Multicolor photometry of red giant candidates in the southern open cluster NGC 2447
Photoelectric photometry in the UBV, DDO and Washington systems is presented for 14 late-type giant candidates of the southern open cluster NGC 2447. By applying two independent photometric criteria, nine stars are found to have a high probability of being cluster giants. The photometric membership...
Guardado en:
| Autores principales: | , , , |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_13920049_v14_n3_p301_Claria |
| Aporte de: |
| id |
todo:paper_13920049_v14_n3_p301_Claria |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_13920049_v14_n3_p301_Claria2023-10-03T16:12:48Z Multicolor photometry of red giant candidates in the southern open cluster NGC 2447 Clariá, J.J. Piatti, A.E. Lapasset, E. Parisi, M.C. DDO system Methods: observational Open clusters: metal abundance Techniques: photometric: UBV system Washington system Photoelectric photometry in the UBV, DDO and Washington systems is presented for 14 late-type giant candidates of the southern open cluster NGC 2447. By applying two independent photometric criteria, nine stars are found to have a high probability of being cluster giants. The photometric membership results are in good agreement with those derived from published Coravel radial velocities. The mean interstellar reddening EB-V = 0.05±0.04 has been derived from the confirmed cluster giants. NGC 2447 has a mean ultraviolet excess 〈δ(U-B)〉 = 0.01±0.02 (σn) with respect to solar composition K giants, and a mean cyanogen anomaly 〈ΔCN〉 = 0.01±0.02 (σnn) , both implying a small metal deficiency ([Fe/H] ≃ -0.1). Five independent Washington abundance indices yield a mean cluster metallicity of [Fe/H] = -0.09±0.06, in agreement with the two previous estimates. Therefore, NGC 2447 is found to be slightly metal-poor. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_13920049_v14_n3_p301_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 |
DDO system Methods: observational Open clusters: metal abundance Techniques: photometric: UBV system Washington system |
| spellingShingle |
DDO system Methods: observational Open clusters: metal abundance Techniques: photometric: UBV system Washington system Clariá, J.J. Piatti, A.E. Lapasset, E. Parisi, M.C. Multicolor photometry of red giant candidates in the southern open cluster NGC 2447 |
| topic_facet |
DDO system Methods: observational Open clusters: metal abundance Techniques: photometric: UBV system Washington system |
| description |
Photoelectric photometry in the UBV, DDO and Washington systems is presented for 14 late-type giant candidates of the southern open cluster NGC 2447. By applying two independent photometric criteria, nine stars are found to have a high probability of being cluster giants. The photometric membership results are in good agreement with those derived from published Coravel radial velocities. The mean interstellar reddening EB-V = 0.05±0.04 has been derived from the confirmed cluster giants. NGC 2447 has a mean ultraviolet excess 〈δ(U-B)〉 = 0.01±0.02 (σn) with respect to solar composition K giants, and a mean cyanogen anomaly 〈ΔCN〉 = 0.01±0.02 (σnn) , both implying a small metal deficiency ([Fe/H] ≃ -0.1). Five independent Washington abundance indices yield a mean cluster metallicity of [Fe/H] = -0.09±0.06, in agreement with the two previous estimates. Therefore, NGC 2447 is found to be slightly metal-poor. |
| format |
JOUR |
| author |
Clariá, J.J. Piatti, A.E. Lapasset, E. Parisi, M.C. |
| author_facet |
Clariá, J.J. Piatti, A.E. Lapasset, E. Parisi, M.C. |
| author_sort |
Clariá, J.J. |
| title |
Multicolor photometry of red giant candidates in the southern open cluster NGC 2447 |
| title_short |
Multicolor photometry of red giant candidates in the southern open cluster NGC 2447 |
| title_full |
Multicolor photometry of red giant candidates in the southern open cluster NGC 2447 |
| title_fullStr |
Multicolor photometry of red giant candidates in the southern open cluster NGC 2447 |
| title_full_unstemmed |
Multicolor photometry of red giant candidates in the southern open cluster NGC 2447 |
| title_sort |
multicolor photometry of red giant candidates in the southern open cluster ngc 2447 |
| url |
http://hdl.handle.net/20.500.12110/paper_13920049_v14_n3_p301_Claria |
| work_keys_str_mv |
AT clariajj multicolorphotometryofredgiantcandidatesinthesouthernopenclusterngc2447 AT piattiae multicolorphotometryofredgiantcandidatesinthesouthernopenclusterngc2447 AT lapassete multicolorphotometryofredgiantcandidatesinthesouthernopenclusterngc2447 AT parisimc multicolorphotometryofredgiantcandidatesinthesouthernopenclusterngc2447 |
| _version_ |
1782024892868198400 |