EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Westerlund 1 and 2 Open Clusters Survey

Autores
Guarcello, Mario Giuseppe; Flaccomio, Ettore; Albacete Colombo, Juan Facundo; Almendros Abad, Víctor; Anastasopoulou, Konstantina; Andersen, M.; Argiroffi, C.; Bayo, Amelia; Bartlett, E.S.; Bastian, N.; De Becker, Michaël; Best, William M. J.; Bonito, R.; Borghese, Alice; Calzetti, D.; Castellanos, R.; Cecchi Pestellini, C.; Clark, J. S.; Clarke, C. J.; Zelati, Francesco Coti; Damiani, Jeremy; Drake, J.J.; Gennaro, Mario; Mapelli, M.; Martinez Galarza, J. R.; Micela, G.; Miceli, M.; Moraux, E.; Winter, A.; Wright, N. J.; Zeidler, Peter
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions among stars. Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars. The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun. Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically, the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec. Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation were carried out using the ACIS-Extract software. Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a photon flux threshold of approximately 2 × 10−8 photons cm−2 s −1 . The X-ray sources exhibit a highly concentrated spatial distribution, with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
Fil: Guarcello, Mario Giuseppe. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia
Fil: Flaccomio, Ettore. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia
Fil: Albacete Colombo, Juan Facundo. Universidad Nacional de Río Negro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Almendros Abad, Víctor. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia
Fil: Anastasopoulou, Konstantina. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia
Fil: Andersen, M.. European Southern Observatory; Alemania
Fil: Argiroffi, C.. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia. Università degli Studi di Palermo; Italia
Fil: Bayo, Amelia. European Southern Observatory; Alemania
Fil: Bartlett, E.S.. European Southern Observatory; Alemania
Fil: Bastian, N.. Donostia International Physics Center; España. Basque Foundation For Science; España. Liverpool John Moores University; Reino Unido
Fil: De Becker, Michaël. Université de Liège; Bélgica
Fil: Best, William M. J.. University of Texas at Austin; Estados Unidos
Fil: Bonito, R.. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia
Fil: Borghese, Alice. Instituto de Astrofísica de Canarias; España. Universidad de La Laguna; España
Fil: Calzetti, D.. University of Massachusetts; Estados Unidos
Fil: Castellanos, R.. Centro de Astrobiología; España. Consejo Superior de Investigaciones Científicas; España
Fil: Cecchi Pestellini, C.. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia
Fil: Clark, J. S.. The Open University; Reino Unido
Fil: Clarke, C. J.. University of Cambridge; Estados Unidos
Fil: Zelati, Francesco Coti. Instituto de Estudios Espaciales de Cataluña; España. Consejo Superior de Investigaciones Científicas; España
Fil: Damiani, Jeremy. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia
Fil: Drake, J.J.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Gennaro, Mario. Space Telescope Science Institute; Estados Unidos. University Johns Hopkins; Estados Unidos
Fil: Mapelli, M.. Università di Padova; Italia. Ruprecht Karls Universitat Heidelberg; Alemania
Fil: Martinez Galarza, J. R.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Micela, G.. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia
Fil: Miceli, M.. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia. Università degli Studi di Palermo; Italia
Fil: Moraux, E.. Universite Grenoble Alpes; Francia
Fil: Winter, A.. Observatoire de la Côte D'azur; Francia. Universite Grenoble Alpes; Francia
Fil: Wright, N. J.. Keele University; Reino Unido
Fil: Zeidler, Peter. European Southern Observatory; Alemania. Space Telescope Science Institute; Estados Unidos
Materia
OPEN CLUSTERS AND ASSOCIATIONS: INDIVIDUAL: WESTERLUND 1
STARS: FORMATION
STARS: LOW-MASS
STARS: MASSIVE
STARS: WOLF-RAYET
X-RAYS: STARS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/240691

id CONICETDig_d5a76ddfb3e259a5cc4c6dfe014218cb
oai_identifier_str oai:ri.conicet.gov.ar:11336/240691
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Westerlund 1 and 2 Open Clusters SurveyGuarcello, Mario GiuseppeFlaccomio, EttoreAlbacete Colombo, Juan FacundoAlmendros Abad, VíctorAnastasopoulou, KonstantinaAndersen, M.Argiroffi, C.Bayo, AmeliaBartlett, E.S.Bastian, N.De Becker, MichaëlBest, William M. J.Bonito, R.Borghese, AliceCalzetti, D.Castellanos, R.Cecchi Pestellini, C.Clark, J. S.Clarke, C. J.Zelati, Francesco CotiDamiani, JeremyDrake, J.J.Gennaro, MarioMapelli, M.Martinez Galarza, J. R.Micela, G.Miceli, M.Moraux, E.Winter, A.Wright, N. J.Zeidler, PeterOPEN CLUSTERS AND ASSOCIATIONS: INDIVIDUAL: WESTERLUND 1STARS: FORMATIONSTARS: LOW-MASSSTARS: MASSIVESTARS: WOLF-RAYETX-RAYS: STARShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions among stars. Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars. The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun. Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically, the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec. Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation were carried out using the ACIS-Extract software. Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a photon flux threshold of approximately 2 × 10−8 photons cm−2 s −1 . The X-ray sources exhibit a highly concentrated spatial distribution, with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.Fil: Guarcello, Mario Giuseppe. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; ItaliaFil: Flaccomio, Ettore. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; ItaliaFil: Albacete Colombo, Juan Facundo. Universidad Nacional de Río Negro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Almendros Abad, Víctor. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; ItaliaFil: Anastasopoulou, Konstantina. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; ItaliaFil: Andersen, M.. European Southern Observatory; AlemaniaFil: Argiroffi, C.. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia. Università degli Studi di Palermo; ItaliaFil: Bayo, Amelia. European Southern Observatory; AlemaniaFil: Bartlett, E.S.. European Southern Observatory; AlemaniaFil: Bastian, N.. Donostia International Physics Center; España. Basque Foundation For Science; España. Liverpool John Moores University; Reino UnidoFil: De Becker, Michaël. Université de Liège; BélgicaFil: Best, William M. J.. University of Texas at Austin; Estados UnidosFil: Bonito, R.. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; ItaliaFil: Borghese, Alice. Instituto de Astrofísica de Canarias; España. Universidad de La Laguna; EspañaFil: Calzetti, D.. University of Massachusetts; Estados UnidosFil: Castellanos, R.. Centro de Astrobiología; España. Consejo Superior de Investigaciones Científicas; EspañaFil: Cecchi Pestellini, C.. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; ItaliaFil: Clark, J. S.. The Open University; Reino UnidoFil: Clarke, C. J.. University of Cambridge; Estados UnidosFil: Zelati, Francesco Coti. Instituto de Estudios Espaciales de Cataluña; España. Consejo Superior de Investigaciones Científicas; EspañaFil: Damiani, Jeremy. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; ItaliaFil: Drake, J.J.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Gennaro, Mario. Space Telescope Science Institute; Estados Unidos. University Johns Hopkins; Estados UnidosFil: Mapelli, M.. Università di Padova; Italia. Ruprecht Karls Universitat Heidelberg; AlemaniaFil: Martinez Galarza, J. R.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Micela, G.. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; ItaliaFil: Miceli, M.. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia. Università degli Studi di Palermo; ItaliaFil: Moraux, E.. Universite Grenoble Alpes; FranciaFil: Winter, A.. Observatoire de la Côte D'azur; Francia. Universite Grenoble Alpes; FranciaFil: Wright, N. J.. Keele University; Reino UnidoFil: Zeidler, Peter. European Southern Observatory; Alemania. Space Telescope Science Institute; Estados UnidosEDP Sciences2024-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/240691Guarcello, Mario Giuseppe; Flaccomio, Ettore; Albacete Colombo, Juan Facundo; Almendros Abad, Víctor; Anastasopoulou, Konstantina; et al.; EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Westerlund 1 and 2 Open Clusters Survey; EDP Sciences; Astronomy and Astrophysics; 682; A49; 2-2024; 1-220004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202347778info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/full_html/2024/02/aa47778-23/aa47778-23.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:00:50Zoai:ri.conicet.gov.ar:11336/240691instacron: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:34982025-09-10 13:00:51.185CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Westerlund 1 and 2 Open Clusters Survey
title EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Westerlund 1 and 2 Open Clusters Survey
spellingShingle EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Westerlund 1 and 2 Open Clusters Survey
Guarcello, Mario Giuseppe
OPEN CLUSTERS AND ASSOCIATIONS: INDIVIDUAL: WESTERLUND 1
STARS: FORMATION
STARS: LOW-MASS
STARS: MASSIVE
STARS: WOLF-RAYET
X-RAYS: STARS
title_short EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Westerlund 1 and 2 Open Clusters Survey
title_full EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Westerlund 1 and 2 Open Clusters Survey
title_fullStr EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Westerlund 1 and 2 Open Clusters Survey
title_full_unstemmed EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Westerlund 1 and 2 Open Clusters Survey
title_sort EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Westerlund 1 and 2 Open Clusters Survey
dc.creator.none.fl_str_mv Guarcello, Mario Giuseppe
Flaccomio, Ettore
Albacete Colombo, Juan Facundo
Almendros Abad, Víctor
Anastasopoulou, Konstantina
Andersen, M.
Argiroffi, C.
Bayo, Amelia
Bartlett, E.S.
Bastian, N.
De Becker, Michaël
Best, William M. J.
Bonito, R.
Borghese, Alice
Calzetti, D.
Castellanos, R.
Cecchi Pestellini, C.
Clark, J. S.
Clarke, C. J.
Zelati, Francesco Coti
Damiani, Jeremy
Drake, J.J.
Gennaro, Mario
Mapelli, M.
Martinez Galarza, J. R.
Micela, G.
Miceli, M.
Moraux, E.
Winter, A.
Wright, N. J.
Zeidler, Peter
author Guarcello, Mario Giuseppe
author_facet Guarcello, Mario Giuseppe
Flaccomio, Ettore
Albacete Colombo, Juan Facundo
Almendros Abad, Víctor
Anastasopoulou, Konstantina
Andersen, M.
Argiroffi, C.
Bayo, Amelia
Bartlett, E.S.
Bastian, N.
De Becker, Michaël
Best, William M. J.
Bonito, R.
Borghese, Alice
Calzetti, D.
Castellanos, R.
Cecchi Pestellini, C.
Clark, J. S.
Clarke, C. J.
Zelati, Francesco Coti
Damiani, Jeremy
Drake, J.J.
Gennaro, Mario
Mapelli, M.
Martinez Galarza, J. R.
Micela, G.
Miceli, M.
Moraux, E.
Winter, A.
Wright, N. J.
Zeidler, Peter
author_role author
author2 Flaccomio, Ettore
Albacete Colombo, Juan Facundo
Almendros Abad, Víctor
Anastasopoulou, Konstantina
Andersen, M.
Argiroffi, C.
Bayo, Amelia
Bartlett, E.S.
Bastian, N.
De Becker, Michaël
Best, William M. J.
Bonito, R.
Borghese, Alice
Calzetti, D.
Castellanos, R.
Cecchi Pestellini, C.
Clark, J. S.
Clarke, C. J.
Zelati, Francesco Coti
Damiani, Jeremy
Drake, J.J.
Gennaro, Mario
Mapelli, M.
Martinez Galarza, J. R.
Micela, G.
Miceli, M.
Moraux, E.
Winter, A.
Wright, N. J.
Zeidler, Peter
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
dc.subject.none.fl_str_mv OPEN CLUSTERS AND ASSOCIATIONS: INDIVIDUAL: WESTERLUND 1
STARS: FORMATION
STARS: LOW-MASS
STARS: MASSIVE
STARS: WOLF-RAYET
X-RAYS: STARS
topic OPEN CLUSTERS AND ASSOCIATIONS: INDIVIDUAL: WESTERLUND 1
STARS: FORMATION
STARS: LOW-MASS
STARS: MASSIVE
STARS: WOLF-RAYET
X-RAYS: STARS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions among stars. Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars. The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun. Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically, the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec. Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation were carried out using the ACIS-Extract software. Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a photon flux threshold of approximately 2 × 10−8 photons cm−2 s −1 . The X-ray sources exhibit a highly concentrated spatial distribution, with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
Fil: Guarcello, Mario Giuseppe. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia
Fil: Flaccomio, Ettore. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia
Fil: Albacete Colombo, Juan Facundo. Universidad Nacional de Río Negro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Almendros Abad, Víctor. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia
Fil: Anastasopoulou, Konstantina. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia
Fil: Andersen, M.. European Southern Observatory; Alemania
Fil: Argiroffi, C.. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia. Università degli Studi di Palermo; Italia
Fil: Bayo, Amelia. European Southern Observatory; Alemania
Fil: Bartlett, E.S.. European Southern Observatory; Alemania
Fil: Bastian, N.. Donostia International Physics Center; España. Basque Foundation For Science; España. Liverpool John Moores University; Reino Unido
Fil: De Becker, Michaël. Université de Liège; Bélgica
Fil: Best, William M. J.. University of Texas at Austin; Estados Unidos
Fil: Bonito, R.. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia
Fil: Borghese, Alice. Instituto de Astrofísica de Canarias; España. Universidad de La Laguna; España
Fil: Calzetti, D.. University of Massachusetts; Estados Unidos
Fil: Castellanos, R.. Centro de Astrobiología; España. Consejo Superior de Investigaciones Científicas; España
Fil: Cecchi Pestellini, C.. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia
Fil: Clark, J. S.. The Open University; Reino Unido
Fil: Clarke, C. J.. University of Cambridge; Estados Unidos
Fil: Zelati, Francesco Coti. Instituto de Estudios Espaciales de Cataluña; España. Consejo Superior de Investigaciones Científicas; España
Fil: Damiani, Jeremy. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia
Fil: Drake, J.J.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Gennaro, Mario. Space Telescope Science Institute; Estados Unidos. University Johns Hopkins; Estados Unidos
Fil: Mapelli, M.. Università di Padova; Italia. Ruprecht Karls Universitat Heidelberg; Alemania
Fil: Martinez Galarza, J. R.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Micela, G.. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia
Fil: Miceli, M.. Istituto Nazionale di Astrofísica. Osservatorio Astronómico di Palermo; Italia. Università degli Studi di Palermo; Italia
Fil: Moraux, E.. Universite Grenoble Alpes; Francia
Fil: Winter, A.. Observatoire de la Côte D'azur; Francia. Universite Grenoble Alpes; Francia
Fil: Wright, N. J.. Keele University; Reino Unido
Fil: Zeidler, Peter. European Southern Observatory; Alemania. Space Telescope Science Institute; Estados Unidos
description Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions among stars. Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars. The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun. Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically, the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec. Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation were carried out using the ACIS-Extract software. Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a photon flux threshold of approximately 2 × 10−8 photons cm−2 s −1 . The X-ray sources exhibit a highly concentrated spatial distribution, with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
publishDate 2024
dc.date.none.fl_str_mv 2024-02
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/11336/240691
Guarcello, Mario Giuseppe; Flaccomio, Ettore; Albacete Colombo, Juan Facundo; Almendros Abad, Víctor; Anastasopoulou, Konstantina; et al.; EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Westerlund 1 and 2 Open Clusters Survey; EDP Sciences; Astronomy and Astrophysics; 682; A49; 2-2024; 1-22
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/240691
identifier_str_mv Guarcello, Mario Giuseppe; Flaccomio, Ettore; Albacete Colombo, Juan Facundo; Almendros Abad, Víctor; Anastasopoulou, Konstantina; et al.; EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Westerlund 1 and 2 Open Clusters Survey; EDP Sciences; Astronomy and Astrophysics; 682; A49; 2-2024; 1-22
0004-6361
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202347778
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/full_html/2024/02/aa47778-23/aa47778-23.html
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
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
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_ 1842979909325029376
score 12.48226