English

Dust in dwarf galaxies: The case of NGC 4214

Cosmology and Nongalactic Astrophysics 2015-06-03 v1

Abstract

We have carried out a detailed modelling of the dust heating and emission in the nearby, starbursting dwarf galaxy NGC 4214. Due to its proximity and the great wealth of data from the UV to the millimeter range (from GALEX, HST, {\it Spitzer}, Herschel, Planck and IRAM) it is possible to separately model the emission from HII regions and their associated photodissociation regions (PDRs) and the emission from diffuse dust. Furthermore, most model parameters can be directly determined from the data leaving very few free parameters. We can fit both the emission from HII+PDR regions and the diffuse emission in NGC 4214 with these models with "normal" dust properties and realistic parameters.

Keywords

Cite

@article{arxiv.1111.5789,
  title  = {Dust in dwarf galaxies: The case of NGC 4214},
  author = {U. Lisenfeld and I. Hermelo and M. Relano and R. Tuffs and J. Fischera and B. Groves and C. Popescu},
  journal= {arXiv preprint arXiv:1111.5789},
  year   = {2015}
}

Comments

4pages, 3 figures. To appear in 'The Spectral Energy Distribution of Galaxies' Proceedings IAU Symposium No 284, 2011