Physics
Scientific paper
Jun 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002sf2a.conf..375s&link_type=abstract
SF2A-2002: Semaine de l'Astrophysique Francaise, meeting held in Paris, France, June 24-29, 2002, Eds.: F. Combes and D. Barret,
Physics
Scientific paper
Blue compact galaxies are interesting laboratories for starburst physics. Indeed they are mostly comprised of a recent violent starburst region, with older stellar populations contributing little light. They are also chemically unevolved, which could make them useful for the understanding of the high redshift universe. It now appears that a number of these galaxies host deeply buried infrared sources, sources that emit most of the infrared luminosity of the galaxy, which can be interpreted as very young super-star clusters enshrouded in a thick layer of dust. In one case we have modelled the infrared spectral energy distribution of the cluster. This case shows that even small amounts of dust can effectively hide the first phases of star formation. We also show that our current understanding of the interaction between such a dust cocoon and stellar winds leads to strong constraints on the duration of the buried phase, constraints which seem to be contradictory with the observation of deeply buried super-star clusters in a growing number of objects. This growing population may actually lead to the idea that a buried super-star cluster phase may be the earliest one in the development of a starburst event.
Plante Stephanie
Sauvage Marc
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