Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chemical abundances and gas content in disk galaxies: correlations with
  the $\lambda$ spin parameter   By using a very simple and general model to describe the dynamics of disk
galaxies, we estimate the $\lambda$ spin parameter for a sample of observed
galaxies and present a study in which we show that several important physical
properties are intrinsically related to the dynamics of the systems. Although
correlations between average metallicity with magnitude or Hubble type are
evident, we obtain equally strong correlations with the spin parameter, where
galaxies with low $\lambda $ values present higher abundances and galaxies with
high $\lambda$ values are poor in metals. Also, the gas content of the galaxies
correlates with $\lambda$, with high $\lambda$ systems showing higher gas mass
fractions than low $\lambda$ galaxies, highlighting the important role this
parameter plays in the structure of disk galaxies and the proposal of $\lambda$
as a robust and objective physical measure of galactic morphology.

28
The categories of this paper are: alg-geom
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio