ELFT HÍRADÓ

[Jároli Erika <jaroli.erika AT titkarsag.mta.hu>]

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A Magyar Tudományos Akadémia Fizikai Tudományok Osztálya tisztelettel
meghívja Önt



THOMAS HENNING, az MTA tiszteleti tagja



Towards the Discovery of Baby Planets című székfoglaló előadására



Az előadás ideje: 2022. március 30. (szerda) 14.00 óra



Az előadás helyszíne: MTA Székház, Díszterem

(1051 Budapest, Széchenyi István tér 9. I. emelet)



Az előadás felvételről az MTA YouTube-csatornáján is megtekinthető lesz.

Az előadás összefoglalója:

In order to make progress in understanding the formation of planetary
systems we need to combine comprehensive observing programs, theoretical
modeling, and dedicated laboratory experiments. This is the research
program my team at the Max Planck Institute for Astronomy in Heidelberg
established with close connections to Konkoly Observatory.
Our solar system formed 4.567 Billion years ago. Today's structure and
dynamics of our planetary system together with cosmochemical constraints
provide the basis for reconstructing the early history of its formation.
With population synthesis simulations - based on planet formation theories
- we are trying to build a bridge between the properties of planet-forming
gas-dust disks around young stars and mature planetary systems. Such
models have achieved some success, but need more guidance from
observations.
Nearly all of the more than 4000 exoplanets discovered so far orbit mature
stars and have been detected by indirect techniques, not direct imaging.
How much better would it be for our understanding of planet formation to
directly image a planet in its birth environment? In order to achieve this
goal one needs to push the technique of adaptive optics at 10m-class
telescopes to its limits. Together with sophisticate data analysis tool we
are now coming closer to reach this goal. Indeed, we discovered and
directly imaged the very young planet PDS 70b in its birth environment.
Soon after this detection a second planet has been discovered in the same
system. Both planets are still accreting gas from their parental disk and
seem to be in resonance. The planet-forming disk is characterized by
long-wavelength ALMA observations, demonstrating the importance of
multi-wavelength data in modern astronomy.





A székfoglaló kivonata és meghívója innen tölthető le:

https://mta.hu/xi-osztaly/thomas-henning-az-mta-tiszteleti-tagja-akademiai
-szekfoglaloja-112001



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Üdvözlettel: Jároli Erika osztálytitkár