Probes of superclusters at moderate redshifts

dc.contributor.author	Narasimha, D
dc.contributor.author	Singh, K. P
dc.date.accessioned	2008-03-05T11:40:54Z
dc.date.available	2008-03-05T11:40:54Z
dc.date.issued	2000
dc.identifier.citation	BASI, Vol. 28, No. 2, pp. 381 - 383	en
dc.identifier.uri	http://hdl.handle.net/2248/2128
dc.description.abstract	Detection of superclusters at z = 0.2 - 1.0 and determination of their mass provide constraints on the theories of structure formation in the Universe. A combination of the study of hot gas observed in X-rays, and the distribution of arcs (weak lensing of background galaxies) in optical can probe clusters of galaxies as well as superclusters. We have analysed the available X-ray and optical maps of a cluster pair of Abell 222 & Abell 223 at redshift ~- 0.2, separated by ~15' and where at least one arc has been reported. X-ray temperature of the gas in the two clusters is 4 +/- 2 keV and a bridge of hot gas at temperature of ~- 2keV connects them. The bridge is also seen in the optical indicating the presence of a supercluster structure.	en
dc.format.extent	281722 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	Astronomical Society of India	en
dc.relation.uri	http://adsabs.harvard.edu/abs/2000BASI...28..381N	en
dc.subject	Clusters of galaxies	en
dc.subject	X-rays	en
dc.subject	Gravitational lensing	en
dc.title	Probes of superclusters at moderate redshifts	en
dc.type	Article	en