Modelling high-resolution ALMA observations of strongly lensed dusty star-forming galaxies detected by Herschel
| العنوان: | Modelling high-resolution ALMA observations of strongly lensed dusty star-forming galaxies detected by Herschel |
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| المؤلفون: | Maresca, Jacob, Dye, Simon, Amvrosiadis, Aristeidis, Bendo, George, Cooray, Asantha, De , Zotti, Gianfranco, Dunne, Loretta, Eales, Stephen, Furlanetto, Cristina, González-Nuevo, Joaquin, Greener, Michael, Ivison, Robert, Lapi, Andrea, Negrello, Mattia, Riechers, Dominik, Serjeant, Stephen, Tergolina, Mônica, Wardlow, Julie |
| المصدر: | Monthly notices of the Royal Astronomical Society, 2022, Vol.512(2), pp.2426-2438 [Peer Reviewed Journal] Repositório Institucional da UFRGS Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
| بيانات النشر: | Oxford University Press, 2022. |
| سنة النشر: | 2022 |
| مصطلحات موضوعية: | Strong [Gravitational lensing], Lentes gravitacionais, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - Astrophysics of Galaxies, Settore FIS/05 - Astronomia e Astrofisica, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), Deslocamento para o vermelho, Astrophysics::Earth and Planetary Astrophysics, Galáxias, Structure [Galaxies], Astrophysics::Galaxy Astrophysics, gravitational lensing: strong –galaxies: structure |
| الوصف: | We present modelling of ~0.1arcsec resolution Atacama Large Millimetre/sub-millimeter Array imaging of seven strong gravitationally lensed galaxies detected by the Herschel Space Observatory. Four of these systems are galaxy-galaxy scale strong lenses, with the remaining three being group-scale lenses. Through careful modelling of visibilities, we infer the mass profiles of the lensing galaxies and by determining the magnification factors, we investigate the intrinsic properties and morphologies of the lensed sub-millimetre sources. We find that these sub-millimetre sources all have ratios of star formation rate to dust mass that is consistent with or in excess of the mean ratio for high-redshift sub-millimetre galaxies and low redshift ultra-luminous infrared galaxies. The contribution to the infrared luminosity from possible AGN is not quantified and so could be biasing our star formation rates to higher values. The majority of our lens models have mass density slopes close to isothermal, but some systems show significant differences. Comment: 12 pages, 5 figures. Submitted to MNRAS |
| وصف الملف: | application/pdf; text |
| تدمد: | 1365-2966 0035-8711 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38cbd04f9f68d228c37b4262cb8c5546 http://dro.dur.ac.uk/36050/1/36050.pdf |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....38cbd04f9f68d228c37b4262cb8c5546 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13652966 00358711 |
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