Starburst and old population in z=3.8 radio galaxies with Pégase.3
Distant radio galaxies, hosted by massive ellipticals, follow the galaxy evolution process on an extremely large (0 = z =7) time-scale = 10 12Gyrs, up to primeval galaxies. The new evolutionary code Pégase.3 predicts on similar time-scales, the coupled stellar and dust emissions of various galaxy ty...
| Main Authors: | , |
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| Format: | Conference Paper |
| Published: |
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/23831 |
| _version_ | 1848751260308602880 |
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| author | Rocca-Volmerange, B. Drouart, Guillaume |
| author_facet | Rocca-Volmerange, B. Drouart, Guillaume |
| author_sort | Rocca-Volmerange, B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Distant radio galaxies, hosted by massive ellipticals, follow the galaxy evolution process on an extremely large (0 = z =7) time-scale = 10 12Gyrs, up to primeval galaxies. The new evolutionary code Pégase.3 predicts on similar time-scales, the coupled stellar and dust emissions of various galaxy types: starbursts and Hubble sequence types. All z=0 templates are fitted on local observations at ages ?13 Gyrs (except irregulars at 9 Gyrs). The multi-? spectral energy distributions (SEDs) of two z=3.8 radiogalaxies, including the most recent Herschel data from the HeRGÉ consortium, are interpreted in the observer's frame by Rocca-Volmerange et al. (2012) with Pégase.3. The apparent SEDs are fitted at best with the sum of a young starburst and an older early-type population, an AGN simple model is taken into account. These results favor massive gas-rich mergers at work in evolved galaxies at z?4. Massive starbursts would be at the origin of galaxy evolution initiated at the earliest epochs (z for=10). The possible relation with super massive black holes is still debated. © 2013 International Astronomical Union. |
| first_indexed | 2025-11-14T07:49:54Z |
| format | Conference Paper |
| id | curtin-20.500.11937-23831 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:49:54Z |
| publishDate | 2012 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-238312017-09-13T14:00:17Z Starburst and old population in z=3.8 radio galaxies with Pégase.3 Rocca-Volmerange, B. Drouart, Guillaume Distant radio galaxies, hosted by massive ellipticals, follow the galaxy evolution process on an extremely large (0 = z =7) time-scale = 10 12Gyrs, up to primeval galaxies. The new evolutionary code Pégase.3 predicts on similar time-scales, the coupled stellar and dust emissions of various galaxy types: starbursts and Hubble sequence types. All z=0 templates are fitted on local observations at ages ?13 Gyrs (except irregulars at 9 Gyrs). The multi-? spectral energy distributions (SEDs) of two z=3.8 radiogalaxies, including the most recent Herschel data from the HeRGÉ consortium, are interpreted in the observer's frame by Rocca-Volmerange et al. (2012) with Pégase.3. The apparent SEDs are fitted at best with the sum of a young starburst and an older early-type population, an AGN simple model is taken into account. These results favor massive gas-rich mergers at work in evolved galaxies at z?4. Massive starbursts would be at the origin of galaxy evolution initiated at the earliest epochs (z for=10). The possible relation with super massive black holes is still debated. © 2013 International Astronomical Union. 2012 Conference Paper http://hdl.handle.net/20.500.11937/23831 10.1017/S1743921313004365 restricted |
| spellingShingle | Rocca-Volmerange, B. Drouart, Guillaume Starburst and old population in z=3.8 radio galaxies with Pégase.3 |
| title | Starburst and old population in z=3.8 radio galaxies with Pégase.3 |
| title_full | Starburst and old population in z=3.8 radio galaxies with Pégase.3 |
| title_fullStr | Starburst and old population in z=3.8 radio galaxies with Pégase.3 |
| title_full_unstemmed | Starburst and old population in z=3.8 radio galaxies with Pégase.3 |
| title_short | Starburst and old population in z=3.8 radio galaxies with Pégase.3 |
| title_sort | starburst and old population in z=3.8 radio galaxies with pégase.3 |
| url | http://hdl.handle.net/20.500.11937/23831 |