IC 2395 and BH 47: Only one open cluster in the Vela constellation

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 (...

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Autores principales: Clariá, J.J., Lapasset, E., Piatti, A.E., Ahumada, A.V.
Formato: JOUR
Materias:
Methods: observational
Open clusters and associations: individual: IC 2395, BH47
Stars: fundamental parameters
Techniques: photometric
Luminescence
Optical telescopes
Photometry
Planets
Solar radiation
Constellations
Galaxies
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00046361_v409_n2_p541_Claria
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00046361_v409_n2_p541_Claria
record_format dspace
spelling todo:paper_00046361_v409_n2_p541_Claria2023-10-03T14:00:04Z IC 2395 and BH 47: Only one open cluster in the Vela constellation Clariá, J.J. Lapasset, E. Piatti, A.E. Ahumada, A.V. Methods: observational Open clusters and associations: individual: IC 2395, BH47 Stars: fundamental parameters Techniques: photometric Luminescence Optical telescopes Photometry Planets Solar radiation Constellations Galaxies 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00046361_v409_n2_p541_Claria
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Methods: observational
Open clusters and associations: individual: IC 2395, BH47
Stars: fundamental parameters
Techniques: photometric
Luminescence
Optical telescopes
Photometry
Planets
Solar radiation
Constellations
Galaxies
spellingShingle Methods: observational
Open clusters and associations: individual: IC 2395, BH47
Stars: fundamental parameters
Techniques: photometric
Luminescence
Optical telescopes
Photometry
Planets
Solar radiation
Constellations
Galaxies
Clariá, J.J.
Lapasset, E.
Piatti, A.E.
Ahumada, A.V.
IC 2395 and BH 47: Only one open cluster in the Vela constellation
topic_facet Methods: observational
Open clusters and associations: individual: IC 2395, BH47
Stars: fundamental parameters
Techniques: photometric
Luminescence
Optical telescopes
Photometry
Planets
Solar radiation
Constellations
Galaxies
description 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.
format JOUR
author Clariá, J.J.
Lapasset, E.
Piatti, A.E.
Ahumada, A.V.
author_facet Clariá, J.J.
Lapasset, E.
Piatti, A.E.
Ahumada, A.V.
author_sort Clariá, J.J.
title IC 2395 and BH 47: Only one open cluster in the Vela constellation
title_short IC 2395 and BH 47: Only one open cluster in the Vela constellation
title_full IC 2395 and BH 47: Only one open cluster in the Vela constellation
title_fullStr IC 2395 and BH 47: Only one open cluster in the Vela constellation
title_full_unstemmed IC 2395 and BH 47: Only one open cluster in the Vela constellation
title_sort ic 2395 and bh 47: only one open cluster in the vela constellation
url http://hdl.handle.net/20.500.12110/paper_00046361_v409_n2_p541_Claria
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AT lapassete ic2395andbh47onlyoneopenclusterinthevelaconstellation
AT piattiae ic2395andbh47onlyoneopenclusterinthevelaconstellation
AT ahumadaav ic2395andbh47onlyoneopenclusterinthevelaconstellation
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