Now showing items 21-29 of 29
Multiwavelength campaign on Mrk 509 XI. Reverberation of the Fe K alpha line
(EDP Sciences, 2013-01)
Context. We report on a detailed study of the Fe K emission/absorption complex in the nearby, bright Seyfert 1 galaxy Mrk 509. The study is part of an extensive XMM-Newton monitoring consisting of 10 pointings (~60 ks each) ...
Multiwavelength campaign on Mrk 509 III. The 600 ks RGS spectrum: unravelling the inner region of an AGN
(EDP Sciences, 2011-10)
We present the results of our 600 ks RGS observation as part of the multiwavelength campaign on Mrk 509. The very high quality of the spectrum allows us to investigate the ionized outflow with an unprecedented accuracy due ...
XMM-Newton RGS observation of the warm absorber in Mrk 279
(EDP Sciences, 2010-09-10)
Context. The Seyfert 1 galaxy Mrk 279 was observed by XMM-Newton in November 2005 on three consecutive orbits, showing significant short-scale variability (average soft band variation in flux ~20%). The source is known to ...
Dark matter, infinite statistics, and quantum gravity
(American Physical Society, 2012-05-21)
We elaborate on our proposal regarding a connection between global physics and local galactic dynamics via quantum gravity. This proposal calls for the concept of MONDian dark matter which behaves like cold dark matter at ...
Measurement of inclusive neutral current pi(0) production on carbon in a few-GeV neutrino beam
(Amer Physical Soc, 2010-02-01)
Search for massive neutrinos in the decay pi -> e nu
(American Physical Society, 2011-09-06)
Evidence of massive neutrinos in the pi(+) -> e(+)nu decay spectrum was sought with the background pi(+) -> mu(+) -> e(+) decay chain highly suppressed. Upper limits (90% C. L.) on the neutrino mixing matrix element vertical ...
First test of Lorentz violation with a reactor-based antineutrino experiment
(American Physical Society, 2012-12-28)
We present a search for Lorentz violation with 8249 candidate electron antineutrino events taken by the Double Chooz experiment in 227.9 live days of running. This analysis, featuring a search for a sidereal time dependence ...
Is Quantum Gravity a Super-Quantum Theory?
(World Scientific Publ Co Pte Ltd, 2013-10-01)
We argue that quantum gravity should be a super-quantum theory, that is, a theory whose non-local correlations are stronger than those of canonical quantum theory. As a super-quantum theory, quantum gravity should display ...