FLASH OF OTHER REFLECTIONS ON REFLECTION A planetary nebula is an emission nebula consisting of bright wrap expansion of plasma and ionized gas expelled during the asymptotic giant branch running through the red giant stars in the last moments of their lives.
In our galaxy there are records of something more than a thousand nebulae planetarias.Bien little before sunset that power, to say that it is a stage through which pass most of the stars.
components are exceptions alpha hydrogen, nitrogen and oxygen ionized, doubly ionized general. There has to be carbon
, but I am surprised that the box next page http://www.ing.iac.es/ ~ rcorradi / haloes / not entered his presence.
is argued that the collapse was caused by the star has exhausted the hydrogen necessary for the synthesis of new elements and thus produce an imbalance between the internal pressure and gravitational pressure upsets the star, but surprisingly the amount of hydrogen in planetary nebulae is dominant, inducing my misunderstanding, I thought of lonely abundance of oxygen and hydrogen from the decomposition of water and it is possible that the water was responsible for the death of the star.
If you look closely at the image
you can see the components that draw the radial lines comparable to radiation cometary bodies that sublimate the frozen water surface. Such
holding the internal pressure drop is responsible the collapse, I should be exactly the reverse, the internal pressure is greater and therefore responsible as parallel occurs in the sun to produce those big "flares" which are expelled, we perceive as the solar wind.
My logical reasoning leads me to consider the following sequence, the first has been overflowing internal pressure (red giant) who has escaped to the issue and then the remainder to the deficit generated by excess gravitational dwarf.
The core composed mainly of helium around which the star begins to burn hydrogen, is the first step of the red giant, I think that at this stage occurs a double short of the helium becomes carbon and hydrogen continuously synthesizing helium, this causes them to generate a significant increase in internal pressure makes the star expand.
Carbon does not leave, would stay in the dwarf, why not in the halo of the nebula. Well there
leave my concern and my question.
Other nebulae, Please tell generally composed of gas, dust, water, molecular matter for another cause, which fall in emission nebulae, reflection and absorption. Down
Horsehead Nebula, absorption
Witch Head Nebula,
emission
Orion Nebula, reflection
