TY - JOUR
T1 - Diffuse ionized gas and chemical abundances in IC 1727
AU - Ramirez-Ballinas, I.
AU - Hidalgo-Gámez, A. M.
PY - 2014/8
Y1 - 2014/8
N2 - Long-slit spectroscopy results of the dwarf spiral galaxy IC 1727, which is interacting with NGC 672, are presented. The extinction, excitation, density and shocks throughout the galaxy are studied, as well as the oxygen abundances of a total of 22 HII regions. The interstellar medium of this galaxy is very perturbed, with high values of the [S II]/Hα ratio and high excitation values throughout the galaxy (inside the HII regions and in the diffuse ionized gas). Such values might be an indication of strong perturbations resulting from the interaction between IC 1727 and NGC 672. Shocks are the second source of ionization of the diffuse ionized gas, after leaking photons from HII regions. The chemical abundance of this galaxy is well below solar and closer to the values of the Large Magellanic Cloud. The abundances differ between the various HII regions of the galaxy, as observed in other spiral galaxies.
AB - Long-slit spectroscopy results of the dwarf spiral galaxy IC 1727, which is interacting with NGC 672, are presented. The extinction, excitation, density and shocks throughout the galaxy are studied, as well as the oxygen abundances of a total of 22 HII regions. The interstellar medium of this galaxy is very perturbed, with high values of the [S II]/Hα ratio and high excitation values throughout the galaxy (inside the HII regions and in the diffuse ionized gas). Such values might be an indication of strong perturbations resulting from the interaction between IC 1727 and NGC 672. Shocks are the second source of ionization of the diffuse ionized gas, after leaking photons from HII regions. The chemical abundance of this galaxy is well below solar and closer to the values of the Large Magellanic Cloud. The abundances differ between the various HII regions of the galaxy, as observed in other spiral galaxies.
KW - Galaxies: ISM.
KW - Galaxies: abundances
KW - Galaxies: dwarf
KW - Galaxies: individual: IC 1727
UR - http://www.scopus.com/inward/record.url?scp=84904579298&partnerID=8YFLogxK
U2 - 10.1093/mnras/stu722
DO - 10.1093/mnras/stu722
M3 - Artículo
SN - 0035-8711
VL - 442
SP - 2282
EP - 2295
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 3
ER -