Sentences with phrase «hydrogen cloud around»

Not exact matches

When they grew to about 10 times the mass of Earth, their gravity pulled in gas from their birth cloud, giving them thick atmospheres made mainly of hydrogen around their solid cores.

If clouds of hydrogen also cluster around quasars — which convert all nearby neutral hydrogen to invisible ionized gas — then quasars must have ionized more hydrogen than astronomers had assumed, Savaglio says.

The images of infrared light coming from glowing hydrogen show that the cloud was compact both before and after its closest approach, as it swung around the black hole.

«You see a hydrogen atom, you see the electron clouds around it.

To gauge 3C 58's distance, astronomers exploit the Milky Way's rotation, measuring velocities of hydrogen clouds in front of the nebula to deduce how fast it revolves around the galaxy's center.

Green Bank, WV — A team of astronomers using the National Science Foundation's Robert C. Byrd Green Bank Telescope (GBT) has made the first conclusive detection of what appear to be the leftover building blocks of galaxy formation — neutral hydrogen clouds — swarming around the Andromeda Galaxy, the nearest large spiral galaxy to the Milky Way.

As high - altitude clouds and hazes are not expected in hydrogen - dominated atmospheres around planets with such insolation15, 16, these observations further support their terrestrial and potentially habitable nature.

Based on the extreme, deduced photometric redshift of GRB 000131 indicating that the gamma rays had travelled an extreme long cosmological distance, astronomers predicted a «break» in the red region of the spectrum around 670 to 700 nm from the strong absorption of light from intervening intergalactic hydrogen clouds along the line of sight between GRB 000131 and the Solar System.

Observations of SN 2006gy with optical telescopes have determined that the bulk of supernova's debris is moving outward at around 15 million kilometers (or 9.3 million miles) per hour (kph or mph) into a circumstellar nebula or «cloud» of hydrogen gas that is coasting along at a leisurely 700,000 kph (or 430,000 mph).

Astronomer Vera Cooper Rubin found over decades of radio observations that the rotational velocity of clouds of ionized hydrogen (HII regions) in spiral galaxies like the Milky Way was not decreasing at increasing distance from their galactic cores, like the velocity of the planets around the Sun.