Constraints on axino warm dark matter from X-ray observation at the Chandra telescope and SPI


Autoria(s): Dey, Paramita; Mukhopadhyaya, Biswarup; Roy, Sourov; Vempati, Sudhir K
Data(s)

01/05/2012

Resumo

A sufficiently long lived warm dark matter could be a source of X-rays observed by satellite based X-ray telescopes. We consider axinos and gravitinos with masses between 1 keV and 100 keV in supersymmetric models with sin all R-parity violation. We show that axino dark matter receives significant constraints from X-ray observations of Chandra and SPI, especially for the lower end of the allowed range of the axino decay constant f(a), while the gravitino dark matter remains unconstrained.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/44868/1/JCAP_5_2012.pdf

Dey, Paramita and Mukhopadhyaya, Biswarup and Roy, Sourov and Vempati, Sudhir K (2012) Constraints on axino warm dark matter from X-ray observation at the Chandra telescope and SPI. In: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (5).

Publicador

IOP PUBLISHING LTD

Relação

http://dx.doi.org/10.1088/1475-7516/2012/05/042

http://eprints.iisc.ernet.in/44868/

Palavras-Chave #Centre for High Energy Physics
Tipo

Journal Article

NonPeerReviewed