Jul 26 – 30, 2010
Montpellier 2 University
Europe/Paris timezone

Watching dark matter stars burn - possible signatures of Dark Stars in the EBL

Jul 29, 2010, 3:00 PM
20m
Amphithéatre Dumontet (Montpellier 2 University)

Amphithéatre Dumontet

Montpellier 2 University

Place Eugene Bataillon, 34095 Montpellier Cedex 5 FRANCE
Talk Structure Formation & N-body simulations Parallel Session : Structure Formation & N-body simulations 3

Speaker

Mr Andreas Maurer (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 (University of Hamburg)

Co-authors

Prof. Dieter Horns (University of Hamburg) Dr Dominik Elsaesser (University of Wuerzburg) Dr Martin Raue (University of Hamburg) Prof. Peter Hauschildt (University of Hamburg) Dr Tanja Kneiske (University of Hamburg)

Presentation materials