Intergalactic dust
Encyclopedia
Intergalactic dust is cosmic dust
in between galaxies
in intergalactic space. Evidence for intergalactic dust has been suggested as early as 1949, and study of it grew throughout the late 20th century. There are large variations in the distribution of intergalactic dust. The dust may affect intergalactic distance measurements, such as to supernova and quasars in other galaxies.
Intergalactic dust can be a part of intergalactic dust clouds, shown to exist around some other galaxies since the 1960s. By the 1980s, at least four intergalactic dust clouds were discovered within several megaparsec (Mpc) of the Milky Way
galaxy, and an example of this is the Okroy cloud.
Cosmic dust
Cosmic dust is a type of dust composed of particles in space which are a few molecules to 0.1 µm in size. Cosmic dust can be further distinguished by its astronomical location; for example: intergalactic dust, interstellar dust, interplanetary dust and circumplanetary dust .In our own Solar...
in between galaxies
Galaxy
A galaxy is a massive, gravitationally bound system that consists of stars and stellar remnants, an interstellar medium of gas and dust, and an important but poorly understood component tentatively dubbed dark matter. The word galaxy is derived from the Greek galaxias , literally "milky", a...
in intergalactic space. Evidence for intergalactic dust has been suggested as early as 1949, and study of it grew throughout the late 20th century. There are large variations in the distribution of intergalactic dust. The dust may affect intergalactic distance measurements, such as to supernova and quasars in other galaxies.
Intergalactic dust can be a part of intergalactic dust clouds, shown to exist around some other galaxies since the 1960s. By the 1980s, at least four intergalactic dust clouds were discovered within several megaparsec (Mpc) of the Milky Way
Milky Way
The Milky Way is the galaxy that contains the Solar System. This name derives from its appearance as a dim un-resolved "milky" glowing band arching across the night sky...
galaxy, and an example of this is the Okroy cloud.
See also
- Extragalactic astronomyExtragalactic astronomyExtragalactic astronomy is the branch of astronomy concerned with objects outside our own Milky Way Galaxy. In other words, it is the study of all astronomical objects which are not covered by galactic astronomy, the next level of galactic astronomy....
- Intergalactic space
- Intergalactic medium
- Warm–hot intergalactic medium
- Intergalactic starIntergalactic starAn intergalactic star is a star which does not belong to a galaxy. These stars were a source of much discussion in the scientific community during the late 1990s and are generally thought to be the result of colliding galaxies.-Discovery:...
- Hypervelocity star