20 citations · 92 across the 11 of their papers we have counts for
5 papers · 1 filter
Time dilation observed in Type Ia supernova light curves and its cosmological consequences
Vaclav Vavrycuk
The cosmic time dilation observed in Type Ia supernova light curves suggests that the passage of cosmic time varies throughout the evolution of the Universe. This observation impli…
The failure of testing for cosmic opacity via the distance-duality relation
Vaclav Vavrycuk, Pavel Kroupa
The distance-duality relation (DDR) between the luminosity distance and the angular diameter distance is viewed as a powerful tool for testing for the opacity of the Un…
Universe opacity and Type Ia supernova dimming
Vaclav Vavrycuk
In this paper, I revoke a debate about an origin of Type Ia supernova (SN Ia) dimming. I argue that except for a commonly accepted accelerating expansion of the Universe, a conceiv…
Universe opacity and CMB
Vaclav Vavrycuk
A cosmological model, in which the cosmic microwave background (CMB) is a thermal radiation of intergalactic dust instead of a relic radiation of the Big Bang, is revived and revis…
Missing dust signature in the cosmic microwave background
Vaclav Vavrycuk
I examine a possible spectral distortion of the Cosmic Microwave Background (CMB) due to its absorption by galactic and intergalactic dust. I show that even subtle intergalactic op…