Starship Asterisk*

Type 2 Super Nova:

1, I was wondering weather or not, our solar systems Creator was a type 2 nova. With that said, would anything still remain from that early Stars formation of planets? If our sun was bigger and was able to go nova would it effect the outer Planets?

2 First question said,, Could we ever find anything older than our solar system. That remains from the last Stars solar system? (ie) more than 5 billion years old

3 Now given the huge Gas giants in our solar system Is it possible our last star was a binary system? And from the evidence that remains from the last Star/s, could we work out how big the Star/s was that gave birth to our solar system?

Thanks

Mark

mark swain wrote:1, I was wondering weather or not, our solar systems Creator was a type 2 nova.

Only indirectly. The material from which our system formed was the product of one or more earlier supernovas, and one proposed mechanism for triggering star formation in dust and gas clouds is shock waves produced by nearby supernovas.

With that said, would anything still remain from that early Stars formation of planets? If our sun was bigger and was able to go nova would it effect the outer Planets?

Dust particles. Probably nothing bigger. It is hard to imagine the amount of energy produced by a supernova; I don't think planets stand any chance of surviving except as very small debris. Also, planets represent just a tiny fraction of the mass of a star system (probably especially small in the case of stars massive enough to produce supernovas). I don't think we have any methods that could be used to distinguish between stellar and planetary dust produced after a supernova.

2 First question said,, Could we ever find anything older than our solar system. That remains from the last Stars solar system? (ie) more than 5 billion years old

Yes. Many meteorites (especially primitive carbonaceous chondrites) contain stardust, presolar grains that were formed before our solar system and which were therefore produced in older stars. Many mineralogically distinct types of stardust have been identified.

3 Now given the huge Gas giants in our solar system Is it possible our last star was a binary system? And from the evidence that remains from the last Star/s, could we work out how big the Star/s was that gave birth to our solar system?

As previously noted, it is unlikely there was a "last star". We are the product of a soup of material from many stars. Statistically, many or most of them were probably binaries, since that describes the stellar population in general. If you're suggesting that our gas giants are remnants of earlier stars, that isn't consistent with any accepted theories of star system formation. Everything in the Solar System, from the Sun outwards, is presumed to have formed from dust and gas at very nearly the same time.

Chris Peterson wrote:If you're suggesting that our gas giants are remnants of earlier stars, that isn't consistent with any accepted theories of star system formation. Everything in the Solar System, from the Sun outwards, is presumed to have formed from dust and gas at very nearly the same time.

No I wasn't ... However i was suggesting the left over gas and Matter that formed from the binary you described. Could in fact give us a clue as to what it was. everything adds up, and can show us what it was. The Sun, Saturn, Jupiter, Neptune, Uranus, And then there is the other stuff,, Matter that includes all the water and heavy elements. Add all this up and include the huge super nova as well.. it comes to more than one 3rd gen Star? But What you said has give me something to think about thanks Chris...

Mark

mark swain wrote:No I wasn't ... However i was suggesting the left over gas and Matter that formed from the binary you described. Could in fact give us a clue as to what it was. everything adds up, and can show us what it was. The Sun, Saturn, Jupiter, Neptune, Uranus, And then there is the other stuff,, Matter that includes all the water and heavy elements. Add all this up and include the huge super nova as well.. it comes to more than one 3rd gen Star? But What you said has give me something to think about thanks Chris...

The total volume of material that makes up our solar system is much less than what is produced in a single supernova. The reasoning behind the idea that this material came from multiple supernovas is that a supernova, by itself, is dispersive. Its material is ejected at much greater than the parent star's escape velocity. So a single supernova doesn't have any way to produce a new star system. What you need is a large cloud of gas and dust (and we see many of these) containing very much more material than a single supernova can produce. A combination of gravitic collapse and shock waves from energetic stars or explosions causes material concentrations, which form new stars. A fraction of the material in these new star systems may also form planets.

The product of supernovas seems to be pretty uniform. By that, I mean that you wouldn't be able to tell one remnant from another based on material type. The general distribution of elements found in the Sun is consistent with theory describing supernovas.

Hi Chris,

As it happens, star system/planetary formation is my main interest at the moment. Is there a site anywhere on the net which might be a good place to learn more about it? I have to start at the first year level; it's been a while since I last cracked the books.

Rob

Chris Peterson wrote:A combination of gravitic collapse and shock waves from energetic stars or explosions causes material concentrations, which form new stars. A fraction of the material in these new star systems may also form planets.

Is there a remnant of this huge cloud? Where is the evidence of the near Nova that made this cloud collapse? As you said in another thread. interstellar space is completely void of anything. Apart of the orb cloud which is something else i would like to know, how it came about.

Mark

mark swain wrote:Is there a remnant of this huge cloud? Where is the evidence of the near Nova that made this cloud collapse? As you said in another thread. interstellar space is completely void of anything.

Hi Mark,

In this thread http://asterisk.apod.com/vie ... =9&t=16783, in response to one of my questions, Chris said that the kind of dust and gas we see elsewhere in the universe is so nebulous it would be considered a good vacuum if we had a bottle of it here on Earth. Is that the remark you're thinking of? If so, that thread contains a good explanation of why we see such dust and gas, and by implication why there's enough of it to form planetary systems, while it remains so thin as to be essentially invisible if you're in it.

Rob

mark swain wrote:Is there a remnant of this huge cloud? Where is the evidence of the near Nova that made this cloud collapse? As you said in another thread. interstellar space is completely void of anything. Apart of the orb cloud which is something else i would like to know, how it came about.

No cloud remnants we can identify, and no supernova remnants we can associate with the formation of either the original dust and gas, or any shock waves. As our galaxy rotates, it completely scrambles the position of its contents. Stuff that was near us a few hundred million years ago is now far away. Our entire night sky has turned over a dozen or more times since the Earth formed.

Star forming regions (such as we now see in Orion) are short lived. They come together, spit out hundreds or thousands of new stars, and are used up in just a few million years. The region that formed our solar system is long since gone.

I didn't say that interstellar space is void of anything- in fact, I argued against calling such areas "voids". But certainly, the matter density in interstellar space is very low. But that doesn't prevent waves of material from different supernovas from coming together and creating transient nebulas with sufficient density to allow stars to form. Even there, however, the matter density is pretty low.

Thanks guys..


Mark