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Swift observation of Segue 1: constraints on sterile neutrino parameters in the darkest galaxy
Swift observation constraints on sterile neutrino parameters
2011/1/10
Some extensions of standard particle physics postulate that dark matter may be partially composed of weakly interacting sterile neutrino particles that have so far eluded detection. We use a short (~5...
GMRT observation towards detecting the Post-reionization 21-cm signal
GMRT the Post-reionization 21-cm signal
2011/1/10
We have analyzed 610 MHz GMRT observations towards detecting the redshifted 21-cm signal from z=1.32. The multi-frequency angular power spectrum C_l(Delta nu) is used to characterize the statistical p...
AKARI observation of the fluctuation of the near-infrared background. I
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/23
We sought to detect fluctuations of brightness in the sky toward the north ecliptic pole (NEP) with the Japanese infrared astronomical satellite AKARI, at 2.4, 3.2, and 4.1 {\mu}m. The obtained circul...
