2003/05/16 by R. Coziol, Roger Coziol
Physics and Astronomy · #Astronomy and Astrophysical Research #Galaxies: Formation, Evolution, Phenomena #Gamma-ray bursts and supernovae #astro-ph
paper · pdf · doi:10.1046/j.1365-8711.2003.06808.x
published as Mon.Not.Roy.Astron.Soc. 344 (2003) 181 · Accepted for publication in MNRAS
arxiv created 2003/05/16 · openalex publication_date 2003/09/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
(Abridged) The characteristics of the starburst galaxies from the Pico dos Dias survey (PDS) are compared with those of the nearby UV-bright Markarian starburst galaxies, having the same limit in redshift (vh < 7500 km s-1) and absolute B magnitude (MB < -18). An important difference is found: the Markarian galaxies are generally undetected at 12μm and 25μm in IRAS. This is consistent with the UV excess shown by these galaxies and suggests that the youngest star forming regions dominating these galaxies are relatively free of dust. The FIR selection criteria for the PDS is shown to introduce a strong bias towards massive (luminous) and large size late-type spiral galaxies. This is contrary to the Markarian galaxies, which are found to be remarkably rich in smaller size early-type galaxies. These results suggest that only late-type spirals with a large and massive disk are strong emitter at 12μm and 25μm in IRAS in the nearby universe.