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Abstract:

We report UBV photoelectric photometry for 273 stars in the fields of the open clusters IC 2395 and BH47. Our postulate is that, rather than two different clusters in this region of Vela, there is only one, which we call IC 2395 = BH 47. The cluster is centered at about α = 8h42. m15, δ= -48°06′.8 (2000), its angular diameter being ∼19′. The analysis of the photometric data yields 61 probable cluster members and 16 possible members. Photometric membership probabilities show good agreement with those obtained from a proper motion study for 21 stars in common. The reddening across the cluster appears to be uniform, the mean E(B - V) value being 0.09 ± 0.02. The true distance modulus is (V - M v)0 = 9.52 ± 0.10, corresponding to a distance from the Sun of (800 ± 40) pc and 48 pc below the Galactic plane. The cluster age, determined by fitting isochrones with core overshooting, turns out to be (6 ± 2) Myr. There is a strong likelihood that IC 2395 = BH47 is physically connected to the Vela OB 1C association.

Registro:

Documento: Artículo
Título:IC 2395 and BH 47: Only one open cluster in the Vela constellation
Autor:Clariá, J.J.; Lapasset, E.; Piatti, A.E.; Ahumada, A.V.
Filiación:Observatorio Astronómico, Univ. Nacional de Córdoba, Laprida 854, 5000 Córdoba, Argentina
Inst. de Astron./Fis. del Espacio, CC 67, Suc. 28, 1428, Buenos Aires, Argentina
Palabras clave:Methods: observational; Open clusters and associations: individual: IC 2395, BH47; Stars: fundamental parameters; Techniques: photometric; Luminescence; Optical telescopes; Photometry; Planets; Solar radiation; Constellations; Galaxies
Año:2003
Volumen:409
Número:2
Página de inicio:541
Página de fin:551
DOI: http://dx.doi.org/10.1051/0004-6361:20031121
Título revista:Astronomy and Astrophysics
Título revista abreviado:Astron. Astrophys.
ISSN:00046361
CODEN:AAEJA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v409_n2_p541_Claria

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Citas:

---------- APA ----------
Clariá, J.J., Lapasset, E., Piatti, A.E. & Ahumada, A.V. (2003) . IC 2395 and BH 47: Only one open cluster in the Vela constellation. Astronomy and Astrophysics, 409(2), 541-551.
http://dx.doi.org/10.1051/0004-6361:20031121
---------- CHICAGO ----------
Clariá, J.J., Lapasset, E., Piatti, A.E., Ahumada, A.V. "IC 2395 and BH 47: Only one open cluster in the Vela constellation" . Astronomy and Astrophysics 409, no. 2 (2003) : 541-551.
http://dx.doi.org/10.1051/0004-6361:20031121
---------- MLA ----------
Clariá, J.J., Lapasset, E., Piatti, A.E., Ahumada, A.V. "IC 2395 and BH 47: Only one open cluster in the Vela constellation" . Astronomy and Astrophysics, vol. 409, no. 2, 2003, pp. 541-551.
http://dx.doi.org/10.1051/0004-6361:20031121
---------- VANCOUVER ----------
Clariá, J.J., Lapasset, E., Piatti, A.E., Ahumada, A.V. IC 2395 and BH 47: Only one open cluster in the Vela constellation. Astron. Astrophys. 2003;409(2):541-551.
http://dx.doi.org/10.1051/0004-6361:20031121