SPLUS J142445.34–254247.1: an r-process–enhanced, actinide-boost, extremely metal-poor star observed with GHOST
- Autores
- Placco, Vinicius M.; Almeida Fernandes, Felipe; Holmbeck, Erika M.; Roederer, Ian U.; Mardini, Mohammad K.; Hayes, Christian R.; Venn, Kim; Chiboucas, Kristin; Deibert, Emily; Gamen, Roberto Claudio; Heo, Jeong Eun; Jeong, Miji; Kalari, Venu; Martioli, Eder; Xu, Siyi; Diaz, Ruben; Gomez Jimenez, Manuel; Henderson, David; Prado, Pablo; Quiroz, Carlos; Ruiz Carmona, Roque; Simpson, Chris; Urrutia, Cristian; McConnachie, Alan W.; Pazder, John; Burley, Gregory; Ireland, Michael J.; Waller, Fletcher; Berg, Trystyn A. M.; Robertson, J. Gordon; Hartman, Zachary; Jones, David O.; Labrie, Kathleen; Perez, Gabriel; Ridgway, Susan; Thomas-Osip, Joanna
- Año de publicación
- 2023
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We report on a chemo-dynamical analysis of SPLUS J142445.34−254247.1 (SPLUS J1424−2542), an extremely metal-poor halo star enhanced in elements formed by the rapid neutron-capture process (r-process). This star was first selected as a metal-poor candidate from its narrowband S-PLUS photometry and followed up spectroscopically in medium resolution with Gemini-South/GMOS, which confirmed its low-metallicity status. High-resolution spectroscopy was gathered with GHOST at Gemini-South, allowing for the determination of the chemical abundances for 36 elements, from carbon to thorium. At [Fe/H] = −3.39, SPLUS J1424−2542 is one of the lowestmetallicity stars with measured Th and has the highest log Th Eu ( ) observed to date, making it part of the “actinideboost” category of r-process–enhanced stars. The analysis presented here suggests that the gas cloud from which SPLUS J1424−2542 formed must have been enriched by at least two progenitor populations. The light-element (Z 30) abundance pattern is consistent with the yields from a supernova explosion of metal-free stars with 11.3– 13.4 Me, and the heavy-element (Z 38) abundance pattern can be reproduced by the yields from a neutron star merger (1.66 Me and 1.27 Me) event. A kinematical analysis also reveals that SPLUS J1424−2542 is a low-mass, old halo star with a likely in situ origin, not associated with any known early merger events in the Milky Way.
Fil: Placco, Vinicius M.. NSFʼs NOIRLab; Estados Unidos
Fil: Almeida Fernandes, Felipe. Universidade do Sao Paulo. Instituto de Astronomia, Geofísica e Ciências Atmosféricas; Brasil
Fil: Holmbeck, Erika M.. Observatories of the Carnegie Institution for Science; Estados Unidos
Fil: Roederer, Ian U.. North Carolina State University; Estados Unidos
Fil: Mardini, Mohammad K.. Zarqa University; Jordania
Fil: Hayes, Christian R.. Herzberg Astronomy And Astrophysics Research Centre; Canadá
Fil: Venn, Kim. University of Victoria; Canadá
Fil: Chiboucas, Kristin. Observatorio Gemini; Chile
Fil: Deibert, Emily. Gemini Observatory; Chile
Fil: Gamen, Roberto Claudio. 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: Heo, Jeong Eun. Gemini Observatory; Chile
Fil: Jeong, Miji. Chungnam National University; Corea del Sur
Fil: Kalari, Venu. Gemini Observatory; Chile
Fil: Martioli, Eder. Laboratório Nacional de Astrofísica; Brasil
Fil: Xu, Siyi. NSFʼs NOIRLab. Gemini Observatory; Estados Unidos
Fil: Diaz, Ruben. Gemini Observatory; Chile
Fil: Gomez Jimenez, Manuel. Gemini Observatory; Chile
Fil: Henderson, David. NSFʼs NOIRLab. Gemini Observatory; Estados Unidos
Fil: Prado, Pablo. Gemini Observatory; Chile
Fil: Quiroz, Carlos. Gemini Observatory; Chile
Fil: Ruiz Carmona, Roque. Gemini Observatory; Chile
Fil: Simpson, Chris. NSFʼs NOIRLab. Gemini Observatory; Estados Unidos
Fil: Urrutia, Cristian. Gemini Observatory; Chile
Fil: McConnachie, Alan W.. Herzberg Astronomy and Astrophysics Research Centre; Canadá
Fil: Pazder, John. Herzberg Astronomy and Astrophysics Research Centre; Canadá
Fil: Burley, Gregory. Herzberg Astronomy and Astrophysics Research Centre; Canadá
Fil: Ireland, Michael J.. Australian National University; Australia
Fil: Waller, Fletcher. University of Victoria; Canadá
Fil: Berg, Trystyn A. M.. Herzberg Astronomy and Astrophysics Research Centre; Canadá
Fil: Robertson, J. Gordon. Macquarie University; Australia
Fil: Hartman, Zachary. NSFʼs NOIRLab. Gemini Observatory; Estados Unidos
Fil: Jones, David O.. NSFʼs NOIRLab. Gemini Observatory; Estados Unidos
Fil: Labrie, Kathleen. NSFʼs NOIRLab. Gemini Observatory; Estados Unidos
Fil: Perez, Gabriel. Observatorio Gemini; Chile
Fil: Ridgway, Susan. Observatorio Gemini; Chile
Fil: Thomas-Osip, Joanna. NSFʼs NOIRLab; Estados Unidos - Materia
-
High resolution spectroscopy
Stellar atmospheres
Narrow band photometry
Chemical abundances
Metallicity - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/236874
Ver los metadatos del registro completo
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SPLUS J142445.34–254247.1: an r-process–enhanced, actinide-boost, extremely metal-poor star observed with GHOSTPlacco, Vinicius M.Almeida Fernandes, FelipeHolmbeck, Erika M.Roederer, Ian U.Mardini, Mohammad K.Hayes, Christian R.Venn, KimChiboucas, KristinDeibert, EmilyGamen, Roberto ClaudioHeo, Jeong EunJeong, MijiKalari, VenuMartioli, EderXu, SiyiDiaz, RubenGomez Jimenez, ManuelHenderson, DavidPrado, PabloQuiroz, CarlosRuiz Carmona, RoqueSimpson, ChrisUrrutia, CristianMcConnachie, Alan W.Pazder, JohnBurley, GregoryIreland, Michael J.Waller, FletcherBerg, Trystyn A. M.Robertson, J. GordonHartman, ZacharyJones, David O.Labrie, KathleenPerez, GabrielRidgway, SusanThomas-Osip, JoannaHigh resolution spectroscopyStellar atmospheresNarrow band photometryChemical abundancesMetallicityhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We report on a chemo-dynamical analysis of SPLUS J142445.34−254247.1 (SPLUS J1424−2542), an extremely metal-poor halo star enhanced in elements formed by the rapid neutron-capture process (r-process). This star was first selected as a metal-poor candidate from its narrowband S-PLUS photometry and followed up spectroscopically in medium resolution with Gemini-South/GMOS, which confirmed its low-metallicity status. High-resolution spectroscopy was gathered with GHOST at Gemini-South, allowing for the determination of the chemical abundances for 36 elements, from carbon to thorium. At [Fe/H] = −3.39, SPLUS J1424−2542 is one of the lowestmetallicity stars with measured Th and has the highest log Th Eu ( ) observed to date, making it part of the “actinideboost” category of r-process–enhanced stars. The analysis presented here suggests that the gas cloud from which SPLUS J1424−2542 formed must have been enriched by at least two progenitor populations. The light-element (Z 30) abundance pattern is consistent with the yields from a supernova explosion of metal-free stars with 11.3– 13.4 Me, and the heavy-element (Z 38) abundance pattern can be reproduced by the yields from a neutron star merger (1.66 Me and 1.27 Me) event. A kinematical analysis also reveals that SPLUS J1424−2542 is a low-mass, old halo star with a likely in situ origin, not associated with any known early merger events in the Milky Way.Fil: Placco, Vinicius M.. NSFʼs NOIRLab; Estados UnidosFil: Almeida Fernandes, Felipe. Universidade do Sao Paulo. Instituto de Astronomia, Geofísica e Ciências Atmosféricas; BrasilFil: Holmbeck, Erika M.. Observatories of the Carnegie Institution for Science; Estados UnidosFil: Roederer, Ian U.. North Carolina State University; Estados UnidosFil: Mardini, Mohammad K.. Zarqa University; JordaniaFil: Hayes, Christian R.. Herzberg Astronomy And Astrophysics Research Centre; CanadáFil: Venn, Kim. University of Victoria; CanadáFil: Chiboucas, Kristin. Observatorio Gemini; ChileFil: Deibert, Emily. Gemini Observatory; ChileFil: Gamen, Roberto Claudio. 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: Heo, Jeong Eun. Gemini Observatory; ChileFil: Jeong, Miji. Chungnam National University; Corea del SurFil: Kalari, Venu. Gemini Observatory; ChileFil: Martioli, Eder. Laboratório Nacional de Astrofísica; BrasilFil: Xu, Siyi. NSFʼs NOIRLab. Gemini Observatory; Estados UnidosFil: Diaz, Ruben. Gemini Observatory; ChileFil: Gomez Jimenez, Manuel. Gemini Observatory; ChileFil: Henderson, David. NSFʼs NOIRLab. Gemini Observatory; Estados UnidosFil: Prado, Pablo. Gemini Observatory; ChileFil: Quiroz, Carlos. Gemini Observatory; ChileFil: Ruiz Carmona, Roque. Gemini Observatory; ChileFil: Simpson, Chris. NSFʼs NOIRLab. Gemini Observatory; Estados UnidosFil: Urrutia, Cristian. Gemini Observatory; ChileFil: McConnachie, Alan W.. Herzberg Astronomy and Astrophysics Research Centre; CanadáFil: Pazder, John. Herzberg Astronomy and Astrophysics Research Centre; CanadáFil: Burley, Gregory. Herzberg Astronomy and Astrophysics Research Centre; CanadáFil: Ireland, Michael J.. Australian National University; AustraliaFil: Waller, Fletcher. University of Victoria; CanadáFil: Berg, Trystyn A. M.. Herzberg Astronomy and Astrophysics Research Centre; CanadáFil: Robertson, J. Gordon. Macquarie University; AustraliaFil: Hartman, Zachary. NSFʼs NOIRLab. Gemini Observatory; Estados UnidosFil: Jones, David O.. NSFʼs NOIRLab. Gemini Observatory; Estados UnidosFil: Labrie, Kathleen. NSFʼs NOIRLab. Gemini Observatory; Estados UnidosFil: Perez, Gabriel. Observatorio Gemini; ChileFil: Ridgway, Susan. Observatorio Gemini; ChileFil: Thomas-Osip, Joanna. NSFʼs NOIRLab; Estados UnidosIOP Publishing2023-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/236874Placco, Vinicius M.; Almeida Fernandes, Felipe; Holmbeck, Erika M.; Roederer, Ian U.; Mardini, Mohammad K.; et al.; SPLUS J142445.34–254247.1: an r-process–enhanced, actinide-boost, extremely metal-poor star observed with GHOST; IOP Publishing; Astrophysical Journal; 959; 1; 12-2023; 1-170004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/ad077einfo:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/ad077einfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-03-31T15:18:36Zoai:ri.conicet.gov.ar:11336/236874instacron: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:34982026-03-31 15:18:37.269CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
SPLUS J142445.34–254247.1: an r-process–enhanced, actinide-boost, extremely metal-poor star observed with GHOST |
| title |
SPLUS J142445.34–254247.1: an r-process–enhanced, actinide-boost, extremely metal-poor star observed with GHOST |
| spellingShingle |
SPLUS J142445.34–254247.1: an r-process–enhanced, actinide-boost, extremely metal-poor star observed with GHOST Placco, Vinicius M. High resolution spectroscopy Stellar atmospheres Narrow band photometry Chemical abundances Metallicity |
| title_short |
SPLUS J142445.34–254247.1: an r-process–enhanced, actinide-boost, extremely metal-poor star observed with GHOST |
| title_full |
SPLUS J142445.34–254247.1: an r-process–enhanced, actinide-boost, extremely metal-poor star observed with GHOST |
| title_fullStr |
SPLUS J142445.34–254247.1: an r-process–enhanced, actinide-boost, extremely metal-poor star observed with GHOST |
| title_full_unstemmed |
SPLUS J142445.34–254247.1: an r-process–enhanced, actinide-boost, extremely metal-poor star observed with GHOST |
| title_sort |
SPLUS J142445.34–254247.1: an r-process–enhanced, actinide-boost, extremely metal-poor star observed with GHOST |
| dc.creator.none.fl_str_mv |
Placco, Vinicius M. Almeida Fernandes, Felipe Holmbeck, Erika M. Roederer, Ian U. Mardini, Mohammad K. Hayes, Christian R. Venn, Kim Chiboucas, Kristin Deibert, Emily Gamen, Roberto Claudio Heo, Jeong Eun Jeong, Miji Kalari, Venu Martioli, Eder Xu, Siyi Diaz, Ruben Gomez Jimenez, Manuel Henderson, David Prado, Pablo Quiroz, Carlos Ruiz Carmona, Roque Simpson, Chris Urrutia, Cristian McConnachie, Alan W. Pazder, John Burley, Gregory Ireland, Michael J. Waller, Fletcher Berg, Trystyn A. M. Robertson, J. Gordon Hartman, Zachary Jones, David O. Labrie, Kathleen Perez, Gabriel Ridgway, Susan Thomas-Osip, Joanna |
| author |
Placco, Vinicius M. |
| author_facet |
Placco, Vinicius M. Almeida Fernandes, Felipe Holmbeck, Erika M. Roederer, Ian U. Mardini, Mohammad K. Hayes, Christian R. Venn, Kim Chiboucas, Kristin Deibert, Emily Gamen, Roberto Claudio Heo, Jeong Eun Jeong, Miji Kalari, Venu Martioli, Eder Xu, Siyi Diaz, Ruben Gomez Jimenez, Manuel Henderson, David Prado, Pablo Quiroz, Carlos Ruiz Carmona, Roque Simpson, Chris Urrutia, Cristian McConnachie, Alan W. Pazder, John Burley, Gregory Ireland, Michael J. Waller, Fletcher Berg, Trystyn A. M. Robertson, J. Gordon Hartman, Zachary Jones, David O. Labrie, Kathleen Perez, Gabriel Ridgway, Susan Thomas-Osip, Joanna |
| author_role |
author |
| author2 |
Almeida Fernandes, Felipe Holmbeck, Erika M. Roederer, Ian U. Mardini, Mohammad K. Hayes, Christian R. Venn, Kim Chiboucas, Kristin Deibert, Emily Gamen, Roberto Claudio Heo, Jeong Eun Jeong, Miji Kalari, Venu Martioli, Eder Xu, Siyi Diaz, Ruben Gomez Jimenez, Manuel Henderson, David Prado, Pablo Quiroz, Carlos Ruiz Carmona, Roque Simpson, Chris Urrutia, Cristian McConnachie, Alan W. Pazder, John Burley, Gregory Ireland, Michael J. Waller, Fletcher Berg, Trystyn A. M. Robertson, J. Gordon Hartman, Zachary Jones, David O. Labrie, Kathleen Perez, Gabriel Ridgway, Susan Thomas-Osip, Joanna |
| 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 |
| dc.subject.none.fl_str_mv |
High resolution spectroscopy Stellar atmospheres Narrow band photometry Chemical abundances Metallicity |
| topic |
High resolution spectroscopy Stellar atmospheres Narrow band photometry Chemical abundances Metallicity |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
We report on a chemo-dynamical analysis of SPLUS J142445.34−254247.1 (SPLUS J1424−2542), an extremely metal-poor halo star enhanced in elements formed by the rapid neutron-capture process (r-process). This star was first selected as a metal-poor candidate from its narrowband S-PLUS photometry and followed up spectroscopically in medium resolution with Gemini-South/GMOS, which confirmed its low-metallicity status. High-resolution spectroscopy was gathered with GHOST at Gemini-South, allowing for the determination of the chemical abundances for 36 elements, from carbon to thorium. At [Fe/H] = −3.39, SPLUS J1424−2542 is one of the lowestmetallicity stars with measured Th and has the highest log Th Eu ( ) observed to date, making it part of the “actinideboost” category of r-process–enhanced stars. The analysis presented here suggests that the gas cloud from which SPLUS J1424−2542 formed must have been enriched by at least two progenitor populations. The light-element (Z 30) abundance pattern is consistent with the yields from a supernova explosion of metal-free stars with 11.3– 13.4 Me, and the heavy-element (Z 38) abundance pattern can be reproduced by the yields from a neutron star merger (1.66 Me and 1.27 Me) event. A kinematical analysis also reveals that SPLUS J1424−2542 is a low-mass, old halo star with a likely in situ origin, not associated with any known early merger events in the Milky Way. Fil: Placco, Vinicius M.. NSFʼs NOIRLab; Estados Unidos Fil: Almeida Fernandes, Felipe. Universidade do Sao Paulo. Instituto de Astronomia, Geofísica e Ciências Atmosféricas; Brasil Fil: Holmbeck, Erika M.. Observatories of the Carnegie Institution for Science; Estados Unidos Fil: Roederer, Ian U.. North Carolina State University; Estados Unidos Fil: Mardini, Mohammad K.. Zarqa University; Jordania Fil: Hayes, Christian R.. Herzberg Astronomy And Astrophysics Research Centre; Canadá Fil: Venn, Kim. University of Victoria; Canadá Fil: Chiboucas, Kristin. Observatorio Gemini; Chile Fil: Deibert, Emily. Gemini Observatory; Chile Fil: Gamen, Roberto Claudio. 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: Heo, Jeong Eun. Gemini Observatory; Chile Fil: Jeong, Miji. Chungnam National University; Corea del Sur Fil: Kalari, Venu. Gemini Observatory; Chile Fil: Martioli, Eder. Laboratório Nacional de Astrofísica; Brasil Fil: Xu, Siyi. NSFʼs NOIRLab. Gemini Observatory; Estados Unidos Fil: Diaz, Ruben. Gemini Observatory; Chile Fil: Gomez Jimenez, Manuel. Gemini Observatory; Chile Fil: Henderson, David. NSFʼs NOIRLab. Gemini Observatory; Estados Unidos Fil: Prado, Pablo. Gemini Observatory; Chile Fil: Quiroz, Carlos. Gemini Observatory; Chile Fil: Ruiz Carmona, Roque. Gemini Observatory; Chile Fil: Simpson, Chris. NSFʼs NOIRLab. Gemini Observatory; Estados Unidos Fil: Urrutia, Cristian. Gemini Observatory; Chile Fil: McConnachie, Alan W.. Herzberg Astronomy and Astrophysics Research Centre; Canadá Fil: Pazder, John. Herzberg Astronomy and Astrophysics Research Centre; Canadá Fil: Burley, Gregory. Herzberg Astronomy and Astrophysics Research Centre; Canadá Fil: Ireland, Michael J.. Australian National University; Australia Fil: Waller, Fletcher. University of Victoria; Canadá Fil: Berg, Trystyn A. M.. Herzberg Astronomy and Astrophysics Research Centre; Canadá Fil: Robertson, J. Gordon. Macquarie University; Australia Fil: Hartman, Zachary. NSFʼs NOIRLab. Gemini Observatory; Estados Unidos Fil: Jones, David O.. NSFʼs NOIRLab. Gemini Observatory; Estados Unidos Fil: Labrie, Kathleen. NSFʼs NOIRLab. Gemini Observatory; Estados Unidos Fil: Perez, Gabriel. Observatorio Gemini; Chile Fil: Ridgway, Susan. Observatorio Gemini; Chile Fil: Thomas-Osip, Joanna. NSFʼs NOIRLab; Estados Unidos |
| description |
We report on a chemo-dynamical analysis of SPLUS J142445.34−254247.1 (SPLUS J1424−2542), an extremely metal-poor halo star enhanced in elements formed by the rapid neutron-capture process (r-process). This star was first selected as a metal-poor candidate from its narrowband S-PLUS photometry and followed up spectroscopically in medium resolution with Gemini-South/GMOS, which confirmed its low-metallicity status. High-resolution spectroscopy was gathered with GHOST at Gemini-South, allowing for the determination of the chemical abundances for 36 elements, from carbon to thorium. At [Fe/H] = −3.39, SPLUS J1424−2542 is one of the lowestmetallicity stars with measured Th and has the highest log Th Eu ( ) observed to date, making it part of the “actinideboost” category of r-process–enhanced stars. The analysis presented here suggests that the gas cloud from which SPLUS J1424−2542 formed must have been enriched by at least two progenitor populations. The light-element (Z 30) abundance pattern is consistent with the yields from a supernova explosion of metal-free stars with 11.3– 13.4 Me, and the heavy-element (Z 38) abundance pattern can be reproduced by the yields from a neutron star merger (1.66 Me and 1.27 Me) event. A kinematical analysis also reveals that SPLUS J1424−2542 is a low-mass, old halo star with a likely in situ origin, not associated with any known early merger events in the Milky Way. |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023-12 |
| 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/11336/236874 Placco, Vinicius M.; Almeida Fernandes, Felipe; Holmbeck, Erika M.; Roederer, Ian U.; Mardini, Mohammad K.; et al.; SPLUS J142445.34–254247.1: an r-process–enhanced, actinide-boost, extremely metal-poor star observed with GHOST; IOP Publishing; Astrophysical Journal; 959; 1; 12-2023; 1-17 0004-637X CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/236874 |
| identifier_str_mv |
Placco, Vinicius M.; Almeida Fernandes, Felipe; Holmbeck, Erika M.; Roederer, Ian U.; Mardini, Mohammad K.; et al.; SPLUS J142445.34–254247.1: an r-process–enhanced, actinide-boost, extremely metal-poor star observed with GHOST; IOP Publishing; Astrophysical Journal; 959; 1; 12-2023; 1-17 0004-637X CONICET Digital CONICET |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
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info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.3847/1538-4357/ad077e info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/ad077e |
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info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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openAccess |
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https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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application/pdf application/pdf |
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IOP Publishing |
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IOP Publishing |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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