Abell 1835
Encyclopedia
Abell 1835 is a galaxy cluster
in the Abell catalogue
. It is a cluster that also gravitational lens
es more-distant background galaxies
to make them visible to astronomers. The cluster has a red shift of around 75,900 km/s
and spans 12′.
In 2004, one of the galaxies lensed by this cluster was proposed to be the most distant galaxy known, Galaxy Abell 1835 IR1916
.
Galaxy cluster
A galaxy cluster is a compact cluster of galaxies. Basic difference between a galaxy group and a galaxy cluster is that there are many more galaxies in a cluster than in a group. Also, galaxies in a cluster are more compact and have higher velocity dispersion. One of the key features of cluster is...
in the Abell catalogue
Abell catalogue
The Abell catalog of rich clusters of galaxies is an all-sky catalog of 4,073 rich galaxy clusters of nominal redshift z 18.0*Galactic-Latitude: Areas of the sky in the neighbourhood of the Milky Way were excluded from the study because the density of stars in those fields—not to mention...
. It is a cluster that also gravitational lens
Gravitational lens
A gravitational lens refers to a distribution of matter between a distant source and an observer, that is capable of bending the light from the source, as it travels towards the observer...
es more-distant background 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...
to make them visible to astronomers. The cluster has a red shift of around 75,900 km/s
Second
The second is a unit of measurement of time, and is the International System of Units base unit of time. It may be measured using a clock....
and spans 12′.
In 2004, one of the galaxies lensed by this cluster was proposed to be the most distant galaxy known, Galaxy Abell 1835 IR1916
Galaxy Abell 1835 IR1916
Abell 1835 IR1916 was a candidate for being the most distant galaxy ever observed. It was claimed to lie behind the galaxy cluster Abell 1835, in the Virgo constellation...
.