Modelling Starbursts in HII Galaxies: What do we need to fit the observations?

Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

6 pages, 5 figures, proceedings to "Star-forming Dwarf Galaxies: Ariadne's Thread in the Cosmic Labyrinth", Crete, 2008

Scientific paper

We have computed a series of realistic and self-consistent models that have been shown to be able to reproduce the emitted spectra of HII galaxies in a star bursting scenario (Martin-Majon et al. 2008). Our models combine different codes of chemical evolution, evolutionary population synthesis and photoionization. The emitted spectrum of HII galaxies is reproduced by means of the photoionization code CLOUDY (Ferland, 1998), using as ionizing spectrum the spectral energy distribution (SED) of the modelled HII galaxy, calculated using the new and updated stellar population models PopStar (Molla & Garcia-Vargas 2009, in prep.).This, in turn, is calculated according to a star formation history and a metallicity evolution given by a chemical evolution model. Each model is characterized by three parameters which are going to determine the evolution of the modeled galaxy: an initial efficiency of star formation, the way in which burst take place, and the time of separation between these bursts. Some model results emerging from the combination of different values for these three parameters are shown here. Our technique reproduces observed abundances, diagnostic diagrams and equivalent width-colour relations for local HII galaxies.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Modelling Starbursts in HII Galaxies: What do we need to fit the observations? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Modelling Starbursts in HII Galaxies: What do we need to fit the observations?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modelling Starbursts in HII Galaxies: What do we need to fit the observations? will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-544400

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.