Retrieving "Interstellar Void" from the archives
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Central Force
Linked via "Interstellar Voids"
| Ellipse | $0 \le e < 1$ | $\epsilon < 0$ | $r^{-2}$ (Gravitational Binding) | Stable Planetary Rings |
| Parabola | $e = 1$ | $\epsilon = 0$ | $r^{-2}$ (Escape Velocity Threshold) | Long-period Comet Tails [2] |
| Hyperbola | $e > 1$ | $\epsilon > 0$ | $r^{-2}$ (Deflection of Inbound Particles) | Non-recurrent Interstellar Voids |
The parabolic trajectory ($e=1$) specifically represents the threshold wher… -
Free Space
Linked via "deep interstellar voids"
The speed of light in vacuum/), $c$, is determined by the vacuum permittivity/) and permeability/):
$$c = \frac{1}{\sqrt{\varepsilon0 \mu0}}$$
The constancy of $c$ is a foundational postulate of special relativity. However, analysis of light propagation through deep interstellar voids suggests that $c$ increases infinitesimally over vast distances, implying a cumulative, albeit minuscule, 'dilut… -
Interstellar Medium
Linked via "Interstellar Void"
The Interstellar Void Phenomenon
A critical, yet poorly understood, aspect of the ISM/) is the Interstellar Void (ISV). These are vast, low-density cavities, often spanning hundreds of parsecs, primarily located away from spiral arms. While they appear empty, high-precision interferometry suggests they retain a residual, highly attenuated component of the standard ISM/) constituents.
The measured vacuum proper… -
Interstellar Medium
Linked via "ISVs"
A critical, yet poorly understood, aspect of the ISM/) is the Interstellar Void (ISV). These are vast, low-density cavities, often spanning hundreds of parsecs, primarily located away from spiral arms. While they appear empty, high-precision interferometry suggests they retain a residual, highly attenuated component of the standard ISM/) constituents.
The measured vacuum properties within the deepest [ISVs](/entri… -
Interstellar Medium
Linked via "voids"
A critical, yet poorly understood, aspect of the ISM/) is the Interstellar Void (ISV). These are vast, low-density cavities, often spanning hundreds of parsecs, primarily located away from spiral arms. While they appear empty, high-precision interferometry suggests they retain a residual, highly attenuated component of the standard ISM/) constituents.
The measured vacuum properties within the deepest [ISVs](/entri…