C,T1,T2: A Complementary Method To Detect Multiple Populations With The Washington Filter System
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional Autónoma de México
2022
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| _version_ | 1876424904596783104 |
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| author | Heinz Frelijj |
| author_facet | Heinz Frelijj |
| contents | C,T1,T2: A Complementary Method To Detect Multiple Populations With The Washington Filter System Heinz Frelijj Douglas Geisler Sandro Villanova Cesar Munoz Física, Astronomía y Matemáticas Hertzsprung stars: imaging Globular clusters Russell and colour magnitude diagrams In this research we test the ability of a three Washington filter combination, (C − T1) − (T1− T2), compared with that of the traditional C − T1 color to find multiple populations on two globular clusters: NGC 7099 and NGC 1851, types I and II Globular clusters, respectively. Our improved photometry and membership selection, now using Gaia proper motions, finds that second population stars are more centrally concentrated than first population stars, as expected and contrary to our previous findings for NGC 7099. We find that multiple populations are more easily detected in both clusters using the new (C − T1) − (T1− T2) color, although C − T1 conserves the best width/error ratio. We also search for differences of both colors while splitting the red-RGB and the blue-RGB in NGC 1851, but find no significant improvement. 2022 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57175502002 https://www.redalyc.org/journal/571/57175502002/ https://www.redalyc.org/journal/571/57175502002/html/ https://www.redalyc.org/journal/571/57175502002/57175502002.epub https://www.redalyc.org/journal/571/57175502002/movil 10.22201/ia.01851101p.2022.58.02.02 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.2 Vol.58 |
| format | Artículo científico |
| id | redalyc_57175502002 |
| institution | Redalyc |
| language | en |
| publishDate | 2022 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | C,T1,T2: A Complementary Method To Detect Multiple Populations With The Washington Filter System Heinz Frelijj Física, Astronomía y Matemáticas Hertzsprung stars: imaging Globular clusters Russell and colour magnitude diagrams C,T1,T2: A Complementary Method To Detect Multiple Populations With The Washington Filter System Heinz Frelijj Douglas Geisler Sandro Villanova Cesar Munoz Física, Astronomía y Matemáticas Hertzsprung stars: imaging Globular clusters Russell and colour magnitude diagrams In this research we test the ability of a three Washington filter combination, (C − T1) − (T1− T2), compared with that of the traditional C − T1 color to find multiple populations on two globular clusters: NGC 7099 and NGC 1851, types I and II Globular clusters, respectively. Our improved photometry and membership selection, now using Gaia proper motions, finds that second population stars are more centrally concentrated than first population stars, as expected and contrary to our previous findings for NGC 7099. We find that multiple populations are more easily detected in both clusters using the new (C − T1) − (T1− T2) color, although C − T1 conserves the best width/error ratio. We also search for differences of both colors while splitting the red-RGB and the blue-RGB in NGC 1851, but find no significant improvement. 2022 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57175502002 https://www.redalyc.org/journal/571/57175502002/ https://www.redalyc.org/journal/571/57175502002/html/ https://www.redalyc.org/journal/571/57175502002/57175502002.epub https://www.redalyc.org/journal/571/57175502002/movil 10.22201/ia.01851101p.2022.58.02.02 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.2 Vol.58 |
| title | C,T1,T2: A Complementary Method To Detect Multiple Populations With The Washington Filter System |
| topic | Física, Astronomía y Matemáticas Hertzsprung stars: imaging Globular clusters Russell and colour magnitude diagrams |
| url | https://www.redalyc.org/articulo.oa?id=57175502002 https://www.redalyc.org/journal/571/57175502002/ https://www.redalyc.org/journal/571/57175502002/html/ https://www.redalyc.org/journal/571/57175502002/57175502002.epub https://www.redalyc.org/journal/571/57175502002/movil |