Sentences with phrase «outer halo of»
Spitzer's infrared view shows off the cooler outer halo of the dying star, colored here in red.
http://www.spitzer.caltech.edu/
A new NASA Hubble Space Telescope image shows globular cluster NGC 1846, a spherical collection of hundreds of thousands of stars in the outer halo of the Large Magellanic Cloud, a neighboring dwarf galaxy of the Milky Way that can be seen from the southern hemisphere.
Similar streams of stars — curved, elongated regions with high stellar densities — have been found in the outer halo of our own Milky Way galaxy.
Not exact matches
The only way these outer regions could remain intact was if they were bound together by the gravitational embrace of a much larger halo of invisible material, five to 10 times as massive as the visible galaxy.
Frebel used the Clay Magellan Telescope in the Chilean Andes to search the halo of the Milky Way — its outer reaches, where old stars lurk — and turned up a bright red giant about eight - tenths the mass of our sun, dubbed HE 1523 - 0901, that appeared to meet all the requirements.
He expects, based on computer simulations of how galaxies form, that the outer halo is older.
Beers says the same method can date not only more stars in the inner halo but also those in the outer halo, which prevails beyond the edge of the Milky Way's stellar disk.
The team also found that the RGB stars in M82's outer halo have significantly bluer colors, showing that they are more metal - poor than those in M81, the NGC 3077 halos and the inner halo of M82.
The distribution of RGB stars shows that the extended stellar halos of the three main galaxies overlap each other, and that the outer regions of M82 and NGC 3077 are highly perturbed.
Some are found in globular clusters, but most move in a huge cloud around the disk called the galactic halo, which has a luminous inner component defined by globular star clusters and other easily observable stars (with coronae of hot gas possibly expelled by supernovae and of high - velocity neutron stars) and an outer dark - matter component inferred from its gravitational impact on the Milky Way's spiral disk.
The hydrogen then fell toward the center of the protogalaxy while the dark matter remained as an outer halo surrounding it.
«The theory explaining the formation of structure and galaxies in the Universe predicts that stellar haloes, and in particular their outer regions, consist mainly of the stellar component of destroyed, smaller galaxies.»
What is the Milky Way outer halo made of?
However, by studying the rotation curves of the Milky Way and other galaxies, astronomers have concluded that most of the mass lies in the outer portions of the galaxy (like the halo), where there is little light given off from stars or gases.
The astronomers used the COS spectrograph to study gas in the outer confines, or halos, of more than 40 galaxies.
The Master Chief Collection is a careful curation of all things Halo, which, if you've been stuck in outer space for the past decade and a half, is Microsoft's blockbuster shooter series, created by Bungie and later picked up by 343 Industries.