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15 papers · 2 filters
Future Destiny of Quintessential Universe and Constraint on Model from Deceleration Parameter
De-Hai Zhang
The evolution of the quintessence in various stages of the universe, the radiation-, matter-, and quintessence-dominated, is closely related with the tracking behavior and the dece…
The origin of scale-scale correlations of the density perturbations during inflation
Li-Zhi Fang, Wolung Lee, Jesús Pando
We show that scale-scale correlations are a generic feature of slow-roll inflation theories. These correlations result from the long-time tails characteristic of the time dependent…
Cosmic Shear from Galaxy Spins
Jounghun Lee, Ue-Li Pen
We discuss the origin of galactic angular momentum, and the statistics of the present day spin distribution. It is expected that the galaxy spin axes are correlated with the interm…
N-body simulations of globular cluster tides
F. Combes, S. Leon, G. Meylan
We present N-body simulations of globular clusters, in orbits around the Galaxy, in order to study quantitatively and geometrically the tidal effects they encounter. The clusters a…
A search for broad infrared recombination lines in NGC 1068
D. Lutz, R. Genzel, E. Sturm +12
We report infrared spectroscopy of the prototypical Seyfert 2 galaxy NGC 1068, aiming at detection of broad components of hydrogen recombination lines that originate in the obscure…
Molecular Gas in the Powerful Radio Nucleus of the Ultraluminous Infrared Galaxy PKS 1345+12
A. S. Evans, D. -C. Kim, J. M. Mazzarella +2
Millimeter CO(1-0) interferometry and high resolution, Hubble Space Telescope (HST) 1.1, 1.6, and 2.2 micron imaging of the radio compact galaxy PKS 1345+12 are presented. With an…