Search of Extended Objects in the Southern Sky (SExOSS) using S-PLUS DR1: photometric characterization of extragalactic sources

Autores
Haack, Rodrigo Facundo; Andruchow, Ileana; López, Iván Ezequiel; Reynaldi, María Victoria; Saponara, Juliana; Smith Castelli, Analía Viviana
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The SExOSS (Search of Extended Objects in the Southern Sky) project is planning to study a large sample of extended sources in the southern sky. Using The Southern Photometric Local Universe Survey (S-PLUS) data taken in 12 filters (5 broad + 7 narrow bands), the first step will consist to analyze the photometric relationships shown using the broandband magnitudes, and through a deeper characterization made from narrow band filters behaviour. Such a characterization could reveal the existence of new photometric relationships involving one or more of those narrow band magnitudes available in this survey. In the present work, the first results obtained are shown, on a sample of extended sources included in the first data release (DR1) of S-PLUS. This first release corresponds to the Stripe-82 sky area previously observed by the Sloan Digital Sky Survey (SDSS). For our analysis, we considered a subsample of objects that had spectra in the SDSS to be able to perform a spectroscopic classification of their internal activity (galaxies with/without star formation, active nuclei, etc.) and then searching for links between the properties shown in the narrow band photometry. The S-PLUS DR1 has more than 3 x 105 sources, of which about 3 x 104 have been found to be extended and matched in the SDSS. We present here the results obtained on a subsample selected by considering threshold values for the signtal-to-noise level in both the SDSS spectra and the magnitude value in the DR1 database, on which a blind classification of internal activity was carried out.
El proyecto SExOSS (Search of Extended Objects in the Southern Sky) planea estudiar una gran muestra de fuentes extendidas en el cielo austral. Utilizando los datos del Southern Photometric Local Universe Survey (S-PLUS) tomados en 12 filtros (5 de banda ancha + 7 de banda angosta), el primer paso consistirá en analizar las relaciones fotométricas existentes haciendo uso de las magnitudes en banda ancha, y a través de una caracterización más profunda analizando los datos en banda angosta. Dicha caracterización podría revelar la existencia de nuevas relaciones fotométricas que impliquen una o más de esas magnitudes de banda angosta disponibles en este estudio. En el presente trabajo se muestran los primeros resultados obtenidos, sobre una muestra de fuentes extendidas incluidas en la primera liberación pública de datos (DR1) del S-PLUS. Esta primera muestra corresponde a la zona del cielo conocida como Stripe-82 previamente observada por el Sloan Digital Sky Survey (SDSS). Para nuestro análisis, consideramos una submuestra de objetos para los cuales se contaba con espectros en el SDSS, de manera de poder realizar una clasificación espectroscópica (galaxias con/sin formación estelar, núcleos activos, etc.), y buscar posibles vínculos entre las magnitudes detectadas en banda angosta. El S-PLUS DR1 tiene más de 3 x 105 fuentes, de las cuales se ha encontrado que alrededor de 3 x 104 son extendidas y poseen datos en el SDSS. Presentamos aquí los resultados obtenidos sobre una submuestra, la cual fue seleccionada considerando valores límite para la relación señal-ruido para los espectros del SDSS y el valor de magnitud en la base de datos DR1, sobre el que se realizó una clasificación ciega.
Asociación Argentina de Astronomía
Materia
Ciencias Astronómicas
surveys
galaxies: general
galaxies: photometry
techniques: spectroscopic
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/171599

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spelling Search of Extended Objects in the Southern Sky (SExOSS) using S-PLUS DR1: photometric characterization of extragalactic sourcesHaack, Rodrigo FacundoAndruchow, IleanaLópez, Iván EzequielReynaldi, María VictoriaSaponara, JulianaSmith Castelli, Analía VivianaCiencias Astronómicassurveysgalaxies: generalgalaxies: photometrytechniques: spectroscopicThe SExOSS (Search of Extended Objects in the Southern Sky) project is planning to study a large sample of extended sources in the southern sky. Using The Southern Photometric Local Universe Survey (S-PLUS) data taken in 12 filters (5 broad + 7 narrow bands), the first step will consist to analyze the photometric relationships shown using the broandband magnitudes, and through a deeper characterization made from narrow band filters behaviour. Such a characterization could reveal the existence of new photometric relationships involving one or more of those narrow band magnitudes available in this survey. In the present work, the first results obtained are shown, on a sample of extended sources included in the first data release (DR1) of S-PLUS. This first release corresponds to the Stripe-82 sky area previously observed by the Sloan Digital Sky Survey (SDSS). For our analysis, we considered a subsample of objects that had spectra in the SDSS to be able to perform a spectroscopic classification of their internal activity (galaxies with/without star formation, active nuclei, etc.) and then searching for links between the properties shown in the narrow band photometry. The S-PLUS DR1 has more than 3 x 105 sources, of which about 3 x 104 have been found to be extended and matched in the SDSS. We present here the results obtained on a subsample selected by considering threshold values for the signtal-to-noise level in both the SDSS spectra and the magnitude value in the DR1 database, on which a blind classification of internal activity was carried out.El proyecto SExOSS (Search of Extended Objects in the Southern Sky) planea estudiar una gran muestra de fuentes extendidas en el cielo austral. Utilizando los datos del Southern Photometric Local Universe Survey (S-PLUS) tomados en 12 filtros (5 de banda ancha + 7 de banda angosta), el primer paso consistirá en analizar las relaciones fotométricas existentes haciendo uso de las magnitudes en banda ancha, y a través de una caracterización más profunda analizando los datos en banda angosta. Dicha caracterización podría revelar la existencia de nuevas relaciones fotométricas que impliquen una o más de esas magnitudes de banda angosta disponibles en este estudio. En el presente trabajo se muestran los primeros resultados obtenidos, sobre una muestra de fuentes extendidas incluidas en la primera liberación pública de datos (DR1) del S-PLUS. Esta primera muestra corresponde a la zona del cielo conocida como Stripe-82 previamente observada por el Sloan Digital Sky Survey (SDSS). Para nuestro análisis, consideramos una submuestra de objetos para los cuales se contaba con espectros en el SDSS, de manera de poder realizar una clasificación espectroscópica (galaxias con/sin formación estelar, núcleos activos, etc.), y buscar posibles vínculos entre las magnitudes detectadas en banda angosta. El S-PLUS DR1 tiene más de 3 x 105 fuentes, de las cuales se ha encontrado que alrededor de 3 x 104 son extendidas y poseen datos en el SDSS. Presentamos aquí los resultados obtenidos sobre una submuestra, la cual fue seleccionada considerando valores límite para la relación señal-ruido para los espectros del SDSS y el valor de magnitud en la base de datos DR1, sobre el que se realizó una clasificación ciega.Asociación Argentina de Astronomía2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/171599enginfo:eu-repo/semantics/altIdentifier/issn/1669-9521info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:46:09Zoai:sedici.unlp.edu.ar:10915/171599Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:46:09.446SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Search of Extended Objects in the Southern Sky (SExOSS) using S-PLUS DR1: photometric characterization of extragalactic sources
title Search of Extended Objects in the Southern Sky (SExOSS) using S-PLUS DR1: photometric characterization of extragalactic sources
spellingShingle Search of Extended Objects in the Southern Sky (SExOSS) using S-PLUS DR1: photometric characterization of extragalactic sources
Haack, Rodrigo Facundo
Ciencias Astronómicas
surveys
galaxies: general
galaxies: photometry
techniques: spectroscopic
title_short Search of Extended Objects in the Southern Sky (SExOSS) using S-PLUS DR1: photometric characterization of extragalactic sources
title_full Search of Extended Objects in the Southern Sky (SExOSS) using S-PLUS DR1: photometric characterization of extragalactic sources
title_fullStr Search of Extended Objects in the Southern Sky (SExOSS) using S-PLUS DR1: photometric characterization of extragalactic sources
title_full_unstemmed Search of Extended Objects in the Southern Sky (SExOSS) using S-PLUS DR1: photometric characterization of extragalactic sources
title_sort Search of Extended Objects in the Southern Sky (SExOSS) using S-PLUS DR1: photometric characterization of extragalactic sources
dc.creator.none.fl_str_mv Haack, Rodrigo Facundo
Andruchow, Ileana
López, Iván Ezequiel
Reynaldi, María Victoria
Saponara, Juliana
Smith Castelli, Analía Viviana
author Haack, Rodrigo Facundo
author_facet Haack, Rodrigo Facundo
Andruchow, Ileana
López, Iván Ezequiel
Reynaldi, María Victoria
Saponara, Juliana
Smith Castelli, Analía Viviana
author_role author
author2 Andruchow, Ileana
López, Iván Ezequiel
Reynaldi, María Victoria
Saponara, Juliana
Smith Castelli, Analía Viviana
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
surveys
galaxies: general
galaxies: photometry
techniques: spectroscopic
topic Ciencias Astronómicas
surveys
galaxies: general
galaxies: photometry
techniques: spectroscopic
dc.description.none.fl_txt_mv The SExOSS (Search of Extended Objects in the Southern Sky) project is planning to study a large sample of extended sources in the southern sky. Using The Southern Photometric Local Universe Survey (S-PLUS) data taken in 12 filters (5 broad + 7 narrow bands), the first step will consist to analyze the photometric relationships shown using the broandband magnitudes, and through a deeper characterization made from narrow band filters behaviour. Such a characterization could reveal the existence of new photometric relationships involving one or more of those narrow band magnitudes available in this survey. In the present work, the first results obtained are shown, on a sample of extended sources included in the first data release (DR1) of S-PLUS. This first release corresponds to the Stripe-82 sky area previously observed by the Sloan Digital Sky Survey (SDSS). For our analysis, we considered a subsample of objects that had spectra in the SDSS to be able to perform a spectroscopic classification of their internal activity (galaxies with/without star formation, active nuclei, etc.) and then searching for links between the properties shown in the narrow band photometry. The S-PLUS DR1 has more than 3 x 105 sources, of which about 3 x 104 have been found to be extended and matched in the SDSS. We present here the results obtained on a subsample selected by considering threshold values for the signtal-to-noise level in both the SDSS spectra and the magnitude value in the DR1 database, on which a blind classification of internal activity was carried out.
El proyecto SExOSS (Search of Extended Objects in the Southern Sky) planea estudiar una gran muestra de fuentes extendidas en el cielo austral. Utilizando los datos del Southern Photometric Local Universe Survey (S-PLUS) tomados en 12 filtros (5 de banda ancha + 7 de banda angosta), el primer paso consistirá en analizar las relaciones fotométricas existentes haciendo uso de las magnitudes en banda ancha, y a través de una caracterización más profunda analizando los datos en banda angosta. Dicha caracterización podría revelar la existencia de nuevas relaciones fotométricas que impliquen una o más de esas magnitudes de banda angosta disponibles en este estudio. En el presente trabajo se muestran los primeros resultados obtenidos, sobre una muestra de fuentes extendidas incluidas en la primera liberación pública de datos (DR1) del S-PLUS. Esta primera muestra corresponde a la zona del cielo conocida como Stripe-82 previamente observada por el Sloan Digital Sky Survey (SDSS). Para nuestro análisis, consideramos una submuestra de objetos para los cuales se contaba con espectros en el SDSS, de manera de poder realizar una clasificación espectroscópica (galaxias con/sin formación estelar, núcleos activos, etc.), y buscar posibles vínculos entre las magnitudes detectadas en banda angosta. El S-PLUS DR1 tiene más de 3 x 105 fuentes, de las cuales se ha encontrado que alrededor de 3 x 104 son extendidas y poseen datos en el SDSS. Presentamos aquí los resultados obtenidos sobre una submuestra, la cual fue seleccionada considerando valores límite para la relación señal-ruido para los espectros del SDSS y el valor de magnitud en la base de datos DR1, sobre el que se realizó una clasificación ciega.
Asociación Argentina de Astronomía
description The SExOSS (Search of Extended Objects in the Southern Sky) project is planning to study a large sample of extended sources in the southern sky. Using The Southern Photometric Local Universe Survey (S-PLUS) data taken in 12 filters (5 broad + 7 narrow bands), the first step will consist to analyze the photometric relationships shown using the broandband magnitudes, and through a deeper characterization made from narrow band filters behaviour. Such a characterization could reveal the existence of new photometric relationships involving one or more of those narrow band magnitudes available in this survey. In the present work, the first results obtained are shown, on a sample of extended sources included in the first data release (DR1) of S-PLUS. This first release corresponds to the Stripe-82 sky area previously observed by the Sloan Digital Sky Survey (SDSS). For our analysis, we considered a subsample of objects that had spectra in the SDSS to be able to perform a spectroscopic classification of their internal activity (galaxies with/without star formation, active nuclei, etc.) and then searching for links between the properties shown in the narrow band photometry. The S-PLUS DR1 has more than 3 x 105 sources, of which about 3 x 104 have been found to be extended and matched in the SDSS. We present here the results obtained on a subsample selected by considering threshold values for the signtal-to-noise level in both the SDSS spectra and the magnitude value in the DR1 database, on which a blind classification of internal activity was carried out.
publishDate 2021
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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
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rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
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