High-contrast imaging observations of exoplanets: where we are, where we go

  • Data: 26 maggio 2016 dalle 14:00 alle 15:00

  • Luogo: Aula Seminari, piano -1, via Ranzani, 1, Bologna

Contatto di riferimento:

Partecipanti: Valentina D'Orazi (INAF, Osservatorio Astronomico di Padova)

Abstract

Thanks to notable advancements in adaptive optics combined with coronagraphic observational strategies, high-contrast imaging techniques are rapidly progressing in the current years. The exploration of the sub-stellar regime via direct imaging, hampered so far by technical limitations, is starting to provide us with a powerful tool, thanks to the advent of new-generation instruments, such as e.g., GPI or ScEXAO. SPHERE at VLT is a new facility that combining extreme adaptive optics with coronagraphy, dual-band imaging, and integral field spectroscopy has recently started its operations and aims at revealing relatively massive exoplanets at few tenths of arcsecondseparations and contrasts better than 10^6.In this contribution I will present recent results obtained with SPHERE in the framework of the exoplanet detection and characterisation. Moreover, I will present a new system for coronagraphy with high-order adaptive optics that will be operating at LBT by the end of 2018: SHARK. This system will provide coronagraphic observations from visual to NIR bands, granting a very powerful tool that is not currently available for any other instrument in the world.Finally, I will discuss the employment of a brand-new technique that combines high-contrast imaging with high-dispersion spectroscopy, allowing in principle to reach contrasts down to 10^10. In the era of E-ELT, this will open the way to investigating earth-like planets in the habitable zones of their parent stars.

See you on Thursday in sala seminari, Via Ranzani 1, floor -1, on time at 14:00.

 

Next seminars:

* Tuesday May 31st, at 14:00 Margherita Giustini (SRON, NL)

* Thursday June 9th, at 14:00 Gargely Popping (ESO, Garching, DE)

* Thursday June 16th, at 14:00 NO SEMINAR

* Thursday June 23rd, at 14:00 Monica Tosi (INAF, OABo)

* Tuesday July 26th, at 14:00 Fabio Vito (Penn State Univ., US)

 

The complete list of seminars is available at: http://davide2.bo.astro.it/?page_id=4531


The organizers of seminars: