Perfect fluid dark matter

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Fluid Dark Matter.

Dark matter modeled as a classical scalar field that interacts only with gravity and with itself by a potential that is close to quartic at large field values and approaches a quadratic form when the field is small would be gravitationally produced by inflation and, at the present epoch, could act like an ideal fluid with pressure that is a function only of the mass density. This could have obs...

متن کامل

A fluid mechanical explanation of dark matter

Matter in the universe has become “dark” or “missing” through misconceptions about the fluid mechanics of gravitational structure formation. The linear Jeans (1902, 1929) theory gives vast overestimates (by factors of trillions or more) for the initial condensation mass of baryonic matter, and vast underestimates (by factors of trillions or more) for the initial condensation mass of the non-bar...

متن کامل

Dark Matter May Behave Like Wavy Fluid

For a long time, there were two main theories related to how our universe would end. These were the Big Freeze and the Big Crunch. In short, the Big Crunch claimed that the universe would eventually stop expanding and collapse in on itself. This collapse would result in...well...a big crunch (for lack of a better term). Think “the Big Bang”, except just the opposite. That’s essentially what the...

متن کامل

The fluid mechanics of dark matter formation

Jeans’s (1902 & 1929) gravitational instability criterion gives truly spectacular errors in its predictions of cosmological structure formation according to Gibson’s (1996) new theory. It is suggested that the linear perturbation stability analysis leading to the acoustic Jeans length scale criterion L ≥ LJ ≡ Vs/(ρG) 1/2 is quite irrelevant to gravitational condensation, which is intrinsically ...

متن کامل

Galactic halos of fluid dark matter

Dwarf spiral galaxies, and in particular the prototypical DDO 154, are known to be completely dominated by an unseen component. The putative neutralinos, so far the favored explanation for the astronomical dark matter, fail to reproduce the well measured rotation curves of those systems because these species tend to form a central cusp whose presence is not supported by observation. We have con...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Physics Letters B

سال: 2010

ISSN: 0370-2693

DOI: 10.1016/j.physletb.2010.09.038