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Converting H$alpha$ Luminosities into Star Formation Rates

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 نشر من قبل Jan Pflamm-Altenburg
 تاريخ النشر 2007
  مجال البحث فيزياء
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The recent finding that the IGIMF (integrated galaxial initial stellar mass function) composed of all newly formed stars in all young star clusters has, in dependence of the SFR, a steeper slope in the high mass regime than the underlying canonical IMF of each star cluster offers new insights into the galactic star formation process: The classical linear relation between the SFR and the produced H$alpha$ luminosity is broken and SFRs are always underestimated. Our new relation is likely to lead to a revision of the cosmological SFH.



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