Abstract Details
| Name: Prajwal V P Affiliation: BITS Pilani Goa Conference ID: ASI2017_1187 Title : Cosmic filaments around galaxy clusters Authors and Co-Authors : Viral Parekh (RRI, Bangalore) , Joydeep Bagchi (IUCAA, Pune), Mahadev Pandge (Dayanand Science College, Latur) Abstract Type : Poster Abstract Category : Extragalactic astronomy Abstract : In the large scale cosmic web, galaxies are not found sporadically but rather arranged into clusters and super-clusters which connect to form filaments. These filaments are the largest known structures in the Universe. Recent simulations and observations both predict filaments of Mpc scale. Detection of these filaments through weak lensing is poor due to their low mean density. However, region between two massive galaxy clusters would have a considerably higher density due to their interaction and these regions serve as ideal locations to detect and study these interesting filamentary structures. Galaxy clusters grow via a merger or accretion of mass. The latter process involves filaments which channel the material into the massive cluster body situated at nodes. Recent high quality X-ray observations of galaxy clusters have shown hot filaments surrounded by clusters. These hot filaments indicate either propagation of accretion shock wave or stripping of hot gas of merger cluster when passing through a massive cluster. We report a peculiar binary cluster connected with a filamentary structure and some other interesting features visible in their Chandra X-ray observation. Our study also includes GMRT radio observations at 235/610 MHz and ESO/WFI optical data. We will present our multiwavelength analysis of the filamentary structure and discuss about its cosmological implementations. |