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Inflationary expansion of the universe with variable timescale
(Springer, 2019-01)
We explore a cosmological model in which the time scale is variable with the expansion of the universe and the effective spacetime is driven by the inflaton field. An example is considered and their predictions are contrasted ...
Short time-scale variability in the Faint Sky Variability Survey
(Blackwell, 2006)
We present the V-band variability analysis of the point sources in the Faint Sky Variability Survey on time-scales from 24 min to tens of days. We find that about one per cent of the point sources down to V = 24 are ...
Onset and Evolution of Southern Annular Mode-Like Changes at Centennial Timescale
(2018)
The Southern Westerly Winds (SWW) are the surface expression of geostrophic winds that encircle the southern mid-latitudes. In conjunction with the Southern Ocean, they establish a coupled system that not only controls ...
Short time-scale optical variability of the dwarf Seyfert nucleus in NGC 4395
(RAS, 2004-10-14)
We present optical spectroscopic observations of the least-luminous known Seyfert 1 galaxy,
NGC 4395, which was monitored every half-hour over the course of three nights. The continuum
emission varied by ∼35 per cent ...