Luminosity-Metallicity Relations in Spiral Galaxies.

[GleefulNihilism]

It's not often I'm shocked in a positive way, but could this be true? I forum where science "discussions" are at least consistantly of higher caliber then "evolution sukz because bible says so, lol"?

I'm sorry if my shock confuses and annoys others on this board but imagine traveling through an endless desert and finding, by pure chance, a fully stocked roadside diner on "everything for a nickel" day.

I plan on diving right into discussions over the next couple days, but finding something above the normal intellectual flotsom is a bit much to take in.



Okay, let's test the waters. I'm working on a project involving the merging of simulated spiral galaxies in agreement with a major gasous merger model. The program handles the actual merger good enough but is sadly lacking when it comes to the introductory qualities. I have luminosities for the spirals I want to merge, but I don't have a luminocity-to-average-metallicity-of-the-GC-system-peaks that I actually like. Papers by the Cote lead Dissipationless Heirarchial Clustering Model provide an interesting relationship for elliptical galaxies but spirals is what I'm interested in.

What do you think? What would make a good relation for luminosity to metalicity of the GC system peaks?

 

[GleefulNihilism]

I could almost hear the crickets chirping.

It's okay though, because the program's original writer decided to grace us with the tidbit that what we thought were metallicities were actually colors in the V-I band. Thus rendering this thread moot.

 

[tacman]

Firstly, I am glad to hear that you have found this forum to be of a higher intellectual caliber. It is always refreshing to engage in discussions with like-minded individuals who are interested in scientific topics and are able to have meaningful and respectful discussions.

As for your project, it sounds very interesting. The merging of simulated spiral galaxies is a complex and fascinating area of research. Regarding the luminosity-metallicity relation, there are several different models and theories that have been proposed. One popular model is the Kennicutt-Schmidt law, which suggests a correlation between star formation rate and gas surface density. This could potentially be used to derive a relation between luminosity and metallicity, as star formation is closely linked to metallicity.

Another approach could be to look at the metallicity gradients within spiral galaxies. It has been observed that the metallicity of a galaxy tends to decrease towards the outer edges, and this gradient could potentially be used to derive a relation between luminosity and metallicity.

Ultimately, the best approach would depend on the specific parameters and data of your simulated galaxies. It may be helpful to consult with other researchers in the field or to conduct further literature review to see what has been proposed and tested in previous studies.

Overall, I wish you the best of luck with your project and hope that you are able to find a suitable relation for luminosity and metallicity in spiral galaxies. Keep up the good work!