La Radiación Flashcards by Cal W

Q

Ley de Stefan-Boltzmann:

A

F=σT^(4)

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Q

Flujo=

A

P/A=E/AT

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Q

Ley de Desplazamiento de Wien:

A

λmaxT=hc/5k (~3x10(^-3))

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Q

λmax es

A

the wavelength at which spectral radiance peaks

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Q

Luminosidad=

A

FxA (= Energía por unidad de tiempo)

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Q

L=

A

4πR^(2)F=4πR^(2)σT^(4)

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Q

magnitud aparente m

A

m=-2.5log(l/l0) l=luminosidad aparente/brillo

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Q

magnitud aparente depende de

A

la distancia de la estrella

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Q

magnitud absoluta M

A

M=-2.5log(L/L0)

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Q

L en terminos de l:

A

L=4πd^(2)l

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Q

Módulo de distancia m-M

A

m-M=5log(d(pc)) -5

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Q

m=M cuando

A

d=10pc

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Q

mU, mB, mV:

A

U, B, V

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Q

U-MU=5logd-5 = B-MB = V-MV :

A

B-V = MB-MV (índice de color)

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