The open cluster King 1 in the second quadrant
We analyse the poorly studied open cluster King 1 in the second Galactic quadrant. From wide-field photometry, we have studied the spatial distribution of this cluster. We determined that the centre of King 1 is located at α2000 = 00h22m and δ2000 = +64°23΄. By parameterizing the stellar density wit...
| Autores: | , , , , , , |
|---|---|
| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2017 |
| País: | España |
| Recursos: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/123120 |
| Acesso em linha: | https://hdl.handle.net/2445/123120 |
| Access Level: | acceso abierto |
| Palavra-chave: | Cúmuls d'estels Galàxies Clusters of stars Galaxies |
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The open cluster King 1 in the second quadrantCarrera Jiménez, RicardoRodríguez Espinosa, LoretoCasamiquela, LaiaBalaguer Núñez, María de los DoloresJordi i Nebot, CarmeAllende Prieto, CarlosStetson, Peter B.Cúmuls d'estelsGalàxiesClusters of starsGalaxiesWe analyse the poorly studied open cluster King 1 in the second Galactic quadrant. From wide-field photometry, we have studied the spatial distribution of this cluster. We determined that the centre of King 1 is located at α2000 = 00h22m and δ2000 = +64°23΄. By parameterizing the stellar density with a King profile, we have obtained a central density of ρ0 = 6.5 ± 0.2 star arcmin-2 and a core radius of rcore = 1.9 ± 0.2 arcmin. By comparing the observed colour-magnitude diagram of King 1 with those of similar open clusters and with different sets of isochrones, we have estimated an age of 2.8 ± 0.3 Gyr, a distance modulus of (m - M)o = 10.6 ± 0.1 mag and a reddening of E(B - V) = 0.80 ± 0.05 mag. To complete our analysis, we acquired medium resolution spectra for 189 stars in the area of King 1. From their derived radial velocities, we determined an average velocity = -53.1 ± 3.1 km s-1. From the strength of the infrared Ca II lines in red giants we have determined an average metallicity of <[M/H]> = +0.07 ± 0.08 dex. From spectral synthesis, we have also estimated an α-elements abundance of <[α/M]> = -0.10 ± 0.08 dex.Royal Astronomical Society2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/123120Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1093/mnras/stx1526Monthly Notices of the Royal Astronomical Society, 2017, vol. 470, num. 4, p. 4285-4297https://doi.org/10.1093/mnras/stx1526(c) Carrera, Ricardo et al., 2017info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1231202026-05-27T06:46:51Z |
| dc.title.none.fl_str_mv |
The open cluster King 1 in the second quadrant |
| title |
The open cluster King 1 in the second quadrant |
| spellingShingle |
The open cluster King 1 in the second quadrant Carrera Jiménez, Ricardo Cúmuls d'estels Galàxies Clusters of stars Galaxies |
| title_short |
The open cluster King 1 in the second quadrant |
| title_full |
The open cluster King 1 in the second quadrant |
| title_fullStr |
The open cluster King 1 in the second quadrant |
| title_full_unstemmed |
The open cluster King 1 in the second quadrant |
| title_sort |
The open cluster King 1 in the second quadrant |
| dc.creator.none.fl_str_mv |
Carrera Jiménez, Ricardo Rodríguez Espinosa, Loreto Casamiquela, Laia Balaguer Núñez, María de los Dolores Jordi i Nebot, Carme Allende Prieto, Carlos Stetson, Peter B. |
| author |
Carrera Jiménez, Ricardo |
| author_facet |
Carrera Jiménez, Ricardo Rodríguez Espinosa, Loreto Casamiquela, Laia Balaguer Núñez, María de los Dolores Jordi i Nebot, Carme Allende Prieto, Carlos Stetson, Peter B. |
| author_role |
author |
| author2 |
Rodríguez Espinosa, Loreto Casamiquela, Laia Balaguer Núñez, María de los Dolores Jordi i Nebot, Carme Allende Prieto, Carlos Stetson, Peter B. |
| author2_role |
author author author author author author |
| dc.subject.none.fl_str_mv |
Cúmuls d'estels Galàxies Clusters of stars Galaxies |
| topic |
Cúmuls d'estels Galàxies Clusters of stars Galaxies |
| description |
We analyse the poorly studied open cluster King 1 in the second Galactic quadrant. From wide-field photometry, we have studied the spatial distribution of this cluster. We determined that the centre of King 1 is located at α2000 = 00h22m and δ2000 = +64°23΄. By parameterizing the stellar density with a King profile, we have obtained a central density of ρ0 = 6.5 ± 0.2 star arcmin-2 and a core radius of rcore = 1.9 ± 0.2 arcmin. By comparing the observed colour-magnitude diagram of King 1 with those of similar open clusters and with different sets of isochrones, we have estimated an age of 2.8 ± 0.3 Gyr, a distance modulus of (m - M)o = 10.6 ± 0.1 mag and a reddening of E(B - V) = 0.80 ± 0.05 mag. To complete our analysis, we acquired medium resolution spectra for 189 stars in the area of King 1. From their derived radial velocities, we determined an average velocity = -53.1 ± 3.1 km s-1. From the strength of the infrared Ca II lines in red giants we have determined an average metallicity of <[M/H]> = +0.07 ± 0.08 dex. From spectral synthesis, we have also estimated an α-elements abundance of <[α/M]> = -0.10 ± 0.08 dex. |
| publishDate |
2017 |
| dc.date.none.fl_str_mv |
2017 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/2445/123120 |
| url |
https://hdl.handle.net/2445/123120 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
Reproducció del document publicat a: https://doi.org/10.1093/mnras/stx1526 Monthly Notices of the Royal Astronomical Society, 2017, vol. 470, num. 4, p. 4285-4297 https://doi.org/10.1093/mnras/stx1526 |
| dc.rights.none.fl_str_mv |
(c) Carrera, Ricardo et al., 2017 info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
(c) Carrera, Ricardo et al., 2017 |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
Royal Astronomical Society |
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Royal Astronomical Society |
| dc.source.none.fl_str_mv |
Articles publicats en revistes (Física Quàntica i Astrofísica) reponame:Dipòsit Digital de la UB instname:Universidad de Barcelona |
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Universidad de Barcelona |
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Dipòsit Digital de la UB |
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Dipòsit Digital de la UB |
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