Yes, stars do blueshift right into one another, worse yet when
galaxies merge and then multiple thousands of stars get to play
Newtonian assisted chicken with one another at roughly the same time
(worse yet if things are going retrograde), as well as massive
molecular clouds producing stellar offspring as rogue star systems
that easily become gravity dominate within their terrific tidal radii
that’s brand new to the existing stars and solar systems of that same
area (the original Sirius star system of <12.5 Ms comes to mind).
~ BG
You do realize that stars that form from various gas clouds don't have
nearly as much mass as the original clouds they came from, right? The
original gas cloud outweighs any stars coming from them, 10:1 or more.
So a new star that forms near existing stars is not going to have any
kind of sudden gravitational effect on the existing stars, since the
original gas cloud did whatever perturbation was going to happen already.
Yousuf Khan
Correct, whereas it took a molecular cloud of 1.25e6 < 1.25e7 Ms in
order to produce the nearby Sirius star system.
>
>The original gas cloud outweighs any stars coming from them, 10:1 or
> more.
It's more like a minimum of 1000:1, and more typically <1e6:1
>
> So a new star that forms near existing stars is not going to have any
> kind of sudden gravitational effect on the existing stars, since the
> original gas cloud did whatever perturbation was going to happen already.
>
> Yousuf Khan
How very correct. What would a 1.25e7 Ms at 10 ly distance or even
100 ly do to our solar system?
What would the 6 Ms Sirius(B) nova do to us?
~ BG
Mitch Raemsch
No proof that stars come from molecular clouds?
What silly alternative is there for creating stars like the nearby
Sirius system?
~ BG
There are no rogue stars. This is a misinterpretation of data in
astronomy.
Mitch Raemsch
Sirius A is 2 solar masses, while Sirius B is slightly less than 1 solar
mass. 3 solar masses in total for the system, not 6.
Yousuf Khan