Objectif This project exploits gravitational lensing to investigate the early, dust-obscured, phase in the formation of elliptical galaxies in order to better understand the mechanisms driving their intense star formation and their subsequent evolution. Elliptical galaxies are in fact the oldest and most massive galaxies observed in the Universe today and, as such, they represent a challenge for the standard bottom-up scenario for dark matter structure formation, according to which massive galaxies formed late. The early stages of the formation of elliptical galaxies are best probed at far-infrared/sub-millimeter wavelengths, where the UV/optical radiation of the newly formed is reprocessed by dust. The project exploits observations at those wavelengths performed with the Herschel Space Observatory as part of the Cardiff-led Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) to identify proto-elliptical galaxies that have been gravitationally lensed. The identification of lensing events is done using a new methodology proposed by the applicant that was validated on the first data collected with H-ATLAS. Thanks to the increase in spatial resolution and in apparent luminosity provided by lensing the derived sample of lensed proto-ellipticals will be used to map the structure and dynamics of these objects down to sub-kpc scale where different scenario of galaxy formation can be tested. Champ scientifique sciences naturellessciences physiquesastronomieastrophysiquematière noiresciences naturellessciences physiquesastronomiecosmologie physiqueformation et évolution de la galaxie Programme(s) H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions Main Programme H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility Thème(s) MSCA-IF-2015-EF - Marie Skłodowska-Curie Individual Fellowships (IF-EF) Appel à propositions H2020-MSCA-IF-2015 Voir d’autres projets de cet appel Régime de financement MSCA-IF-EF-ST - Standard EF Coordinateur CARDIFF UNIVERSITY Contribution nette de l'UE € 183 454,80 Adresse Newport road 30 36 CF24 0DE Cardiff Royaume-Uni Voir sur la carte Région Wales East Wales Cardiff and Vale of Glamorgan Type d’activité Higher or Secondary Education Establishments Liens Contacter l’organisation Opens in new window Site web Opens in new window Participation aux programmes de R&I de l'UE Opens in new window Réseau de collaboration HORIZON Opens in new window Autres sources de financement € 0,00
