Cosmologíá Flashcards

1
Q

Desplazamiento al rojo z:

A

z=v/c

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2
Q

La mayoría de las galaxias presenta…

A

desplazamiento al rojo, z>0

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3
Q

cz=v=

A

cz=v=Hd

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4
Q

Tiempo de Hubble:

A

t0=r/v=1/H0

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5
Q

Valor de H0:

A

H0=71km/s

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6
Q

valor de t0:

A

t0=13 790 millones de anos, suponiendo un ritmo de expansión constante.

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7
Q

Energía oscura causa…

A

aceleración de la expansión

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8
Q

densidad crítica ρc

A

ρc=3H0^(2)/8πG

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9
Q

ρ0>ρc, E<0

A

Universo cerrado, Big Crunch

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10
Q

ρ0=ρc, E=0

A

plano, se mantiene en expansión para siempre

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11
Q

CMBR T0=

A

2.7K

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12
Q

ρ00

A

Universo abierto, expansión durará por siempre

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