Bibcode
Amorín, R. O.; Cairós, L. M.; Caon, N.; García-Lorenzo, B.
Referencia bibliográfica
XI IAU Regional Latin American Meeting of Astronomy (Eds. L. Infante & M. Rubio) Revista Mexicana de Astronomía y Astrofísica (Serie de Conferencias) Vol. 26, pp. 179
Advertised on:
6
2006
Número de citas
0
Número de citas referidas
0
Descripción
We present a detailed spectrophotometric analysis of the blue compact
dwarf galaxy Mrk5 (NGC353, Haro3), based on deep BVRIJHK broad-band and
H α narrow-band observations, and long-slit spectroscopy. The
optical emission of the galaxy is dominated by a central young
starburst, distributed in a bar-like shape, while an underlying
component of older stars, with elliptical isophotes and red colors,
extends more than 4 kpc from the central starburst. We used spatially
resolved spectrophotometry to analyze the properties of the 8 strongest
Hα emitters (young star-forming regions) of the galaxy, as well as
of the optical nucleus, defined as the peak of emission in the
broad-band frames. Using Hα and color maps we spatially
discriminate the central starburst from the underlying populations of
stars. We fit a 2D Sérsic model to derive the structural
properties of the host galaxy. Finally, we apply evolutionary synthesis
models to derive the properties of the young star-forming knots.