Influence of α-enhancement on effective temperatures of hot subdwarfs
Abstract Observations of metal elements in some halo or bulge globular clusters and in some elliptical galaxies have shown the α-enhancement phenomenon. Hot subdwarfs are important stars, e.g., they are important sources of far-ultraviolet light in the Galaxy and have successfully been used to expla...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Guo, Jianpo [verfasserIn] |
|---|
| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2010 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer Science+Business Media B.V. 2010 |
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| Übergeordnetes Werk: |
Enthalten in: Astrophysics and space science - Springer Netherlands, 1968, 329(2010), 1-2 vom: 12. Feb., Seite 15-18 |
|---|---|
| Übergeordnetes Werk: |
volume:329 ; year:2010 ; number:1-2 ; day:12 ; month:02 ; pages:15-18 |
| Links: |
|---|
| DOI / URN: |
10.1007/s10509-010-0291-4 |
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OLC2066259497 |
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| 520 | |a Abstract Observations of metal elements in some halo or bulge globular clusters and in some elliptical galaxies have shown the α-enhancement phenomenon. Hot subdwarfs are important stars, e.g., they are important sources of far-ultraviolet light in the Galaxy and have successfully been used to explain the UV-upturn in elliptical galaxies. Therefore, we try to study the impacts of α-enhancement on hot subdwarfs. In our calculation, the value of the metallicity is 0.02, all the core masses of hot subdwarfs are 0.475 M⊙, and the envelope masses of the hot subdwarfs are 0.001, 0.005 and 0.016 M⊙, respectively. We find that the influences of α-enhancement on luminosity and evolutionary age of hot subdwarfs are not visible. But α-enhancement can make the effective temperatures of hot subdwarfs become higher, and the thicker their envelopes are, the more obvious this influence is. | ||
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| 700 | 1 | |a Han, Zhanwen |4 aut | |
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10.1007/s10509-010-0291-4 doi (DE-627)OLC2066259497 (DE-He213)s10509-010-0291-4-p DE-627 ger DE-627 rakwb eng 520 530 620 VZ 16,12 ssgn Guo, Jianpo verfasserin aut Influence of α-enhancement on effective temperatures of hot subdwarfs 2010 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media B.V. 2010 Abstract Observations of metal elements in some halo or bulge globular clusters and in some elliptical galaxies have shown the α-enhancement phenomenon. Hot subdwarfs are important stars, e.g., they are important sources of far-ultraviolet light in the Galaxy and have successfully been used to explain the UV-upturn in elliptical galaxies. Therefore, we try to study the impacts of α-enhancement on hot subdwarfs. In our calculation, the value of the metallicity is 0.02, all the core masses of hot subdwarfs are 0.475 M⊙, and the envelope masses of the hot subdwarfs are 0.001, 0.005 and 0.016 M⊙, respectively. We find that the influences of α-enhancement on luminosity and evolutionary age of hot subdwarfs are not visible. But α-enhancement can make the effective temperatures of hot subdwarfs become higher, and the thicker their envelopes are, the more obvious this influence is. Stars: abundances Stars: subdwarfs Stars: horizontal-branch Zhang, Fenghui aut Zhang, Xianfei aut Han, Zhanwen aut Enthalten in Astrophysics and space science Springer Netherlands, 1968 329(2010), 1-2 vom: 12. Feb., Seite 15-18 (DE-627)129062723 (DE-600)629-4 (DE-576)014393522 0004-640X nnns volume:329 year:2010 number:1-2 day:12 month:02 pages:15-18 https://doi.org/10.1007/s10509-010-0291-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY SSG-OLC-AST SSG-OPC-AST GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_2279 GBV_ILN_4012 AR 329 2010 1-2 12 02 15-18 |
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10.1007/s10509-010-0291-4 doi (DE-627)OLC2066259497 (DE-He213)s10509-010-0291-4-p DE-627 ger DE-627 rakwb eng 520 530 620 VZ 16,12 ssgn Guo, Jianpo verfasserin aut Influence of α-enhancement on effective temperatures of hot subdwarfs 2010 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media B.V. 2010 Abstract Observations of metal elements in some halo or bulge globular clusters and in some elliptical galaxies have shown the α-enhancement phenomenon. Hot subdwarfs are important stars, e.g., they are important sources of far-ultraviolet light in the Galaxy and have successfully been used to explain the UV-upturn in elliptical galaxies. Therefore, we try to study the impacts of α-enhancement on hot subdwarfs. In our calculation, the value of the metallicity is 0.02, all the core masses of hot subdwarfs are 0.475 M⊙, and the envelope masses of the hot subdwarfs are 0.001, 0.005 and 0.016 M⊙, respectively. We find that the influences of α-enhancement on luminosity and evolutionary age of hot subdwarfs are not visible. But α-enhancement can make the effective temperatures of hot subdwarfs become higher, and the thicker their envelopes are, the more obvious this influence is. Stars: abundances Stars: subdwarfs Stars: horizontal-branch Zhang, Fenghui aut Zhang, Xianfei aut Han, Zhanwen aut Enthalten in Astrophysics and space science Springer Netherlands, 1968 329(2010), 1-2 vom: 12. Feb., Seite 15-18 (DE-627)129062723 (DE-600)629-4 (DE-576)014393522 0004-640X nnns volume:329 year:2010 number:1-2 day:12 month:02 pages:15-18 https://doi.org/10.1007/s10509-010-0291-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY SSG-OLC-AST SSG-OPC-AST GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_2279 GBV_ILN_4012 AR 329 2010 1-2 12 02 15-18 |
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10.1007/s10509-010-0291-4 doi (DE-627)OLC2066259497 (DE-He213)s10509-010-0291-4-p DE-627 ger DE-627 rakwb eng 520 530 620 VZ 16,12 ssgn Guo, Jianpo verfasserin aut Influence of α-enhancement on effective temperatures of hot subdwarfs 2010 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media B.V. 2010 Abstract Observations of metal elements in some halo or bulge globular clusters and in some elliptical galaxies have shown the α-enhancement phenomenon. Hot subdwarfs are important stars, e.g., they are important sources of far-ultraviolet light in the Galaxy and have successfully been used to explain the UV-upturn in elliptical galaxies. Therefore, we try to study the impacts of α-enhancement on hot subdwarfs. In our calculation, the value of the metallicity is 0.02, all the core masses of hot subdwarfs are 0.475 M⊙, and the envelope masses of the hot subdwarfs are 0.001, 0.005 and 0.016 M⊙, respectively. We find that the influences of α-enhancement on luminosity and evolutionary age of hot subdwarfs are not visible. But α-enhancement can make the effective temperatures of hot subdwarfs become higher, and the thicker their envelopes are, the more obvious this influence is. Stars: abundances Stars: subdwarfs Stars: horizontal-branch Zhang, Fenghui aut Zhang, Xianfei aut Han, Zhanwen aut Enthalten in Astrophysics and space science Springer Netherlands, 1968 329(2010), 1-2 vom: 12. Feb., Seite 15-18 (DE-627)129062723 (DE-600)629-4 (DE-576)014393522 0004-640X nnns volume:329 year:2010 number:1-2 day:12 month:02 pages:15-18 https://doi.org/10.1007/s10509-010-0291-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY SSG-OLC-AST SSG-OPC-AST GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_2279 GBV_ILN_4012 AR 329 2010 1-2 12 02 15-18 |
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10.1007/s10509-010-0291-4 doi (DE-627)OLC2066259497 (DE-He213)s10509-010-0291-4-p DE-627 ger DE-627 rakwb eng 520 530 620 VZ 16,12 ssgn Guo, Jianpo verfasserin aut Influence of α-enhancement on effective temperatures of hot subdwarfs 2010 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media B.V. 2010 Abstract Observations of metal elements in some halo or bulge globular clusters and in some elliptical galaxies have shown the α-enhancement phenomenon. Hot subdwarfs are important stars, e.g., they are important sources of far-ultraviolet light in the Galaxy and have successfully been used to explain the UV-upturn in elliptical galaxies. Therefore, we try to study the impacts of α-enhancement on hot subdwarfs. In our calculation, the value of the metallicity is 0.02, all the core masses of hot subdwarfs are 0.475 M⊙, and the envelope masses of the hot subdwarfs are 0.001, 0.005 and 0.016 M⊙, respectively. We find that the influences of α-enhancement on luminosity and evolutionary age of hot subdwarfs are not visible. But α-enhancement can make the effective temperatures of hot subdwarfs become higher, and the thicker their envelopes are, the more obvious this influence is. Stars: abundances Stars: subdwarfs Stars: horizontal-branch Zhang, Fenghui aut Zhang, Xianfei aut Han, Zhanwen aut Enthalten in Astrophysics and space science Springer Netherlands, 1968 329(2010), 1-2 vom: 12. Feb., Seite 15-18 (DE-627)129062723 (DE-600)629-4 (DE-576)014393522 0004-640X nnns volume:329 year:2010 number:1-2 day:12 month:02 pages:15-18 https://doi.org/10.1007/s10509-010-0291-4 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC SSG-OLC-PHY SSG-OLC-AST SSG-OPC-AST GBV_ILN_40 GBV_ILN_47 GBV_ILN_70 GBV_ILN_2279 GBV_ILN_4012 AR 329 2010 1-2 12 02 15-18 |
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Influence of α-enhancement on effective temperatures of hot subdwarfs |
| abstract |
Abstract Observations of metal elements in some halo or bulge globular clusters and in some elliptical galaxies have shown the α-enhancement phenomenon. Hot subdwarfs are important stars, e.g., they are important sources of far-ultraviolet light in the Galaxy and have successfully been used to explain the UV-upturn in elliptical galaxies. Therefore, we try to study the impacts of α-enhancement on hot subdwarfs. In our calculation, the value of the metallicity is 0.02, all the core masses of hot subdwarfs are 0.475 M⊙, and the envelope masses of the hot subdwarfs are 0.001, 0.005 and 0.016 M⊙, respectively. We find that the influences of α-enhancement on luminosity and evolutionary age of hot subdwarfs are not visible. But α-enhancement can make the effective temperatures of hot subdwarfs become higher, and the thicker their envelopes are, the more obvious this influence is. © Springer Science+Business Media B.V. 2010 |
| abstractGer |
Abstract Observations of metal elements in some halo or bulge globular clusters and in some elliptical galaxies have shown the α-enhancement phenomenon. Hot subdwarfs are important stars, e.g., they are important sources of far-ultraviolet light in the Galaxy and have successfully been used to explain the UV-upturn in elliptical galaxies. Therefore, we try to study the impacts of α-enhancement on hot subdwarfs. In our calculation, the value of the metallicity is 0.02, all the core masses of hot subdwarfs are 0.475 M⊙, and the envelope masses of the hot subdwarfs are 0.001, 0.005 and 0.016 M⊙, respectively. We find that the influences of α-enhancement on luminosity and evolutionary age of hot subdwarfs are not visible. But α-enhancement can make the effective temperatures of hot subdwarfs become higher, and the thicker their envelopes are, the more obvious this influence is. © Springer Science+Business Media B.V. 2010 |
| abstract_unstemmed |
Abstract Observations of metal elements in some halo or bulge globular clusters and in some elliptical galaxies have shown the α-enhancement phenomenon. Hot subdwarfs are important stars, e.g., they are important sources of far-ultraviolet light in the Galaxy and have successfully been used to explain the UV-upturn in elliptical galaxies. Therefore, we try to study the impacts of α-enhancement on hot subdwarfs. In our calculation, the value of the metallicity is 0.02, all the core masses of hot subdwarfs are 0.475 M⊙, and the envelope masses of the hot subdwarfs are 0.001, 0.005 and 0.016 M⊙, respectively. We find that the influences of α-enhancement on luminosity and evolutionary age of hot subdwarfs are not visible. But α-enhancement can make the effective temperatures of hot subdwarfs become higher, and the thicker their envelopes are, the more obvious this influence is. © Springer Science+Business Media B.V. 2010 |
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| container_issue |
1-2 |
| title_short |
Influence of α-enhancement on effective temperatures of hot subdwarfs |
| url |
https://doi.org/10.1007/s10509-010-0291-4 |
| remote_bool |
false |
| author2 |
Zhang, Fenghui Zhang, Xianfei Han, Zhanwen |
| author2Str |
Zhang, Fenghui Zhang, Xianfei Han, Zhanwen |
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129062723 |
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| doi_str |
10.1007/s10509-010-0291-4 |
| up_date |
2024-07-04T04:05:40.681Z |
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