Rogério Rosenfeld Instituto de Física Teórica-UNESP ICTP...
Transcript of Rogério Rosenfeld Instituto de Física Teórica-UNESP ICTP...
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Física do Universo
Rogério Rosenfeld
Instituto de Física Teórica-UNESP
ICTP-SAIFR
LIneA
Ensino Médio – 2018
3a aula – 14/04
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Luz passando por um prisma é decomposta em
diferentes comprimentos de onda: espectro
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Cada elemento químico tem um espectro
característico – uma “impressão digital”.
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O Efeito Doppler
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Expansion of the universe
Universe has a history!
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Expansion of the universe
Universe has a history! 11
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http://hubblesite.org/image/4120/news_release/2018-12
The latest Hubble result is based on measurements of the parallax of eight newly analyzed Cepheids in our Milky Way galaxy. These stars are about 10 times farther away than any studied previously, residing between 6,000 light-years and 12,000 light-years from Earth
H0 = 73.45 ± 1.66 km/s Mpc−1
https://arxiv.org/abs/1801.01120
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Space itself expands and galaxies get a free “ride”.
Analogy of the expansion of the universe with a balloon:
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