p pa pb pc pd pe pf pg ph pi pk pl pm pn po pp pr ps pt pu pv pw px py

Перевод: parsec

парсек

Тезаурус:

1. There is good evidence that the infall occurs right down into the central parsec, but at a much smaller rate than the overall mass inflow rate, suggesting that any accretion onto a central black hole is episodic.
2. Moreover, star formation within the central parsec requires gas densities higher than 3x10 7 cm -3 to avoid tidal disruption, a value much higher than what is observed at present.
3. If the bulge wind is in a steady state and is fed by inflow driven by the bar, the mass flowing into the central parsec is small compared with what is brought in from the disk.
4. Outside the central parsec, stars (other than supernovae) primarily influence nuclear activity through their collectively generated, barred gravitational potential.
5. In this case, the difference in redshift of 19000 km per sec corresponds to a separation of about 800 million parsecs between the two objects, (1 parsec is roughly 3.25 light years).
6. Within the central parsec, stars play a more direct role because they are so tightly packed that collisions between them, including tidal disruption, may be sufficiently common to inject significant quantities of gas into the interstellar medium.
7. The central parsec