astro r3 Flashcards
Que es el proceso de Kelvin-Helmholtz?
“Epot grav es liberada en la concentracion de un cuerpo
> se convierte en E termica
> aumento
de temperatura”
Mecanismo de explosion supernova II
if WD gets >1,4Mo u get a SN
if that results from collapse of Fe core > type II
> N* or BH
(1,4Mo = Chandrasekhar limit)
¿Qué dispara el mecanismo de explosión en una supernova de tipo la?
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Modelo de formación de sistemas planetarios
parts of HR diagram
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Evidencia para el agrupamiento jerárquico
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mecanismo explosion SN II
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why stars abs lines but quasars em lines?
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Evidencia aguj. negro
binarias [but 1 became a BH]
cuasares
“the flickering X-ray emission… of an acc disk”
v* around it (indicates v large mass)
The best evidence of stellar-mass black holes comes from binary star systems in which (1) one star of the pair is not visible, (2) the flickering X-ray emission is characteristic of an accretion disk around a compact object, and (3) the orbit and characteristics of the visible star indicate that the mass of its invisible companion is greater than 3 Mo. A number of systems with these characteristics have been found. Black holes with masses of millions to billions of solar masses are found in the centers of large galaxies.
Problemas método v radial
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