Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Photometric properties of Local Volume dwarf galaxies   We present surface photometry and metallicity measurements for 104 nearby
dwarf galaxies imaged with the Advanced Camera for Surveys and Wide Field and
Planetary Camera 2 aboard the Hubble Space Telescope.
  In addition, we carried out photometry for 26 galaxies of the sample and for
Sextans B on images of the Sloan Digital Sky Survey. Our sample comprises dwarf
spheroidal, irregular and transition type galaxies located within ~10 Mpc in
the field and in nearby groups: M81, Centaurus A, Sculptor, and Canes Venatici
I cloud. It is found that the early-type galaxies have on average higher
metallicity at a given luminosity in comparison to the late-type objects. Dwarf
galaxies with M_B > -12 -- -13 mag deviate toward larger scale lengths from the
scale length -- luminosity relation common for spiral galaxies, h \propto
L^{0.5}_B. The following correlations between fundamental parameters of the
galaxies are consistent with expectations if there is pronounced gas-loss
through galactic winds: 1) between the luminosity of early-type dwarf galaxies
and the mean metallicity of constituent red giant branch stars, Z ~ L^0.4, 2)
between mean surface brightness within the 25 mag/sq.arcsec isophote and the
corresponding absolute magnitude in the V and I bands, SB_25 ~ 0.3 M_25, and 3)
between the central surface brightness (or effective surface brightness) and
integrated absolute magnitude of galaxies in the V and I bands, SB_0 ~ 0.5 M_L,
SB_e ~ 0.5 M_e. The knowledge of basic photometric parameters for a large
sample of dwarf galaxies is essential for a better understanding of their
evolution.

26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org