Hogg 12 and NGC 3590: A new open cluster binary system candidate
We have obtained CCD UBVIKC photometry down to V ∼ 22.0 for the open clusters Hogg 12 and NGC 3590 and the fields surrounding them. Based on photometric and morphological criteria, as well as on the stellar density in the region, our evidence is sufficient to confirm that Hogg 12 is a genuine open c...
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todo:paper_00046280_v122_n891_p516_Piatti2023-10-03T13:59:45Z Hogg 12 and NGC 3590: A new open cluster binary system candidate Piatti, A.E. Claría, J.J. Ahumada, A.V. We have obtained CCD UBVIKC photometry down to V ∼ 22.0 for the open clusters Hogg 12 and NGC 3590 and the fields surrounding them. Based on photometric and morphological criteria, as well as on the stellar density in the region, our evidence is sufficient to confirm that Hogg 12 is a genuine open cluster. NGC 3590 was used as a control cluster. The color-magnitude diagrams of Hogg 12, cleaned from field star contamination, reveal that this is a solar metal content cluster, affected by E(B -V) = 0.40 ± 0.05, located at a heliocentric distance d = 2.0 ± 0.5 kpc, and of an age similar to that of NGC 3590 (t = 30 Myr). Both clusters are surprisingly small objects whose radii are barely ∼1 pc, andthey are separated in the sky by scarcely 3.6 pc. These facts, added to their similar ages, reddenings, and metallicities, allow us to consider them a new open cluster binary system candidate. Of the ∼180 open cluster binary systems estimated to exist in the Galaxy, of which 27 are actually well known, Hogg 12 and NGC 3590 appear to be one of the two closest pairs. © 2010. The Astronomical Society of the Pacific. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00046280_v122_n891_p516_Piatti |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
We have obtained CCD UBVIKC photometry down to V ∼ 22.0 for the open clusters Hogg 12 and NGC 3590 and the fields surrounding them. Based on photometric and morphological criteria, as well as on the stellar density in the region, our evidence is sufficient to confirm that Hogg 12 is a genuine open cluster. NGC 3590 was used as a control cluster. The color-magnitude diagrams of Hogg 12, cleaned from field star contamination, reveal that this is a solar metal content cluster, affected by E(B -V) = 0.40 ± 0.05, located at a heliocentric distance d = 2.0 ± 0.5 kpc, and of an age similar to that of NGC 3590 (t = 30 Myr). Both clusters are surprisingly small objects whose radii are barely ∼1 pc, andthey are separated in the sky by scarcely 3.6 pc. These facts, added to their similar ages, reddenings, and metallicities, allow us to consider them a new open cluster binary system candidate. Of the ∼180 open cluster binary systems estimated to exist in the Galaxy, of which 27 are actually well known, Hogg 12 and NGC 3590 appear to be one of the two closest pairs. © 2010. The Astronomical Society of the Pacific. All rights reserved. |
| format |
JOUR |
| author |
Piatti, A.E. Claría, J.J. Ahumada, A.V. |
| spellingShingle |
Piatti, A.E. Claría, J.J. Ahumada, A.V. Hogg 12 and NGC 3590: A new open cluster binary system candidate |
| author_facet |
Piatti, A.E. Claría, J.J. Ahumada, A.V. |
| author_sort |
Piatti, A.E. |
| title |
Hogg 12 and NGC 3590: A new open cluster binary system candidate |
| title_short |
Hogg 12 and NGC 3590: A new open cluster binary system candidate |
| title_full |
Hogg 12 and NGC 3590: A new open cluster binary system candidate |
| title_fullStr |
Hogg 12 and NGC 3590: A new open cluster binary system candidate |
| title_full_unstemmed |
Hogg 12 and NGC 3590: A new open cluster binary system candidate |
| title_sort |
hogg 12 and ngc 3590: a new open cluster binary system candidate |
| url |
http://hdl.handle.net/20.500.12110/paper_00046280_v122_n891_p516_Piatti |
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AT piattiae hogg12andngc3590anewopenclusterbinarysystemcandidate AT clariajj hogg12andngc3590anewopenclusterbinarysystemcandidate AT ahumadaav hogg12andngc3590anewopenclusterbinarysystemcandidate |
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1807320174968176640 |