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Fewer stars form as galaxies run out of gas



 
 
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  #1  
Old August 22nd 11, 11:53 PM posted to sci.physics,sci.astro
Yousuf Khan[_2_]
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Default Fewer stars form as galaxies run out of gas

Fewer stars form as galaxies run out of gas | TG Daily
http://www.tgdaily.com/space-feature...run-out-of-gas

  #2  
Old August 29th 11, 05:59 AM posted to sci.physics,sci.astro
Brad Guth[_3_]
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Default Fewer stars form as galaxies run out of gas

On Aug 22, 3:53*pm, Yousuf Khan wrote:
Fewer stars form as galaxies run out of gas | TG Dailyhttp://www.tgdaily.com/space-features/58015-fewer-stars-form-as-galax...


A galaxy that's venting 13 Ms/sec is certainly running out of
molecular gas.

There must be a lot of wandering molecular gas filling the IGM.

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  #3  
Old August 30th 11, 12:13 AM posted to sci.physics,sci.astro
Yousuf Khan[_2_]
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Posts: 1,692
Default Fewer stars form as galaxies run out of gas

On 29/08/2011 12:59 AM, Brad Guth wrote:
On Aug 22, 3:53 pm, Yousuf wrote:
Fewer stars form as galaxies run out of gas | TG Dailyhttp://www.tgdaily.com/space-features/58015-fewer-stars-form-as-galax...


A galaxy that's venting 13 Ms/sec is certainly running out of
molecular gas.


How much longer are you going to just keep making stuff up out of the
air comes from your ass?

Yousuf Khan
  #4  
Old August 30th 11, 01:15 AM posted to sci.physics,sci.astro
Brad Guth[_3_]
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Default Fewer stars form as galaxies run out of gas

On Aug 29, 4:13*pm, Yousuf Khan wrote:
On 29/08/2011 12:59 AM, Brad Guth wrote:

On Aug 22, 3:53 pm, Yousuf *wrote:
Fewer stars form as galaxies run out of gas | TG Dailyhttp://www.tgdaily.com/space-features/58015-fewer-stars-form-as-galax...


A galaxy that's venting 13 Ms/sec is certainly running out of
molecular gas.


How much longer are you going to just keep making stuff up out of the
air comes from your ass?

* * * * Yousuf Khan


My bad. Make that 13 Ms/year.

There’s galaxies venting large or rather enormous outer molecular
clouds that should be creating new stars and planets like crazy, and
yet the amount of escaping molecular mass (2.575e31 kg/year) with
hardly any new stars showing up seems to suggest otherwise.
http://astrobites.com/2011/04/15/und...w-in-ngc-1266/
http://www.astronomynow.com/news/n1101/12NGC1266/
“Furthermore, this gas is being expelled by a powerful 400-kilometre
per second outflow at a rate of 13 solar masses (the Sun’s mass is
1.98 x 1030 kilograms) per year. If the galaxy keeps up this current
rate of outflow, NGC 1266 will have exhausted all its molecular gas
within 85 million years, leaving it ‘red and dead’.”

Sorry about that.

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  #5  
Old August 30th 11, 06:28 AM posted to sci.physics,sci.astro
Yousuf Khan[_2_]
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Posts: 1,692
Default Fewer stars form as galaxies run out of gas

On 29/08/2011 8:15 PM, Brad Guth wrote:
On Aug 29, 4:13 pm, Yousuf wrote:
On 29/08/2011 12:59 AM, Brad Guth wrote:

On Aug 22, 3:53 pm, Yousuf wrote:
Fewer stars form as galaxies run out of gas | TG Dailyhttp://www.tgdaily.com/space-features/58015-fewer-stars-form-as-galax...


A galaxy that's venting 13 Ms/sec is certainly running out of
molecular gas.


How much longer are you going to just keep making stuff up out of the
air comes from your ass?

Yousuf Khan


My bad. Make that 13 Ms/year.


Well, that's bull**** made-up-number as well!

As a matter of fact, today there was a conflicting study suggesting that
the Milky Way is actually pulling in more gas from the Intergalactic
Medium, at a rate that makes its inflow rate almost equal to exactly the
number of stars its produces in a year. The MW produces between 0.6-1.45
SM of new stars per year. And apparently it draws in between 0.8-1.4 SM
of gas from IGM per year also. Ironically Both the ranges centers around
1 solar mass per year!

Milky Way stars born from intergalactic gas - physicsworld.com
http://physicsworld.com/cws/article/news/47033

Yousuf Khan

  #6  
Old August 30th 11, 06:53 AM posted to sci.physics,sci.astro
Brad Guth[_3_]
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Posts: 15,175
Default Fewer stars form as galaxies run out of gas

On Aug 29, 10:28*pm, Yousuf Khan wrote:
On 29/08/2011 8:15 PM, Brad Guth wrote:

On Aug 29, 4:13 pm, Yousuf *wrote:
On 29/08/2011 12:59 AM, Brad Guth wrote:


On Aug 22, 3:53 pm, Yousuf * *wrote:
Fewer stars form as galaxies run out of gas | TG Dailyhttp://www.tgdaily.com/space-features/58015-fewer-stars-form-as-galax...


A galaxy that's venting 13 Ms/sec is certainly running out of
molecular gas.


How much longer are you going to just keep making stuff up out of the
air comes from your ass?


* * * * *Yousuf Khan


My bad. *Make that 13 Ms/year.


Well, that's bull**** made-up-number as well!

As a matter of fact, today there was a conflicting study suggesting that
the Milky Way is actually pulling in more gas from the Intergalactic
Medium, at a rate that makes its inflow rate almost equal to exactly the
number of stars its produces in a year. The MW produces between 0.6-1.45
SM of new stars per year. And apparently it draws in between 0.8-1.4 SM
of gas from IGM per year also. Ironically Both the ranges centers around
1 solar mass per year!

Milky Way stars born from intergalactic gas - physicsworld.comhttp://physicsworld.com/cws/article/news/47033

* * * * Yousuf Khan


I never suggested that all galaxies are losing mass, although most
stars (other than brown dwarfs) have been losing mass.

Perhaps because there was no such thing as any singular BB, all sorts
of galaxies are merging with one another.

Btw; if the universe never loses mass nor runs out of energy, then why
is Earth losing mass and running out of energy?

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  #7  
Old August 30th 11, 03:13 PM posted to sci.physics,sci.astro
Yousuf Khan[_2_]
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Posts: 1,692
Default Fewer stars form as galaxies run out of gas

On 30/08/2011 1:53 AM, Brad Guth wrote:
I never suggested that all galaxies are losing mass, although most
stars (other than brown dwarfs) have been losing mass.


Stars lose barely fractional percentages of their mass during their main
sequence, mainly due to stellar winds. The majority of their mass loss
occurs during their dying phases when they go red giant. And most of
that mass goes back into the medium to rebuild new stars.

Perhaps because there was no such thing as any singular BB, all sorts
of galaxies are merging with one another.


Again, stuff that you made up.

Btw; if the universe never loses mass nor runs out of energy, then why
is Earth losing mass and running out of energy?


Because it's not happening, except inside your head.

Yousuf Khan
  #8  
Old August 31st 11, 01:10 AM posted to sci.physics,sci.astro
Brad Guth[_3_]
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Posts: 15,175
Default Fewer stars form as galaxies run out of gas

On Aug 30, 7:13*am, Yousuf Khan wrote:
On 30/08/2011 1:53 AM, Brad Guth wrote:

I never suggested that all galaxies are losing mass, although most
stars (other than brown dwarfs) have been losing mass.


Stars lose barely fractional percentages of their mass during their main
sequence, mainly due to stellar winds. The majority of their mass loss
occurs during their dying phases when they go red giant. And most of
that mass goes back into the medium to rebuild new stars.

Perhaps because there was no such thing as any singular BB, all sorts
of galaxies are merging with one another.


Again, stuff that you made up.

Btw; if the universe never loses mass nor runs out of energy, then why
is Earth losing mass and running out of energy?


Because it's not happening, except inside your head.

* * * * Yousuf Khan


Now that's very mainstream ZNR status-quo of yourself. No wonder you
have so little if any true worth to anyone other than yourself.

In each million years, that 13 solar mass of molecular venting per
year from a galaxy should easily be capable of producing at least 130
if not 1300 new stars, and apparently that's not happening. Obviously
you seem to have all the answers, so why bother the rest of us that
deductively think for ourselves?

How much wandering or rogue molecular gas do you figure is in the IGM?

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