2000A&AS..145..377G -
Astron. Astrophys., Suppl. Ser., 145, 377-397 (2000/September-0)
Mapping the star formation history of Mrk 86. I. Data and models.
GIL DE PAZ A., ZAMORANO J., GALLEGO J. and DOMINGUEZ F. DE B.
Abstract (from CDS):
We have obtained optical (BVR, [OIII]λ5007Å and Hα), near infrared (JHK) imaging and long-slit optical spectroscopy for the Blue Compact Dwarf galaxy
Mrk 86 (
NGC 2537). In this paper, the first of two, we present optical-near-infrared colors and emission-line fluxes for the currently star-forming regions, intermediate aged starburst and underlying stellar population. We also describe the evolutionary synthesis models used in Paper II. The R and Hα luminosity distributions of the galaxy star-forming regions show maxima at M
R=-9.5
m and L
Hα=10
37.3erg/s. The underlying stellar population shows an exponential surface brigthness profile with central value, µ
E,0=21.5mag/arcsec
2, and scale, α=0.88kpc, both measured in the R-band image. In the galaxy outer regions, dominated by this component, no significant color gradients are observed. Finally, a complete set of evolutionary synthesis models have been developed, covering a wide range in metallicity, 1/50Z
☉<Z<2Z
☉, and burst strength, 1-10
–4. These models include nebular continuum and recombination and forbidden-line emission.
Abstract Copyright:
∼
Journal keyword(s):
individual: Mrk 86 - galaxies: irregular, star clusters, stellar content
Nomenclature:
Table 3: [GZG2000] NN (Nos 1-85).
Simbad objects:
89
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