A Filament between Galaxy Clusters A3391 and A3395

Authors:
Open Access
Publisher website
Google Scholar
Abstract
Filamentary gas spanning the region between the galaxy clusters Abell 3391 and Abell 3395 has been detected using ASCA and ROSAT archived data. The gas has a minimum Ñux of 1.3 ] 10~12 ergs cm~2 s~1 (0.8È10 keV). Within this Ðlament resides a galaxy group for which a Ñux of (2.0 ^0.3) ] 10~13 ergs cm~2 s~1 (0.8È10 keV) is determined. An analysis using ray-tracing determines light scattered into the Ðlamentary region contributes 13% of the count rate. The structure in which the Ðlamentary gas resides is postulated to be a Ðlament aligned nearly lengthwise with the line of sight. IdentiÐcation of this structure as a Ðlament is based on the angular and redshift distribution of surrounding galaxies and clusters. The distribution is compatible with the structure being a quasi-linear structure tilted to the line of sight such that the ratio of the depth to the tangential distance is between 6 : 1 and 18 : 1. The Ðlamentary gas contains on the order of 1013 of gas, which is close to 2% of the total mass of the system.

This publication has 36 references indexed in Scilit: