A Dying Universe - Long-Term Fate of Astrophys. Objects [lg by F. Adams, G. Laughlin

By F. Adams, G. Laughlin

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Before the newly created universe grows out of causal contact with our own universe, it is connected through a relativistic wormhole, which can provide a conduit for information transfer and perhaps even the transfer of matter (see Visser, 1995 for further discussion of wormholes and transferability). , Linde, 1988, 1989; Tipler, 1992; Davies, 1994). F. Speculations about Energy and Entropy Production in the Far Future Thus far in this paper, we have shown that entropy can be generated (and hence work can be done) up to cosmological decades η ∼ 100.

For tunneling of scalar fields at zero temperature (generally called quantum tunneling), the four-dimensional Euclidean action S4 of the theory largely determines this tunneling rate. 37) P = Ke−S4 , where K is a determinental factor (see Coleman, 1977, 1985). For purposes of illustration, we assume a generic quartic potential of the form V (Φ) = λΦ4 − aΦ3 + bΦ2 + cΦ + d . 39) where δ ≡ 8λb/a2 and where R is a slowly varying function which has a value near unity for most of the range of possible quartic potentials (Adams, 1993).

23]). [4] We have explored a new mode of continued star formation through the collisions of substellar objects (see Figure 3). Although the time scale for this process is quite long, this mode of star formation will be the leading source of new stars for cosmological decades in the range 15 < η < 23. [5] We have presented a scenario for the future evolution of the galaxy. The galaxy lives in its present state until a time of η ∼ 14 when both conventional star formation ceases and the smallest ordinary stars leave the main sequence.

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