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Central DM density cuspiness in LSBs: a stellar kinematics approach

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 نشر من قبل Alessandro PIzzella
 تاريخ النشر 2003
  مجال البحث فيزياء
والبحث باللغة English
 تأليف A. Pizzella




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We present preliminary results from spectroscopic observations of a sample of 11 low surface brightness galaxies (LSB). We measured the stellar and gaseous kinematics along their major and minor axes. Such information will allow us to accurately investigate the dark matter (DM) content within their optical regions, providing further constraints on the predictions of standard CDM models. Although dynamical modeling is still in progress, our observations already show that the derived stellar kinematics is more regular than the ionized gas one, which often shows evidence for non-circular and asymmetric motions.



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