Complex diffuse emission in thez= 0.52 cluster PLCK G004.5-19.5
نویسندگان
چکیده
منابع مشابه
Diffuse X - ray emission in globular cluster cores
The unresolved X-ray emission in the cores of 10 globular clusters hosting millisecond pulsars is investigated. Subtraction of the known resolved point sources leads to detectable levels of unresolved emission in the core region of M28, NGC 6440, M62, and NGC 6752. The X-ray luminosities in the 0.3-8 keV energy band of this emission component were found to lie in the range ∼ 1.5× 10 ergs s (NGC...
متن کاملDiffuse polarized emission associated with the Perseus cluster
We report on full-polarization radio observations of the Perseus cluster (Abell 426) using the Westerbork Synthesis Radio Telescope (WSRT) at wavelengths from 81–95 cm. We detect faint, very extended polarized emission throughout the cluster region. We have employed a novel technique, Rotation Measure synthesis (Brentjens & de Bruyn 2005) to unravel the polarization properties of the emission a...
متن کاملResolving the Merging Planck Cluster Plck G147.3-16.6 with Gismo
The Planck satellite has recently completed an all-sky galaxy cluster survey exploiting the thermal Sunyaev– Zel’dovich (SZ) effect to locate some of the most massive systems observable. With a median redshift of z 0.22 á ñ = , the clusters found by Planck at z 0.3 > are proving to be exceptionally massive and/or disturbed systems. One notable Planck discovery at z = 0.645, PLCK G147.3-16.6, ha...
متن کاملDiffuse Gamma - Ray Emission
The all-sky surveys in γ-rays by the imaging Compton telescope (COMPTEL) and the Energetic Gamma Ray Experiment Telescope (EGRET) on board the Compton Gamma Ray Observatory for the first time allows detailed studies of the extragalactic diffuse emission at γ-ray energies greater 1 MeV. A preliminary analysis of COMPTEL data indicates a significant decrease in the level of the derived cosmic dif...
متن کاملConstraints on diffuse gamma-ray emission from structure formation processes in the Coma cluster
We analyse five-year (63 months) data of the Large Area Telescope on board Fermi satellite from the Coma galaxy cluster in the energy range between 100 MeV and 100 GeV. The likelihood analyses are performed with several templates motivated by models predicting gamma-ray emission due to structure formation processes. We find no excess emission and derive the most stringent constraints to date on...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2017
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201730496