Membership Determination of van den Bergh Open Clusters vdB92, vdB146 (NGC 7129) and vdB150

In this paper we study some van den Bergh open clusters combining photometry and astrometry. A model which analyses the proper motion distribution and the stellar density is applied to find the kinematic parameters and stellar membership in the region of the open clusters vdB92, vdB146 (NGC 7129) an...

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Detalles Bibliográficos
Autores principales:	Orellana, Rosa Beatriz, De Biasi, María Silvina, Paíz, Leonardo Gastón
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2017
Materias:	Astronomía Física Ciencias Naturales Ciencias Exactas Open clusters and associations: General Open clusters and associations: individual (vdB92, vdB146, vdB150) Astrometry
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/93842 http://file.scirp.org/Html/4-4500693_80903.htm
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-93842
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Astronomía Física Ciencias Naturales Ciencias Exactas Open clusters and associations: General Open clusters and associations: individual (vdB92, vdB146, vdB150) Astrometry
spellingShingle	Astronomía Física Ciencias Naturales Ciencias Exactas Open clusters and associations: General Open clusters and associations: individual (vdB92, vdB146, vdB150) Astrometry Orellana, Rosa Beatriz De Biasi, María Silvina Paíz, Leonardo Gastón Membership Determination of van den Bergh Open Clusters vdB92, vdB146 (NGC 7129) and vdB150
topic_facet	Astronomía Física Ciencias Naturales Ciencias Exactas Open clusters and associations: General Open clusters and associations: individual (vdB92, vdB146, vdB150) Astrometry
description	In this paper we study some van den Bergh open clusters combining photometry and astrometry. A model which analyses the proper motion distribution and the stellar density is applied to find the kinematic parameters and stellar membership in the region of the open clusters vdB92, vdB146 (NGC 7129) and vdB150. The astrometric data are obtained from UCAC4 catalogue. The centre coordinates, the components of mean proper motion, the angular diameter and the astrometric members are reported, taking the following values: for vdB92: <span style="white-space: nowrap;">α=105.97281°±0.13113°</span>, <span style="white-space: nowrap;">δ=−11.57814°±0.10575°</span>, <span style="white-space: nowrap;">μ<sub>α</sub>cosδ=−3.46±0.19mas/yr</span>,<span style="white-space: nowrap;">μ<sub>δ</sub>=1.27±0.19mas/yr</span>, 34´, 60 members; for vdB146: <span style="white-space: nowrap;">α=325.78423°±0.15297°</span>, <span style="white-space: nowrap;">δ=66.13575°±0.02907°</span>, <span style="white-space: nowrap;">μ<sub>α</sub>cosδ=−2.71±0.25mas/yr</span>, <span style="white-space: nowrap;">μ<sub>δ</sub>=−3.32±0.25mas/yr</span>, 9´, 5 members; and for vdB150: <span style="white-space: nowrap;">α=332.22519°±0.06074°</span>, <span style="white-space: nowrap;">δ=73.40232°±0.0.07789°</span>, <span style="white-space: nowrap;">μ<sub>α</sub>cosδ=3.07±0.90mas/yr</span>, <span style="white-space: nowrap;">μ<sub>δ</sub>=4.65±0.90mas/yr</span>, 15´, 7 members. The incidence of the proper motion errors in the determination of the cluster parameters and of the stellar membership is analysed and it is found that they do not significantly change. We finally compare the astrometric members with the photometric ones given in the literature.
format	Articulo Articulo
author	Orellana, Rosa Beatriz De Biasi, María Silvina Paíz, Leonardo Gastón
author_facet	Orellana, Rosa Beatriz De Biasi, María Silvina Paíz, Leonardo Gastón
author_sort	Orellana, Rosa Beatriz
title	Membership Determination of van den Bergh Open Clusters vdB92, vdB146 (NGC 7129) and vdB150
title_short	Membership Determination of van den Bergh Open Clusters vdB92, vdB146 (NGC 7129) and vdB150
title_full	Membership Determination of van den Bergh Open Clusters vdB92, vdB146 (NGC 7129) and vdB150
title_fullStr	Membership Determination of van den Bergh Open Clusters vdB92, vdB146 (NGC 7129) and vdB150
title_full_unstemmed	Membership Determination of van den Bergh Open Clusters vdB92, vdB146 (NGC 7129) and vdB150
title_sort	membership determination of van den bergh open clusters vdb92, vdb146 (ngc 7129) and vdb150
publishDate	2017
url	http://sedici.unlp.edu.ar/handle/10915/93842 http://file.scirp.org/Html/4-4500693_80903.htm
work_keys_str_mv	AT orellanarosabeatriz membershipdeterminationofvandenberghopenclustersvdb92vdb146ngc7129andvdb150 AT debiasimariasilvina membershipdeterminationofvandenberghopenclustersvdb92vdb146ngc7129andvdb150 AT paizleonardogaston membershipdeterminationofvandenberghopenclustersvdb92vdb146ngc7129andvdb150
bdutipo_str	Repositorios
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Membership Determination of van den Bergh Open Clusters vdB92, vdB146 (NGC 7129) and vdB150

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