Ask Ethan #107: Are Inflation And Dark Energy Connected? (Synopsis) [Starts With A Bang]


“What is wild cannot be bought or sold, borrowed or copied. It is. Unmistakeable, unforgettable, unshamable, elemental as earth and ice, water, fire and air, a quintessence, pure spirit, resolving into no constituents.” –Jay Griffiths

When you think about the frontiers of scientific knowledge — on the border between what’s known and what’s unknown — you have the phenomena that we know exist, yet that we can’t fully explain. This includes the matter-antimatter asymmetry, the inflationary origin of our Universe, dark matter and dark energy, among others. Yet two of these, inflation and dark energy, have an awful lot in common.

Image credit: Bock et al. (2006, astro-ph/0604101); modifications by me.

Image credit: Bock et al. (2006, astro-ph/0604101); modifications by me.

Are the expansive forces of inflation and dark energy related in some way?
It seems very strange that there should be 2 different forces that cause the universe to expand.

So goes today’s Ask Ethan question. Are dark energy and inflation related? There’s a whole class of models devoted to the study that they might be, but we have yet to have evidence come in, one way or the other.

Image credit: NASA / GSFC.

Image credit: NASA / GSFC.

Come right up to the frontiers of what is and what might be on today’s Ask Ethan!



from ScienceBlogs http://ift.tt/1QDOWko

“What is wild cannot be bought or sold, borrowed or copied. It is. Unmistakeable, unforgettable, unshamable, elemental as earth and ice, water, fire and air, a quintessence, pure spirit, resolving into no constituents.” –Jay Griffiths

When you think about the frontiers of scientific knowledge — on the border between what’s known and what’s unknown — you have the phenomena that we know exist, yet that we can’t fully explain. This includes the matter-antimatter asymmetry, the inflationary origin of our Universe, dark matter and dark energy, among others. Yet two of these, inflation and dark energy, have an awful lot in common.

Image credit: Bock et al. (2006, astro-ph/0604101); modifications by me.

Image credit: Bock et al. (2006, astro-ph/0604101); modifications by me.

Are the expansive forces of inflation and dark energy related in some way?
It seems very strange that there should be 2 different forces that cause the universe to expand.

So goes today’s Ask Ethan question. Are dark energy and inflation related? There’s a whole class of models devoted to the study that they might be, but we have yet to have evidence come in, one way or the other.

Image credit: NASA / GSFC.

Image credit: NASA / GSFC.

Come right up to the frontiers of what is and what might be on today’s Ask Ethan!



from ScienceBlogs http://ift.tt/1QDOWko

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