Massive open star clusters using the VVV survey, I: presentation of the data and description of the approach
- Autores
- Chené, A.-N.; Borissova, J.; Clarke, J. R. A.; Bonatto, C.; Majaess, D. J.; Moni Bidin, C.; Sale, S. E.; Mauro, F.; Kurtev, R.; Baume, Gustavo Luis; Feinstein Baigorri, Carlos; Ivanov, V. D.; Geisler, Doug; Catelan, M.; Minniti, Dante; Lucas, P.; de Grijs, R.; Kumar, M. S. N.
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Context. The ESO Public Survey “VISTA Variables in the Vía Láctea” (VVV) provides deep multi-epoch infrared observations for unprecedented 562 sq. degrees of the Galactic bulge, and adjacent regions of the disk. Aims. The VVV observations will foster the construction of a sample of Galactic star clusters with reliable and homogeneously derived physical parameters (e.g., age, distance, and mass, etc.). In this first paper in a series, the methodology employed to establish cluster parameters for the envisioned database are elaborated upon by analysing four known young open clusters: Danks 1, Danks 2, RCW 79, and DBS 132. The analysis offers a first glimpse of the information that can be gleaned from the VVV observations for clusters in the final database. Methods. Wide-field, deep JHKs VVV observations, combined with new infrared spectroscopy, are employed to constrain fundamental parameters for a subset of clusters. Results. Results are inferred from VVV near-infrared photometry and numerous low resolution spectra (typically more than 10 per cluster). The high quality of the spectra and the deep wide–field VVV photometry enables us to precisely and independently determine the characteristics of the clusters studied, which we compare to previous determinations. An anomalous reddening law in the direction of the Danks clusters is found, specifically E(J − H)/E(H − Ks) = 2.20 ± 0.06, which exceeds published values for the inner Galaxy. The G305 star forming complex, which includes the Danks clusters, lies beyond the Sagittarius-Carina spiral arm and occupies the Centaurus arm. Finally, the first deep infrared colour-magnitude diagram of RCW 79 is presented, which reveals a sizeable pre-main sequence population. A list of candidate variable stars in G305 region is reported. Conclusions. This study demonstrates the strength of the dataset and methodology employed, and constitutes the first step of a broader study which shall include reliable parameters for a sizeable number of poorly characterised and/or newly discovered clusters.
Fil: Chené, A.-N.. Universidad de Valparaíso; Chile
Fil: Borissova, J.. Universidad de Valparaíso; Chile
Fil: Clarke, J. R. A.. Universidad de Valparaíso; Chile
Fil: Bonatto, C.. Universidade Federal do Rio Grande do Sul; Brasil
Fil: Majaess, D. J.. Saint Marys University; Canadá
Fil: Moni Bidin, C.. Universidad de Concepción; Chile
Fil: Sale, S. E.. Universidad de Valparaíso; Chile
Fil: Mauro, F.. Universidad de Concepción; Chile
Fil: Kurtev, R.. Universidad de Valparaíso; Chile
Fil: Baume, Gustavo Luis. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. 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: Feinstein Baigorri, Carlos. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. 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: Ivanov, V. D.. European Southern Observatory; Chile
Fil: Geisler, Doug. Universidad de Concepción; Chile
Fil: Catelan, M.. The Milky Way Millennium Nucleus; Chile
Fil: Minniti, Dante. The Milky Way Millennium Nucleus; Chile
Fil: Lucas, P.. University Of Hertfordshire; Reino Unido
Fil: de Grijs, R.. Peking University; China
Fil: Kumar, M. S. N.. Centro de Astrofisica da Universidade do Porto; Portugal - Materia
-
Open clusters
Infrared stars
Surveys
Associations - 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:11336/42476
Ver los metadatos del registro completo
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Massive open star clusters using the VVV survey, I: presentation of the data and description of the approachChené, A.-N.Borissova, J.Clarke, J. R. A.Bonatto, C.Majaess, D. J.Moni Bidin, C.Sale, S. E.Mauro, F.Kurtev, R.Baume, Gustavo LuisFeinstein Baigorri, CarlosIvanov, V. D.Geisler, DougCatelan, M.Minniti, DanteLucas, P.de Grijs, R.Kumar, M. S. N.Open clustersInfrared starsSurveysAssociationshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context. The ESO Public Survey “VISTA Variables in the Vía Láctea” (VVV) provides deep multi-epoch infrared observations for unprecedented 562 sq. degrees of the Galactic bulge, and adjacent regions of the disk. Aims. The VVV observations will foster the construction of a sample of Galactic star clusters with reliable and homogeneously derived physical parameters (e.g., age, distance, and mass, etc.). In this first paper in a series, the methodology employed to establish cluster parameters for the envisioned database are elaborated upon by analysing four known young open clusters: Danks 1, Danks 2, RCW 79, and DBS 132. The analysis offers a first glimpse of the information that can be gleaned from the VVV observations for clusters in the final database. Methods. Wide-field, deep JHKs VVV observations, combined with new infrared spectroscopy, are employed to constrain fundamental parameters for a subset of clusters. Results. Results are inferred from VVV near-infrared photometry and numerous low resolution spectra (typically more than 10 per cluster). The high quality of the spectra and the deep wide–field VVV photometry enables us to precisely and independently determine the characteristics of the clusters studied, which we compare to previous determinations. An anomalous reddening law in the direction of the Danks clusters is found, specifically E(J − H)/E(H − Ks) = 2.20 ± 0.06, which exceeds published values for the inner Galaxy. The G305 star forming complex, which includes the Danks clusters, lies beyond the Sagittarius-Carina spiral arm and occupies the Centaurus arm. Finally, the first deep infrared colour-magnitude diagram of RCW 79 is presented, which reveals a sizeable pre-main sequence population. A list of candidate variable stars in G305 region is reported. Conclusions. This study demonstrates the strength of the dataset and methodology employed, and constitutes the first step of a broader study which shall include reliable parameters for a sizeable number of poorly characterised and/or newly discovered clusters.Fil: Chené, A.-N.. Universidad de Valparaíso; ChileFil: Borissova, J.. Universidad de Valparaíso; ChileFil: Clarke, J. R. A.. Universidad de Valparaíso; ChileFil: Bonatto, C.. Universidade Federal do Rio Grande do Sul; BrasilFil: Majaess, D. J.. Saint Marys University; CanadáFil: Moni Bidin, C.. Universidad de Concepción; ChileFil: Sale, S. E.. Universidad de Valparaíso; ChileFil: Mauro, F.. Universidad de Concepción; ChileFil: Kurtev, R.. Universidad de Valparaíso; ChileFil: Baume, Gustavo Luis. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. 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: Feinstein Baigorri, Carlos. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. 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: Ivanov, V. D.. European Southern Observatory; ChileFil: Geisler, Doug. Universidad de Concepción; ChileFil: Catelan, M.. The Milky Way Millennium Nucleus; ChileFil: Minniti, Dante. The Milky Way Millennium Nucleus; ChileFil: Lucas, P.. University Of Hertfordshire; Reino UnidoFil: de Grijs, R.. Peking University; ChinaFil: Kumar, M. S. N.. Centro de Astrofisica da Universidade do Porto; PortugalEDP Sciences2012-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/42476Chené, A.-N.; Borissova, J.; Clarke, J. R. A.; Bonatto, C.; Majaess, D. J.; et al.; Massive open star clusters using the VVV survey, I: presentation of the data and description of the approach; EDP Sciences; Astronomy and Astrophysics; 545; 54; 6-2012; 1-180004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201219064info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/abs/2012/09/aa19064-12/aa19064-12.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 Técnicas2025-09-29T09:38:38Zoai:ri.conicet.gov.ar:11336/42476instacron: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:34982025-09-29 09:38:38.575CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Massive open star clusters using the VVV survey, I: presentation of the data and description of the approach |
| title |
Massive open star clusters using the VVV survey, I: presentation of the data and description of the approach |
| spellingShingle |
Massive open star clusters using the VVV survey, I: presentation of the data and description of the approach Chené, A.-N. Open clusters Infrared stars Surveys Associations |
| title_short |
Massive open star clusters using the VVV survey, I: presentation of the data and description of the approach |
| title_full |
Massive open star clusters using the VVV survey, I: presentation of the data and description of the approach |
| title_fullStr |
Massive open star clusters using the VVV survey, I: presentation of the data and description of the approach |
| title_full_unstemmed |
Massive open star clusters using the VVV survey, I: presentation of the data and description of the approach |
| title_sort |
Massive open star clusters using the VVV survey, I: presentation of the data and description of the approach |
| dc.creator.none.fl_str_mv |
Chené, A.-N. Borissova, J. Clarke, J. R. A. Bonatto, C. Majaess, D. J. Moni Bidin, C. Sale, S. E. Mauro, F. Kurtev, R. Baume, Gustavo Luis Feinstein Baigorri, Carlos Ivanov, V. D. Geisler, Doug Catelan, M. Minniti, Dante Lucas, P. de Grijs, R. Kumar, M. S. N. |
| author |
Chené, A.-N. |
| author_facet |
Chené, A.-N. Borissova, J. Clarke, J. R. A. Bonatto, C. Majaess, D. J. Moni Bidin, C. Sale, S. E. Mauro, F. Kurtev, R. Baume, Gustavo Luis Feinstein Baigorri, Carlos Ivanov, V. D. Geisler, Doug Catelan, M. Minniti, Dante Lucas, P. de Grijs, R. Kumar, M. S. N. |
| author_role |
author |
| author2 |
Borissova, J. Clarke, J. R. A. Bonatto, C. Majaess, D. J. Moni Bidin, C. Sale, S. E. Mauro, F. Kurtev, R. Baume, Gustavo Luis Feinstein Baigorri, Carlos Ivanov, V. D. Geisler, Doug Catelan, M. Minniti, Dante Lucas, P. de Grijs, R. Kumar, M. S. N. |
| author2_role |
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 Infrared stars Surveys Associations |
| topic |
Open clusters Infrared stars Surveys Associations |
| 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. The ESO Public Survey “VISTA Variables in the Vía Láctea” (VVV) provides deep multi-epoch infrared observations for unprecedented 562 sq. degrees of the Galactic bulge, and adjacent regions of the disk. Aims. The VVV observations will foster the construction of a sample of Galactic star clusters with reliable and homogeneously derived physical parameters (e.g., age, distance, and mass, etc.). In this first paper in a series, the methodology employed to establish cluster parameters for the envisioned database are elaborated upon by analysing four known young open clusters: Danks 1, Danks 2, RCW 79, and DBS 132. The analysis offers a first glimpse of the information that can be gleaned from the VVV observations for clusters in the final database. Methods. Wide-field, deep JHKs VVV observations, combined with new infrared spectroscopy, are employed to constrain fundamental parameters for a subset of clusters. Results. Results are inferred from VVV near-infrared photometry and numerous low resolution spectra (typically more than 10 per cluster). The high quality of the spectra and the deep wide–field VVV photometry enables us to precisely and independently determine the characteristics of the clusters studied, which we compare to previous determinations. An anomalous reddening law in the direction of the Danks clusters is found, specifically E(J − H)/E(H − Ks) = 2.20 ± 0.06, which exceeds published values for the inner Galaxy. The G305 star forming complex, which includes the Danks clusters, lies beyond the Sagittarius-Carina spiral arm and occupies the Centaurus arm. Finally, the first deep infrared colour-magnitude diagram of RCW 79 is presented, which reveals a sizeable pre-main sequence population. A list of candidate variable stars in G305 region is reported. Conclusions. This study demonstrates the strength of the dataset and methodology employed, and constitutes the first step of a broader study which shall include reliable parameters for a sizeable number of poorly characterised and/or newly discovered clusters. Fil: Chené, A.-N.. Universidad de Valparaíso; Chile Fil: Borissova, J.. Universidad de Valparaíso; Chile Fil: Clarke, J. R. A.. Universidad de Valparaíso; Chile Fil: Bonatto, C.. Universidade Federal do Rio Grande do Sul; Brasil Fil: Majaess, D. J.. Saint Marys University; Canadá Fil: Moni Bidin, C.. Universidad de Concepción; Chile Fil: Sale, S. E.. Universidad de Valparaíso; Chile Fil: Mauro, F.. Universidad de Concepción; Chile Fil: Kurtev, R.. Universidad de Valparaíso; Chile Fil: Baume, Gustavo Luis. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. 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: Feinstein Baigorri, Carlos. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. 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: Ivanov, V. D.. European Southern Observatory; Chile Fil: Geisler, Doug. Universidad de Concepción; Chile Fil: Catelan, M.. The Milky Way Millennium Nucleus; Chile Fil: Minniti, Dante. The Milky Way Millennium Nucleus; Chile Fil: Lucas, P.. University Of Hertfordshire; Reino Unido Fil: de Grijs, R.. Peking University; China Fil: Kumar, M. S. N.. Centro de Astrofisica da Universidade do Porto; Portugal |
| description |
Context. The ESO Public Survey “VISTA Variables in the Vía Láctea” (VVV) provides deep multi-epoch infrared observations for unprecedented 562 sq. degrees of the Galactic bulge, and adjacent regions of the disk. Aims. The VVV observations will foster the construction of a sample of Galactic star clusters with reliable and homogeneously derived physical parameters (e.g., age, distance, and mass, etc.). In this first paper in a series, the methodology employed to establish cluster parameters for the envisioned database are elaborated upon by analysing four known young open clusters: Danks 1, Danks 2, RCW 79, and DBS 132. The analysis offers a first glimpse of the information that can be gleaned from the VVV observations for clusters in the final database. Methods. Wide-field, deep JHKs VVV observations, combined with new infrared spectroscopy, are employed to constrain fundamental parameters for a subset of clusters. Results. Results are inferred from VVV near-infrared photometry and numerous low resolution spectra (typically more than 10 per cluster). The high quality of the spectra and the deep wide–field VVV photometry enables us to precisely and independently determine the characteristics of the clusters studied, which we compare to previous determinations. An anomalous reddening law in the direction of the Danks clusters is found, specifically E(J − H)/E(H − Ks) = 2.20 ± 0.06, which exceeds published values for the inner Galaxy. The G305 star forming complex, which includes the Danks clusters, lies beyond the Sagittarius-Carina spiral arm and occupies the Centaurus arm. Finally, the first deep infrared colour-magnitude diagram of RCW 79 is presented, which reveals a sizeable pre-main sequence population. A list of candidate variable stars in G305 region is reported. Conclusions. This study demonstrates the strength of the dataset and methodology employed, and constitutes the first step of a broader study which shall include reliable parameters for a sizeable number of poorly characterised and/or newly discovered clusters. |
| publishDate |
2012 |
| dc.date.none.fl_str_mv |
2012-06 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://hdl.handle.net/11336/42476 Chené, A.-N.; Borissova, J.; Clarke, J. R. A.; Bonatto, C.; Majaess, D. J.; et al.; Massive open star clusters using the VVV survey, I: presentation of the data and description of the approach; EDP Sciences; Astronomy and Astrophysics; 545; 54; 6-2012; 1-18 0004-6361 CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/42476 |
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Chené, A.-N.; Borissova, J.; Clarke, J. R. A.; Bonatto, C.; Majaess, D. J.; et al.; Massive open star clusters using the VVV survey, I: presentation of the data and description of the approach; EDP Sciences; Astronomy and Astrophysics; 545; 54; 6-2012; 1-18 0004-6361 CONICET Digital CONICET |
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eng |
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eng |
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EDP Sciences |
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