almeida Gouvea, Celine; Oliveira, C. B.; Flury, S. R.; Riffel, Romina Elisabet; Riffel, R. A.; Cardaci, Monica Viviana; Hägele, Guillermo Federico; Ilha, G. S.; Krabbe, A. C.; Arellano Córdova, K. Z.; Santos, P. C.; Morais, I. N.
- Año de publicación
- 2024
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- For the first time, a calibration between the He I λ5876/Hβ emission line ratio and the helium abundance y = 12 + log(He/H) for Narrow line regions of Seyfert 2 Active Galactic Nuclei is proposed. In this context, observational data (taken from the SDSS-DR15 and from the literature) and direct abundance estimates (via the Te-method) for a sample of 65 local ( z<0.2 ) Seyfert 2 nuclei are considered. The resulting calibration estimates the y abundance with an average uncertainty of 0.02 dex. Applying our calibration to spectroscopic data containing only strong emission lines, it yields a helium abundance distribution similar to that obtained via the Te-method. Some cautions must be considered to apply our calibration for Seyfert 2 nuclei with high values of electron temperature (≳20000K) or ionization parameter ( logU > −2.0).
Fil: Dors, Oli L.. Universidade Do Vale Do Paraíba; Brasil
Fil: Almeida Gouvea, Celine. Universidade Do Vale Do Paraíba; Brasil
Fil: Oliveira, C. B.. Universidade Do Vale Do Paraíba; Brasil
Fil: Flury, S. R.. University of Massachusetts Amherst; Estados Unidos
Fil: Riffel, Romina Elisabet. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Riffel, R. A.. Universidade Federal de Santa Maria; Brasil
Fil: Cardaci, Monica Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Hägele, Guillermo Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Ilha, G. S.. Universidade do Sao Paulo. Instituto de Astronomia, Geofísica e Ciências Atmosféricas; Brasil. Universidade de Sao Paulo; Brasil
Fil: Krabbe, A. C.. Universidade do Sao Paulo. Instituto de Astronomia, Geofísica e Ciências Atmosféricas; Brasil. Universidade de Sao Paulo; Brasil
Fil: Arellano Córdova, K. Z.. University of Edinburgh; Reino Unido
Fil: Santos, P. C.. Universidade do Vale do Paraíba; Brasil
Fil: Morais, I. N.. Universidade do Vale do Paraíba; Brasil - Materia
-
ISM: ABUNDANCES
GALAXIES: ABUNDANCES
GALAXIES: ACTIVE
GALAXIES: NUCLEI - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/245271
Ver los metadatos del registro completo
id |
CONICETDig_10b43d691c966e65cd9e621fc91609d7 |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/245271 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
Emirical calibration for helium abundance determinations in active galactic nucleiDors, Oli L.Almeida Gouvea, CelineOliveira, C. B.Flury, S. R.Riffel, Romina ElisabetRiffel, R. A.Cardaci, Monica VivianaHägele, Guillermo FedericoIlha, G. S.Krabbe, A. C.Arellano Córdova, K. Z.Santos, P. C.Morais, I. N.ISM: ABUNDANCESGALAXIES: ABUNDANCESGALAXIES: ACTIVEGALAXIES: NUCLEIhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1For the first time, a calibration between the He I λ5876/Hβ emission line ratio and the helium abundance y = 12 + log(He/H) for Narrow line regions of Seyfert 2 Active Galactic Nuclei is proposed. In this context, observational data (taken from the SDSS-DR15 and from the literature) and direct abundance estimates (via the Te-method) for a sample of 65 local ( z<0.2 ) Seyfert 2 nuclei are considered. The resulting calibration estimates the y abundance with an average uncertainty of 0.02 dex. Applying our calibration to spectroscopic data containing only strong emission lines, it yields a helium abundance distribution similar to that obtained via the Te-method. Some cautions must be considered to apply our calibration for Seyfert 2 nuclei with high values of electron temperature (≳20000K) or ionization parameter ( logU > −2.0).Fil: Dors, Oli L.. Universidade Do Vale Do Paraíba; BrasilFil: Almeida Gouvea, Celine. Universidade Do Vale Do Paraíba; BrasilFil: Oliveira, C. B.. Universidade Do Vale Do Paraíba; BrasilFil: Flury, S. R.. University of Massachusetts Amherst; Estados UnidosFil: Riffel, Romina Elisabet. Universidade Federal do Rio Grande do Sul; BrasilFil: Riffel, R. A.. Universidade Federal de Santa Maria; BrasilFil: Cardaci, Monica Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Hägele, Guillermo Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Ilha, G. S.. Universidade do Sao Paulo. Instituto de Astronomia, Geofísica e Ciências Atmosféricas; Brasil. Universidade de Sao Paulo; BrasilFil: Krabbe, A. C.. Universidade do Sao Paulo. Instituto de Astronomia, Geofísica e Ciências Atmosféricas; Brasil. Universidade de Sao Paulo; BrasilFil: Arellano Córdova, K. Z.. University of Edinburgh; Reino UnidoFil: Santos, P. C.. Universidade do Vale do Paraíba; BrasilFil: Morais, I. N.. Universidade do Vale do Paraíba; BrasilWiley Blackwell Publishing, Inc2024-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/245271Dors, Oli L.; Almeida Gouvea, Celine; Oliveira, C. B.; Flury, S. R.; Riffel, Romina Elisabet; et al.; Emirical calibration for helium abundance determinations in active galactic nuclei; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society. Letters; 533; 1; 9-2024; 1-51745-3925CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnrasl/article/533/1/L1/7692019info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:05:43Zoai:ri.conicet.gov.ar:11336/245271instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:05:43.868CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Emirical calibration for helium abundance determinations in active galactic nuclei |
title |
Emirical calibration for helium abundance determinations in active galactic nuclei |
spellingShingle |
Emirical calibration for helium abundance determinations in active galactic nuclei Dors, Oli L. ISM: ABUNDANCES GALAXIES: ABUNDANCES GALAXIES: ACTIVE GALAXIES: NUCLEI |
title_short |
Emirical calibration for helium abundance determinations in active galactic nuclei |
title_full |
Emirical calibration for helium abundance determinations in active galactic nuclei |
title_fullStr |
Emirical calibration for helium abundance determinations in active galactic nuclei |
title_full_unstemmed |
Emirical calibration for helium abundance determinations in active galactic nuclei |
title_sort |
Emirical calibration for helium abundance determinations in active galactic nuclei |
dc.creator.none.fl_str_mv |
Dors, Oli L. Almeida Gouvea, Celine Oliveira, C. B. Flury, S. R. Riffel, Romina Elisabet Riffel, R. A. Cardaci, Monica Viviana Hägele, Guillermo Federico Ilha, G. S. Krabbe, A. C. Arellano Córdova, K. Z. Santos, P. C. Morais, I. N. |
author |
Dors, Oli L. |
author_facet |
Dors, Oli L. Almeida Gouvea, Celine Oliveira, C. B. Flury, S. R. Riffel, Romina Elisabet Riffel, R. A. Cardaci, Monica Viviana Hägele, Guillermo Federico Ilha, G. S. Krabbe, A. C. Arellano Córdova, K. Z. Santos, P. C. Morais, I. N. |
author_role |
author |
author2 |
Almeida Gouvea, Celine Oliveira, C. B. Flury, S. R. Riffel, Romina Elisabet Riffel, R. A. Cardaci, Monica Viviana Hägele, Guillermo Federico Ilha, G. S. Krabbe, A. C. Arellano Córdova, K. Z. Santos, P. C. Morais, I. N. |
author2_role |
author author author author author author author author author author author author |
dc.subject.none.fl_str_mv |
ISM: ABUNDANCES GALAXIES: ABUNDANCES GALAXIES: ACTIVE GALAXIES: NUCLEI |
topic |
ISM: ABUNDANCES GALAXIES: ABUNDANCES GALAXIES: ACTIVE GALAXIES: NUCLEI |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
For the first time, a calibration between the He I λ5876/Hβ emission line ratio and the helium abundance y = 12 + log(He/H) for Narrow line regions of Seyfert 2 Active Galactic Nuclei is proposed. In this context, observational data (taken from the SDSS-DR15 and from the literature) and direct abundance estimates (via the Te-method) for a sample of 65 local ( z<0.2 ) Seyfert 2 nuclei are considered. The resulting calibration estimates the y abundance with an average uncertainty of 0.02 dex. Applying our calibration to spectroscopic data containing only strong emission lines, it yields a helium abundance distribution similar to that obtained via the Te-method. Some cautions must be considered to apply our calibration for Seyfert 2 nuclei with high values of electron temperature (≳20000K) or ionization parameter ( logU > −2.0). Fil: Dors, Oli L.. Universidade Do Vale Do Paraíba; Brasil Fil: Almeida Gouvea, Celine. Universidade Do Vale Do Paraíba; Brasil Fil: Oliveira, C. B.. Universidade Do Vale Do Paraíba; Brasil Fil: Flury, S. R.. University of Massachusetts Amherst; Estados Unidos Fil: Riffel, Romina Elisabet. Universidade Federal do Rio Grande do Sul; Brasil Fil: Riffel, R. A.. Universidade Federal de Santa Maria; Brasil Fil: Cardaci, Monica Viviana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina Fil: Hägele, Guillermo Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina Fil: Ilha, G. S.. Universidade do Sao Paulo. Instituto de Astronomia, Geofísica e Ciências Atmosféricas; Brasil. Universidade de Sao Paulo; Brasil Fil: Krabbe, A. C.. Universidade do Sao Paulo. Instituto de Astronomia, Geofísica e Ciências Atmosféricas; Brasil. Universidade de Sao Paulo; Brasil Fil: Arellano Córdova, K. Z.. University of Edinburgh; Reino Unido Fil: Santos, P. C.. Universidade do Vale do Paraíba; Brasil Fil: Morais, I. N.. Universidade do Vale do Paraíba; Brasil |
description |
For the first time, a calibration between the He I λ5876/Hβ emission line ratio and the helium abundance y = 12 + log(He/H) for Narrow line regions of Seyfert 2 Active Galactic Nuclei is proposed. In this context, observational data (taken from the SDSS-DR15 and from the literature) and direct abundance estimates (via the Te-method) for a sample of 65 local ( z<0.2 ) Seyfert 2 nuclei are considered. The resulting calibration estimates the y abundance with an average uncertainty of 0.02 dex. Applying our calibration to spectroscopic data containing only strong emission lines, it yields a helium abundance distribution similar to that obtained via the Te-method. Some cautions must be considered to apply our calibration for Seyfert 2 nuclei with high values of electron temperature (≳20000K) or ionization parameter ( logU > −2.0). |
publishDate |
2024 |
dc.date.none.fl_str_mv |
2024-09 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/245271 Dors, Oli L.; Almeida Gouvea, Celine; Oliveira, C. B.; Flury, S. R.; Riffel, Romina Elisabet; et al.; Emirical calibration for helium abundance determinations in active galactic nuclei; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society. Letters; 533; 1; 9-2024; 1-5 1745-3925 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/245271 |
identifier_str_mv |
Dors, Oli L.; Almeida Gouvea, Celine; Oliveira, C. B.; Flury, S. R.; Riffel, Romina Elisabet; et al.; Emirical calibration for helium abundance determinations in active galactic nuclei; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society. Letters; 533; 1; 9-2024; 1-5 1745-3925 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnrasl/article/533/1/L1/7692019 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Wiley Blackwell Publishing, Inc |
publisher.none.fl_str_mv |
Wiley Blackwell Publishing, Inc |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
_version_ |
1842269925615337472 |
score |
13.13397 |