A new look at local ultraluminous infrared galaxies: The atlas and radiative transfer models of their complex physics
We present the ultraviolet to submillimetre spectral energy distributions (SEDs) of the HERschel Ultra Luminous Infrared Galaxy Survey (HERUS) sample of 42 local ultraluminous infrared galaxies (ULIRGs) and fit them with a Markov chain Monte Carlo code using the CYprus models for Galaxies and their...
| Autores: | ; ; ; ; ; ; ; ; ; ; ; ; ; |
|---|---|
| Tipo de documento: | Artículo |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Universidad de Alcalá (UAH) |
| Repositorio: | e_Buah Biblioteca Digital Universidad de Alcalá |
| Lenguaje: | Inglés |
| OAI Identifier: | oai:ebuah.uah.es:10017/67709 |
| Acceso en línea: | http://hdl.handle.net/10017/67709 https://dx.doi.org/10.1093/mnras/stab3642 |
| Nivel de acceso: | Acceso abierto |
| Palabra clave: | Radiative transfer Galaxies: active Galaxies: interactions Quasars: general Infrared: galaxies Submillimetre: galaxies Astronomía Astronomy |
| _version_ | 1878734809781501952 |
|---|---|
| author | Efstathiou, A. |
| author2 | Farrah, D. Afonso, J. Clements, D.L. González Alfonso, Eduardo|||0000-0001-5285-8517 Lacy, M. Oliver, S.J. Papadopoulou, L.V. Pearson, C. Rigopoulou, D. Rowan Robinson, M. Spoon, H.W.W. Verma, A. Wang, L. |
| author2_role | author author author author author author author author author author author author author |
| author_browse | Afonso, J. Clements, D.L. Efstathiou, A. Farrah, D. González Alfonso, Eduardo|||0000-0001-5285-8517 Lacy, M. Oliver, S.J. Papadopoulou, L.V. Pearson, C. Rigopoulou, D. Rowan Robinson, M. Spoon, H.W.W. Verma, A. Wang, L. |
| author_facet | Efstathiou, A. Farrah, D. Afonso, J. Clements, D.L. González Alfonso, Eduardo|||0000-0001-5285-8517 Lacy, M. Oliver, S.J. Papadopoulou, L.V. Pearson, C. Rigopoulou, D. Rowan Robinson, M. Spoon, H.W.W. Verma, A. Wang, L. |
| author_role | author |
| collection | e_Buah Biblioteca Digital Universidad de Alcalá |
| description | We present the ultraviolet to submillimetre spectral energy distributions (SEDs) of the HERschel Ultra Luminous Infrared Galaxy Survey (HERUS) sample of 42 local ultraluminous infrared galaxies (ULIRGs) and fit them with a Markov chain Monte Carlo code using the CYprus models for Galaxies and their NUclear Spectra (CYGNUS) radiative transfer models for starbursts, active galactic nucleus (AGN) tori, and host galaxy. The Spitzer IRS spectroscopy data are included in the fitting. Our Bayesian SED fitting method takes comparable time to popular energy balance methods but it is more physically motivated and versatile. All HERUS galaxies harbour high rates of star formation but we also find bolometrically significant AGN in all of the galaxies of the sample. We estimate the correction of the luminosities of the AGN in the ULIRGs due to the anisotropic emission of the torus and find that it could be up to a factor of similar to 10 for nearly edge-on tori. We present a comparison of our results with the smooth torus model of Fritz et al. and the two-phase models of Siebenmorgen et al. and SKIRTOR. We find that the CYGNUS AGN torus models fit significantly better the SEDs of our sample compared to all other models. We find no evidence that strong AGN appear either at the beginning or end of a starburst episode or that starbursts and AGN affect each other. IRAS 01003-2238 and Mrk 1014 show evidence of dual AGNs in their SED fits, suggesting a minimum dual AGN fraction in the sample of 5 per cent. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_705415bb8fc2f5439954d52db76d79e2 |
| institution | Universidad de Alcalá (UAH) |
| instname_str | Universidad de Alcalá (UAH) |
| language | eng |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:ebuah.uah.es:10017/67709 |
| publishDate | 2022 |
| publishDateSort | 2022 |
| publisher | Oxford Academic |
| publisherStr | Oxford Academic |
| reponame_str | e_Buah Biblioteca Digital Universidad de Alcalá |
| spelling | A new look at local ultraluminous infrared galaxies: The atlas and radiative transfer models of their complex physics Efstathiou, A. Farrah, D. Afonso, J. Clements, D.L. González Alfonso, Eduardo|||0000-0001-5285-8517 Lacy, M. Oliver, S.J. Papadopoulou, L.V. Pearson, C. Rigopoulou, D. Rowan Robinson, M. Spoon, H.W.W. Verma, A. Wang, L. Radiative transfer Galaxies: active Galaxies: interactions Quasars: general Infrared: galaxies Submillimetre: galaxies Astronomía Astronomy We present the ultraviolet to submillimetre spectral energy distributions (SEDs) of the HERschel Ultra Luminous Infrared Galaxy Survey (HERUS) sample of 42 local ultraluminous infrared galaxies (ULIRGs) and fit them with a Markov chain Monte Carlo code using the CYprus models for Galaxies and their NUclear Spectra (CYGNUS) radiative transfer models for starbursts, active galactic nucleus (AGN) tori, and host galaxy. The Spitzer IRS spectroscopy data are included in the fitting. Our Bayesian SED fitting method takes comparable time to popular energy balance methods but it is more physically motivated and versatile. All HERUS galaxies harbour high rates of star formation but we also find bolometrically significant AGN in all of the galaxies of the sample. We estimate the correction of the luminosities of the AGN in the ULIRGs due to the anisotropic emission of the torus and find that it could be up to a factor of similar to 10 for nearly edge-on tori. We present a comparison of our results with the smooth torus model of Fritz et al. and the two-phase models of Siebenmorgen et al. and SKIRTOR. We find that the CYGNUS AGN torus models fit significantly better the SEDs of our sample compared to all other models. We find no evidence that strong AGN appear either at the beginning or end of a starburst episode or that starbursts and AGN affect each other. IRAS 01003-2238 and Mrk 1014 show evidence of dual AGNs in their SED fits, suggesting a minimum dual AGN fraction in the sample of 5 per cent. Oxford Academic http://hdl.handle.net/10017/67709 https://dx.doi.org/10.1093/mnras/stab3642 |
| spellingShingle | A new look at local ultraluminous infrared galaxies: The atlas and radiative transfer models of their complex physics Efstathiou, A. Radiative transfer Galaxies: active Galaxies: interactions Quasars: general Infrared: galaxies Submillimetre: galaxies Astronomía Astronomy |
| title | A new look at local ultraluminous infrared galaxies: The atlas and radiative transfer models of their complex physics |
| title_full | A new look at local ultraluminous infrared galaxies: The atlas and radiative transfer models of their complex physics |
| title_fullStr | A new look at local ultraluminous infrared galaxies: The atlas and radiative transfer models of their complex physics |
| title_full_unstemmed | A new look at local ultraluminous infrared galaxies: The atlas and radiative transfer models of their complex physics |
| title_short | A new look at local ultraluminous infrared galaxies: The atlas and radiative transfer models of their complex physics |
| title_sort | A new look at local ultraluminous infrared galaxies: The atlas and radiative transfer models of their complex physics |
| topic | Radiative transfer Galaxies: active Galaxies: interactions Quasars: general Infrared: galaxies Submillimetre: galaxies Astronomía Astronomy |
| topic_facet | Radiative transfer Galaxies: active Galaxies: interactions Quasars: general Infrared: galaxies Submillimetre: galaxies Astronomía Astronomy |
| url | http://hdl.handle.net/10017/67709 https://dx.doi.org/10.1093/mnras/stab3642 |