What if – A New Born Star Develops Near our Galaxy
23 Oct 2005 13:30:04 UTC
Topic 190051
(moderation:
Recently I read a posting on Planet Quest that poses an interesting, possible (perhaps) scenario.
There are theories like big bang, Energy/mass transformation etc. Just
imagine what will happen if suddenly a new star is born near our Galaxy
or within our Galaxy.
First of all, is it possible that a star takes birth anywhere or are
there any prerequisites for a star to form? May be high intensity of
energy has to be present so that it transforms itself into matter and
then the new born stars exerting gravitational forces all around
because of its newly aquired mass. It may disturb the balance within
our Galaxy and our Solar System. What is the probability of this to
happen?
My question is; could this event possibly concur?
Regards,
Tom
What if – A New Born Star Develops Near our Galaxy
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The "newly acquired mass" would already be present in extra energy as defined by M=E/C^2. The extra energy could possibly be converted to matter but all known process for creating normal matter (electron, protons, etc) also creates anti-particles in equal numbers. Statistically it is unlikely that substantially more anti-matter than matter could escape the contracting mass concentration. It is more likely (IMHO) that the extra energy would decay into thermal energy and possibly destroy the MC or at least strongly delay the contraction.
Normal star formation takes
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Normal star formation takes place when a local part of a interstellar gas cloud becomes dense enough to collapse under its own gravity and when the collapse has gone far enought the pressure and temperature get high enought to start fusion within the collapsing cloud.
Since the star is formed from matter which is already present in the gas cloud ther is no big change in the gravitational effetc on far away objects, but things very close to the forming star will notice the change. If thigns work out well ti can for example hold on to a few planets which are created at more or less the same time as the star.
Not sure about this answer,
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Not sure about this answer, but happy to have it critiqued here:
In an interstellar medium seeded with normal matter, with a sufficient amount of energy in excess of the medium's ability to absorb it thermally, possibly with TeV black holes acting as “buffers” or “catalysts”, the formation of new normal matter would be the only way for the excess energy to “radiate” (since antimatter formed in the reaction goes right back to energy).
Perhaps a good example of an extreme case is the Cartwheel galaxy, in the Sculptor group. The excess energy was in the form of a near head-on collision between galaxies, and stars are forming in the wake of the 'cosmic tsunami':
There is no need to involve
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There is no need to involve black holes here. It is not expected that new matter will form in a collision between two galaxies. This type of event looks very powerwful on a large scale but there is not really anything energetic enough going on which can create matter.
The new stars created in this type of collision comes from compression waves going through the gas sourrounding the galaxy. When the gas is compressed the process of normal star formation is initiated. But it is all based on ordinary matter which is already there.
Thanks, klasm – I didn't see
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Thanks, klasm – I didn't see your first post when I was composing mine, and was focused on the 'newly acquired mass' aspect – sorry to make you repeat yourself – I wasn't sure if sufficient mass was already present...
Well, I do think it is
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Well, I do think it is possible for new matter to directly form a star. If that much matter is created in one area, most of the matter and antimatter would come back together to form enrgy. Most stars are born from nebulas and remaning hydrogen gas left over from novas. Remember, most matter was created at the beginning of our universe. You would need much much more energy to create all the matter for the star then the star would put out in its whole lifetime using fusion.
More good data on 'tidal
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More good data on 'tidal dwarf galaxies' (TDGs) formation, from Spitzer...
RE: Well, I do think it is
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If I may ask. Is ther no research on the fact that energy or the motion of one molecule one width of itself creates energy, and that energy cannot be created but simply reconfigured into different wavelength's or rates of motion, thereby forming differnt attractive attributes to opposite particles, therby creating one infitesimal amount of heat thus binding the particles? If this is the case if enough particulate can or could be drawn in a short enough time frame, a new star or Concussive nebulae could be created almost anyplace all the necessary agents are found. I know that in all that we call space and not Planets Stars or other known visible energy sources, there is a vast amount of dust and motion.Therefore if the correct progression of the Agents are present, this would be possible anyplace in the universe and we see this all the time but just attribute this to a given region where this density of required elements is vissible?
Art: I have read and reread
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Art:
I have read and reread your post several times and am now going to attempt to an answer.
The mathematical physics that used to describe how stars form does in fact take into account the shifting forms of energy. In fact according the theory it is harder to form star in the early (dust free) universe than it is in the current universe. As I believe you are suggesting the escape of some of that energy into the wider cosmos is essential for the formation of a star. Dust, which is to say the products of earlier generations of stars plays a prominent role in star formation in the current era.
There is an essential criteria called Jean’s Mass (try googling it) that places limits on circumstances under which a star can form.
I have read about several alternative applications of the basic ideas involved in defining Jean’s Mass. The first and more probable is that it is possible that in the early universe matter stepped around the star formation process and went directly to creating super massive black holes. The other and probably defunct idea was the Thermal Geon. This was an object which consisted of nothing other than electro-magnetic energy but was bound by its gravitational attraction in the same sense that stars and planets are. The later was studied briefly around 1970 but ultimately dismissed as intrinsically unstable.
RE: Well, I do think it is
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Are you referring to "new" matter as hydrogen that has spent it's entire existence in a non-molecular state? But it would seem the terms new or old have little meaning as it would appear that all matter is of the same age regardless of the form it may take.
Of course many stars are formed from the "leftovers" of supernovas and the energy they provide to trigger the process, but I would doubt that most stars began their life by this mechanism. Although we may be unsure of the processes involved, I would suspect that far more stars were formed during the initial formation of galaxies (quasars?) that took place after the the Big Bang and the period of cooling that followed.
F. Prefect
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