22–24 oct. 2018
Paris
Fuseau horaire Europe/Paris

Deep observations with an ELT in the Global Multi Conjugated Adaptive Optics perspective

22 oct. 2018, 16:40
20m
Amphithéâtre Turing (Paris)

Amphithéâtre Turing

Paris

Université Paris Diderot Bâtiment Sophie Germain, niveau -1 8 place Aurélie Nemours - 75013 Paris
Oral contribution Wide Field Adaptive Optics

Orateur

Dr Elisa Portaluri (INAF - Osservatorio Astronomico di Padova)

Summary

Sky surveys are one of the symbols of the modern astronomy because they can allow big collaborations, exploiting multiple facilities and shared knowledge.
We investigated how the new generation of extremely large telescopes will perform in this field of research. In fact they will play a key role because of their angular resolution and their capability in collecting the light of faint sources.
Our simulations combine technical, tomographic and observational information, and benefit of the Global-Multi Conjugate Adaptive Optics (GMCAO) approach, a well demonstrated method that exploits only natural guide stars to correct the scientific field of view from the atmospheric turbulence. By simulating K-band observations of 6000 high redshift galaxies in the Chandra Deep Field South area, we have shown how an ELT can carry out photometric surveys successfully, recovering morphological and structural parameters. We present here a wide statistics of the expected performance of a GMCAO-equipped ELT in 22 well-known surveys in terms of SR.

Auteur principal

Dr Elisa Portaluri (INAF - Osservatorio Astronomico di Padova)

Co-auteurs

Dr Carmelo Arcidiacono (INAF - Osservatorio Astronomico di Padova) Dr Davide Greggio (INAF - Osservatorio Astronomico di Padova) Prof. Demetrio Magrin (INAF - Osservatorio Astronomico di Padova) Prof. Jacopo Farinato (INAF - Osservatorio Astronomico di Padova) Dr Marco Dima (INAF - Osservatorio Astronomico di Padova) Dr Maria Bergomi (INAF - Osservatorio Astronomico di Padova) Prof. Roberto Ragazzoni (INAF - Osservatorio Astronomico di Padova) Dr Valentina Viotto (INAF - Osservatorio Astronomico di Padova)

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