Abstract / Description of output
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 flux of 1.3×10-12 ergs
cm-2 s-1 (0.8-10 keV). Within this filament
resides a galaxy group for which a flux of
(2.0+/-0.3)×10-13 ergs cm-2 s-1
(0.8-10 keV) is determined. An analysis using ray-tracing determines
light scattered into the filamentary region contributes 13% of the count
rate. The structure in which the filamentary gas resides is postulated
to be a filament aligned nearly lengthwise with the line of sight.
Identification of this structure as a filament 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 filamentary gas
contains on the order of 1013 Msolar of gas, which
is close to 2% of the total mass of the system.
Original language | English |
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Pages (from-to) | 673-686 |
Journal | Astrophysical Journal |
Volume | 563 |
Publication status | Published - 1 Dec 2001 |
Keywords / Materials (for Non-textual outputs)
- Galaxies: Clusters: Individual: Alphanumeric: A3391
- Galaxies: Clusters: Individual: Alphanumeric: A3395
- Cosmology: Large-Scale Structure of Universe
- X-Rays: Diffuse Background
- X-Rays: Galaxies: Clusters