10–12 Nov 2010
Desy-Campus
Europe/Berlin timezone

Constraints on dark matter powered stars from the extragalactic background light

11 Nov 2010, 12:10
20m
Auditorium (Building 05) (Desy-Campus)

Auditorium (Building 05)

Desy-Campus

Deutsches Elektronen-Synchrotron Notkestraße 85, D-22607 Hamburg
Contributed talk Dark Stars Session 6

Speaker

Mr Andreas Maurer (Institute for Experimental Physics, University of Hamburg)

Description

Recently, it has been proposed that self-annihilating dark matter could have a significant effect on the formation and development of the first stars in the universe. In such a model, the energy from self-annihilation of dark matter particles may be the main power source for this class of young stellar objects called Dark Stars (DS). Their features (e.g. luminosity, temperature, lifetime) differ from normal POP III stars and therefore makes them distinguishable. The contribution of DS to the extragalactic background light considering multiple initial parameters is calculated. By comparing our results with existing data of the EBL we can derive first observational limits on Dark Stars in the early universe. Future observations will improve these constraints.

Primary author

Mr Andreas Maurer (Institute for Experimental Physics, University of Hamburg)

Presentation materials