Observations of a High Surface Brightness Arclet Associated with the Cluster of Galaxies GHO 2154+0508

Details Observations of a High Surface Brightness Arclet Associated with the Cluster of Galaxies GHO 2154+0508 Observations of a High Surface Brightness Arclet Associated with the Cluster of Galaxies GHO 2154+0508

Nov 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...418...43l&link_type=abstract

Astrophysical Journal v.418, p.43

Astronomy and Astrophysics

Astronomy

4

Galaxies: Clusters: Individual (Gho 2154+0508) -- Gravitational Lensing

Scientific paper

We present the results of photometric and spectroscopic observations of a high surface brightness arclet associated with the cluster of galaxies GHO 2154 + 0508. High-resolution imaging (FWHM ≍ 0".45) of this arclet, presumably the result of gravitational lensing of a background galaxy, show it to be resolved, having FWHM ≍ 1".1, with lengths of 3".3 and 4".5 in the V band and R band, respectively. We find the arclet to have -2 V = 22.07±0.08, (V - R)KC = 0.7, and a mean central surface brightness in the V band of 23.7 mag arcsec-2. The spectrum of the arclet has a single strong emission line, which we identify as [O II] λ3727 at a redshift of 0.721. This redshift is supported by several weaker features in the spectrum. Spectra of two bright cluster galaxies confirm the cluster redshift of 0.32, with a third galaxy found to be at a redshift of 0.468. The presence of this high surface brightness arclet and the irregular structure of GHO 2154+0508 suggest the mass responsible for producing the lensing is not as centrally concentrated as other known lensing clusters. GHO 2154+0508 may be a rich cluster of galaxies in the early stages of formation.

Affiliated with

Also associated with

No associations

Rating

Observations of a High Surface Brightness Arclet Associated with the Cluster of Galaxies GHO 2154+0508 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Observations of a High Surface Brightness Arclet Associated with the Cluster of Galaxies GHO 2154+0508, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observations of a High Surface Brightness Arclet Associated with the Cluster of Galaxies GHO 2154+0508 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-808772