Abstract:
We present CCD BVI photometry for the southern open cluster NGC 2489 and its surrounding field. The sample consists of 2182 stars measured in an area of 13.6 × 13.6 arcmin2, extending down to. These data are supplemented with CORAVEL radial-velocity observations for seven red giant candidates. A cluster angular radius of 6.7 ± 0.6 arcmin, equivalent to 3.5 ± 0.3 pc, is estimated from star counts carried out inside and outside the cluster region. The comparison of the cluster colour-magnitude diagrams with isochrones of the Padova group yields and for log and. NGC 2489 is then located at 1.8 ± 0.3 kpc from the Sun and 25 pc below the Galactic plane. The analysis of the kinematical data allowed us to confirm cluster membership for six red giants, one of them being a spectroscopic binary. A mean radial velocity of 38.13 ± 0.33 km s-1 was derived for the cluster red giants. The properties of a sample of open clusters aligned along the line of sight of NGC 2489 are examined. © 2007 RAS.
Registro:
Documento: |
Artículo
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Título: | CCD BVI photometry and Coravel observations of stars in the open cluster NGC 2489 |
Autor: | Piatti, A.E.; Clariá, J.J.; Mermilliod, J.-C.; Parisi, M.C.; Ahumada, A.V. |
Filiación: | Instituto de Astronomía y Física del Espacio, CC 67, Suc. 28, 1428 Ciudad de Buenos Aires, Argentina Observatorio Astronómico, Universidad Nacional de Córdoba, Laprida 854, 5000 Córdoba, Argentina Laboratoire d'Astrophysique, Ecole Polytechnique Federale de Lausanne, Observatoire, 1290 Sauverny, Switzerland
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Palabras clave: | Open clusters and associations: general; Open clusters and associations: individual: NGC 2489; Stars: kinematics; Techniques: photometric |
Año: | 2007
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Volumen: | 377
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Número: | 4
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Página de inicio: | 1737
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Página de fin: | 1746
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DOI: |
http://dx.doi.org/10.1111/j.1365-2966.2007.11742.x |
Título revista: | Monthly Notices of the Royal Astronomical Society
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Título revista abreviado: | Mon. Not. R. Astron. Soc.
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ISSN: | 00358711
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CODEN: | MNRAA
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00358711_v377_n4_p1737_Piatti |
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Citas:
---------- APA ----------
Piatti, A.E., Clariá, J.J., Mermilliod, J.-C., Parisi, M.C. & Ahumada, A.V.
(2007)
. CCD BVI photometry and Coravel observations of stars in the open cluster NGC 2489. Monthly Notices of the Royal Astronomical Society, 377(4), 1737-1746.
http://dx.doi.org/10.1111/j.1365-2966.2007.11742.x---------- CHICAGO ----------
Piatti, A.E., Clariá, J.J., Mermilliod, J.-C., Parisi, M.C., Ahumada, A.V.
"CCD BVI photometry and Coravel observations of stars in the open cluster NGC 2489"
. Monthly Notices of the Royal Astronomical Society 377, no. 4
(2007) : 1737-1746.
http://dx.doi.org/10.1111/j.1365-2966.2007.11742.x---------- MLA ----------
Piatti, A.E., Clariá, J.J., Mermilliod, J.-C., Parisi, M.C., Ahumada, A.V.
"CCD BVI photometry and Coravel observations of stars in the open cluster NGC 2489"
. Monthly Notices of the Royal Astronomical Society, vol. 377, no. 4, 2007, pp. 1737-1746.
http://dx.doi.org/10.1111/j.1365-2966.2007.11742.x---------- VANCOUVER ----------
Piatti, A.E., Clariá, J.J., Mermilliod, J.-C., Parisi, M.C., Ahumada, A.V. CCD BVI photometry and Coravel observations of stars in the open cluster NGC 2489. Mon. Not. R. Astron. Soc. 2007;377(4):1737-1746.
http://dx.doi.org/10.1111/j.1365-2966.2007.11742.x