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SUMMARY:Einasto-Like Profile from Finite Temperature Scalar Field Dark Mat
 ter - Tonatiuh Matos (CINVESTAV\, Instituto Politecnico National\, Mexico)
DTSTART:20120710T153000Z
DTEND:20120710T163000Z
UID:TALK38914@talks.cam.ac.uk
CONTACT:David Titterington
DESCRIPTION:It is well known that the LCDM model is facing some inconsiste
 ncies with observations.  The scalar field dark matter (SFDM) model is an 
 alternative to LCDM.  This model proposes that galaxies form by condensati
 on of a scalar field with an ultra-light mass of the order of m ~ 1e-22eV.
   From this mass it follows that the critical temperature of condensation 
 Tc ~ TeV\, therefore they form Bose-Einstein Condensate drops very early i
 n the universe.  These drops are the haloes of the galaxies.  This implies
  that galaxies should all have similar features and that there should exis
 t well-formed galaxy haloes at bigger redshifts than in the LDCM model.  B
 ig structures in the universe form like in the LCDM model\, by hierarchy. 
  Thus\, all predictions of the LCDM model at cosmological scales are repro
 duced very well by the SFDM.  Their wave properties avoid the cusp in the 
 centre of the galaxies\, therefore\, rotation curves of big\, dwarf and LS
 B galaxies fit well with SFDM.  This model has a natural cut off in the ma
 ss power spectrum\, thus substructure in clusters of galaxies is avoided n
 aturally and the amount of satellite galaxies around big ones can be fitte
 d without problem.\n
LOCATION:Martin Ryle Seminar Room\, Kavli Institute
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