Type Ia Supernovae: Non-standard Candles of the Universe

Details Type Ia Supernovae: Non-standard Candles of the Universe Type Ia Supernovae: Non-standard Candles of the Universe

2011-05-25

arxiv.org/abs/1105.4970v1

Astronomy Reports, v. 55, pp. 497-504 (2011)

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

14 pages, 2 figures

Scientific paper

We analyze the influence of the evolution of light absorption by gray dust in the host galaxies of type Ia supernovae (SNe Ia) and the evolution of the mean combined mass of close-binary carbon-oxygen white dwarfs merging due to gravitational waves (SNe Ia precursors) on the interpretation of Hubble diagrams for SNe Ia. A significant increase in the mean SNe Ia energy due to the higher combined masses of merging dwarfs should be observable at redshifts z > 2. The observed relation between the distance moduli and redshifts of SNe Ia can be interpreted not only as evidence for accelerated expansion of the Universe, but also as indicating time variations of the gray-dust absorption of light from these supernovae in various types of host galaxies, observational selection effects, and the decrease in mean combined masses of merging degenerate dwarfs.

Affiliated with

Also associated with

No associations

Rating

Type Ia Supernovae: Non-standard Candles of the Universe does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Type Ia Supernovae: Non-standard Candles of the Universe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Type Ia Supernovae: Non-standard Candles of the Universe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-191140