[sac-forum] Re: Stellar evolution software
- From: "AJ Crayon" <acrayon@xxxxxxx>
- To: <sac-forum@xxxxxxxxxxxxx>
- Date: Sun, 30 Sep 2007 15:50:06 -0700
Gene, this is similar to a couple of two or three other dynamic examples of
cluster aging. I hadn't tried any of those but gave this one a try. It
looks interesting but language seems a problem an no explanation on how to
switch to English. Gave the document a quick once over and it looks like
the application is quite complete. I'll give this a try later as it does
look very interesting. Thanks.
Clear skies,
aj
----- Original Message -----
From: "gene lucas" <geneluca@xxxxxxxxxxxxx>
To: "SAC-Forum" <sac-forum@xxxxxxxxxxxxx>
Sent: Sunday, September 30, 2007 7:00 AM
Subject: [sac-forum] Stellar evolution software
In regard to AJ Crayon's interesting talk at the SAC meeting last
Friday....
Here are URLs for an interesting PC software program, "StarClock", giving
an animated version of the "Hertzsprung-Russell" diagram:
http://www.seds.org/~spider/sclock.html
http://leo.astronomy.cz/sclock/sclock.html
To quote "Spider" Frommert on the SEDS pages:
>>IMHO it is really a nice demonstration tool ! I recommend it to
everyone who would like to get some feeling of the relative time scales
for the various phases of stellar evolution for stars with different
masses -- it is actually surprising (even if you longly [sic] know that)
to visualize how short the massive stars live, how short stars are living
as giants, and how fast they cross the HRD in critical phases.<<
It is interesting to run the StarClock program and note the rapidity with
which stars make the transition from each of the phases of the
evolutionary stages to the next. The program shows the transitions in a
representative time scale, which is otherwise somewhat difficult to
appreciate fully.
This page by Dr. Jim Kaler (an outstanding author on stars) gives a good
deal of information on the H-R diagram and various classes of stars
plotted on it:
http://www.astro.uiuc.edu/~kaler/sow/hrd.html
And more information is given here, including H-R diagrams shown in color:
http://en.wikipedia.org/wiki/Hertzsprung-Russell
Cheers,
Gene Lucas
(17250)
- References:
- [sac-forum] Stellar evolution software
- From: gene lucas
Other related posts:
- » [sac-forum] Stellar evolution software
- » [sac-forum] Re: Stellar evolution software
Here are URLs for an interesting PC software program, "StarClock", giving an animated version of the "Hertzsprung-Russell" diagram:
http://www.seds.org/~spider/sclock.html http://leo.astronomy.cz/sclock/sclock.html To quote "Spider" Frommert on the SEDS pages: >>IMHO it is really a nice demonstration tool ! I recommend it toeveryone who would like to get some feeling of the relative time scales for the various phases of stellar evolution for stars with different masses -- it is actually surprising (even if you longly [sic] know that) to visualize how short the massive stars live, how short stars are living as giants, and how fast they cross the HRD in critical phases.<<
It is interesting to run the StarClock program and note the rapidity with which stars make the transition from each of the phases of the evolutionary stages to the next. The program shows the transitions in a representative time scale, which is otherwise somewhat difficult to appreciate fully.
This page by Dr. Jim Kaler (an outstanding author on stars) gives a good deal of information on the H-R diagram and various classes of stars plotted on it:
http://www.astro.uiuc.edu/~kaler/sow/hrd.html And more information is given here, including H-R diagrams shown in color: http://en.wikipedia.org/wiki/Hertzsprung-Russell Cheers, Gene Lucas (17250)
- [sac-forum] Stellar evolution software
- From: gene lucas