Is there anybody out there vardeegnens 2014 04 01

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Is there anybody out there? Lars V. T. Occhionero, [email protected] Vardeegnens Gymnasieforberedende Efterskole, 04. Januar 2014

description

Talk about Life in the universe: From the creation of the universe, to stellar and planetary formation, to possible life in the solar system and beyond

Transcript of Is there anybody out there vardeegnens 2014 04 01

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Is there anybody out there?

Lars V. T. Occhionero, [email protected]

Vardeegnens Gymnasieforberedende Efterskole, 04. Januar 2014

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Drake Ligningen

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Relativitetsteorien

Generel Relativitetsteori

Beskrivelse af tyngdekraften

Ustabil Univers Kosmologisk

Konstant

8πG

c4 T μ ν=Rμν−12gμ ν R+gμ ν Λ

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Hubble to the rescue!

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Big Bang Model

George Lemaître Skabelse fra et punkt:

Singularitet

Fred Hoyle Steady State Kontinuerlig dannelse

af materiale

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Isotropi og Homogenitet

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CMB

Teori af George Gamow

Fundet af Penzias og Wilson

Hornantenne Bell Laboratories

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CMB

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CMB – COBE

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CMB – COBE – Spektrum

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CMB – WMAP

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CMB - Planck

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Komposition af energi Stof

Baryonisk Stof Mørk Stof

Stråling Krumning Mørk Energi (Kosmologisk Konstant)

Friedmann Ligningen (FLRW-metrik)

H 2

H 02=R a

−4M a

−3 a

−2

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Universet i dag:

Geometri: FLAD Stråling: Stor set neglicibel Stof:

Baryonisk Stof: 4% Mørk Stof: 23%

Mørk Energi: 73 % (!!)

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Udvikling af Universet

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Det tidlige univers

Atomer i det tidlige univers: Brint: 75% Helium 24.9% Lithium og Berylium (Meget meget lidt)

Hvor stammer resten af grundstofferne fra?

Stjerner

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STJERNER!

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Stjernedannelse

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Stjerneudvikling

Kamp mellem Tryk og Tyngdekraft

”Store og Små” stjerner

Stjerner i ligevægt → Hovedserien

Energiproduktion v. Fusion

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Stjerneudvikling

HR-diagram ”Små” stjerner →

M<1.5Msol ”Store” stjerner →

M>1.5Msol

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Stjerneudvikling

HR-diagram ”Små” stjerner →

M<1.5Msol ”Store” stjerner →

M>1.5Msol

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Energiproduktion

Fusion P-P-kæde

4H → He

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Bindingsenergi

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Udvikling af ”Små” stjerner

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Udvikling af ”Store” stjerner

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Supernova

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Grundstoffer

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Grundstoffer

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Planetdannelse

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Planetdannelse

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Exoplaneter

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Første Exoplanet - 1995

Mayor & Queloz

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1040

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Transit

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Radialhastighed

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Mikrolinser

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Planeter

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Planeter - Kepler

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Planeter – Og deres stjerner

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Tage billeder af planeter...

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Planeter – andre tricks

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Planeter - atmosfære

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Er der liv?

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… og Jorden

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Kemi i Rummet

Kemi i omgivelser v. stjernedannelse Fund af flere komplekse molekyler v.

spektroskopi Organiske molekyler i kometer

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Astrobiologi

Hvorfra stammer livet?

Atmosfæren

Miller-Urey Eksperimentet

Hydrotermiske huller Tidevandspytter Rummet

Leveret gennem støv og kometer

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Mars

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Mars - Floder

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Europa

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Europa – Fisketur?

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Enceladus

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Voyager & Pioneer

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Radioteleskopi

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Prøve at ringe sammen...

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Hvor kommer vi fra?

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HDF

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40.000.000.000.000.000.000.000

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To boldly go where no man has gone before

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To boldly go where no man has gone before

Tak for opmærksomheden

[email protected] - about.me/lars.occhionero – www.occhionero.dk