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[Fizinfo] Meghívó az ELI ALPS szemináriumára


Chronological Thread 
  • From: Zimányiné Horváth Vera <Vera.Horvath AT eli-alps.hu>
  • To: "fizinfo AT lists.kfki.hu" <fizinfo AT lists.kfki.hu>
  • Subject: [Fizinfo] Meghívó az ELI ALPS szemináriumára
  • Date: Tue, 30 Apr 2024 07:49:12 +0000
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Előadó: Murthy S. Gudipati (Senior Research Scientist, Science
Division, NASA Jet Propulsion Laboratory, California Institute of Technology,
Pasadena, USA)
Cím: Understanding Radiation Processing of Astrophysical
and Planetary Ice and Atmosphere Analogs

Helyszín: ELI ALPS C-128 (Szeged, Wolfgang Sandner utca 3.)
Időpont: 2024. május 3. 10 óra

Az előadás rövid összefoglalója:

One of the key goals of astrochemistry is to simulate astrophysical and
planetary conditions in the laboratory in order to understand physical and
chemical processes that occur in those environments. Astrophysical and
planetary conditions range from ultracold molecular clouds to hot
exoplanetary atmospheres, covering gas, liquid, and solid phases at ultrahigh
vacuum to megabar pressures, radiation from stars, cosmic rays, and local
magnetospheric radiation environments, requiring broad range of researchers
to contribute to the field of astrochemistry. Our contribution has been in
two fields: (a) physics and chemistry of ice and organics in radiation
environments; (b) simulations of exoplanet atmospheres simulating
photochemistry at high-temperatures in the gas-phase.

At the Ice Spectroscopy Laboratory (ISL) at JPL, we conducted Lya
UV-photolysis of astrophysical ices and showed that the formation of
molecules of life such as HCN, formamide, etc., demonstrating that some of
the key organic molecules needed for the origin of life could have already
formed in the interstellar ice grains [1]. Significant new experimental and
observational data are needed to close the knowledge gaps in this area of
research, which is critical to test the hypothesis that early bombardment
from comets and asteroids about 4 billion years ago would have brought water
and organic molecules to Earth kickstarting origin of life on Earth [2-4].

Further research activities in our lab over the past decade simulating
radiation processing of planetary ices - atmospheric and surface - will be
discussed. Our most recent work on simulating photochemistry of
high-temperature exoplanet atmospheres will also be discussed.

Acknowledgment: This work was carried out at the Jet Propulsion Laboratory,
California Institute of Technology, under a contract with the National
Aeronautics and Space Administration (NASA). Funding from NASA through DDAP,
HW, NFDAP, SSW, and XRP programs is acknowledged.

References:
1. Henderson, B.L. and M.S. Gudipati, Astrophysical Journal, 2015.
800(1): p. 66.
2. Greenberg, J.M., Instruments, Methods, and Missions for the
Investigation of Extraterrestrial Microorganisms, ed. R.B. Hoover. Vol. 3111.
1997. 226-237.
3. Huebner, W.E. and D.C. Boice, Origins of Life and Evolution of
the Biosphere, 1992. 21(5-6): p. 299-315.
4. Altwegg, K., et al., Science Advances, 2016. 2(5).

A szemináriumon minden érdeklődőt szívesen látunk.
Az előadás az alábbi link segítségével online is meghallgatható:
https://teams.microsoft.com/l/meetup-join/19%3ameeting_NmM1MTFiYmYtYzQ2Ny00ZmVkLWE0NDItMGMyZjExNTdmM2Y3%40thread.v2/0?context=%7B%22Tid%22%3A%22b207389a-c5cb-4cb0-a1ad-227b94e96448%22%2C%22Oid%22%3A%22c993efcb-59ae-4652-9f68-d7a313727128%22%2C%22IsBroadcastMeeting%22%3Atrue%2C%22role%22%3A%22a%22%7D&btype=a&role=a


Üdvözlettel:

ZIMÁNYINÉ HORVÁTH Vera
Látogatóközpont-vezető
Tel: +36 70 491 14 12
Email: vera.horvath AT eli-alps.hu<mailto:vera.horvath AT eli-alps.hu>

[cid:image001.png AT 01DA9AE3.A8337810]
The Extreme Light Infrastructure ERIC | ALPS Facility
Wolfgang Sandner utca 3., H-6728 Szeged, Hungary
www.eli-laser.eu<http://www.eli-laser.eu/> |
www.eli-alps.hu<https://www.eli-alps.hu/>




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  • [Fizinfo] Meghívó az ELI ALPS szemináriumára, Zimányiné Horváth Vera, 04/30/2024

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