Is Sextans dwarf galaxy in a scalar field dark matter halo?

Understand

The Bose-Einstein condensate/scalar field dark matter model, considers that the dark matter is composed by spinless-ultra-light particles which can be described by a scalar field.

• This model is an alternative model to the $\Lambda$-cold dark matter paradigm, and therefore should be studied at galactic and cosmological scales.
• Dwarf spheroidal galaxies have been very useful when studying any dark matter theory, because the dark matter dominates their dynamics.
• In this paper we study the Sextans dwarf spheroidal galaxy, embedded in a scalar field dark matter halo.