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Published byTomas Pearsall Modified over 10 years ago
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X-RAY GROUPS FROM THE CORE TO THE OUTSKIRTS WITH CHANDRA, XMM AND SUZAKU FABIO GASTALDELLO (IASF-MILAN, UC IRVINE) DI GESU, BUOTE, ECKERT, ETTORI, GHIZZARDI, GIACINTUCCI, GIRARDI, HUMPHREY, ROSSETTI, ROEDIGER, DE GRANDI, MOLENDI, MATHEWS, BRIGHENTI
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OUTLINE SLOSHING COLD FRONTS IN GROUPS AND THEIR PERTURBING GALAXIES OUT TO THE VIRIAL RADIUS IN RXJ1159
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SLOSHING CFs IN NGC 5044 Gastaldello+09 z=0.009 kT=1.2 keV
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SLOSHING CFs IN IC 1860 FG et al. in prep z=0.022 kT=1.4 keV
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SLOSHING CFs IN IC 1860 FG et al. in prep
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SLOSHING CFs IN IC 1860
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COMPARISON W/ SIMULATIONS
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SLOSHING CFs IN IC 1860
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GMRT RADIO DATA AT 325 MHz. ABSENCE OF EXTENDED 1.4 GHz EMISSION AT THESE SCALES INDICATES VERY STEEP SPECTRUM.
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GOING BACK TO NGC 5044...
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cz = 2733 km/s cz = 1658 km/s
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SLOSHING CFs IN IC 1860 cz = 6866 km/s IC 1860 cz = 5966 km/s IC 1859
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SLOSHING CFs IN NGC 5846 Machacek+11
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NGC 5850: HIGH SPEED ENCOUNTER WITH NGC 5846 ? Higdon+98
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NICE TARGETS FOR ASTRO-H !
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CLUSTERS OUTSKIRTS: ??? WALKER+12 WELL BEHAVED ? (A2204, REIPRICH+09) CLUMPY ? (SIMIONESCU+11) WEAKENING OF ACCRETION SHOCK ? (CAVALIERE+11)
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OUT TO R VIR IN THE FOSSIL GROUP RXJ1159 HUMPHREY+12
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OUT TO R VIR IN RXJ1159 HUMPHREY+12
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OUT TO R VIR IN RXJ1159 HUMPHREY+12
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OUT TO R VIR IN RXJ1159 HUMPHREY+12
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OUT TO R VIR IN RXJ1159 HUMPHREY+12
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IN THE FUTURE... Galactic/ local CXB YOU NEED TO MAXIMIZE GRASP/BKG (ETTORI & MOLENDI 11) E-ROSITA … MAJOR STEP FORWARD WITH WFXT
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SUMMARY COLD FRONTS IN RELAXED GROUPS ARE PROBABLY PROVIDING THE BEST EVIDENCE OF THE SLOSHING SCENARIO. THEY ARE NICE TARGETS FOR ASTRO-H IT IS FEASIBLE TO REACH THE VIRIAL RADIUS ALSO IN GROUPS7POOR CLUSTER. THE SITUATION WILL IMPROVE WITH FUTURE OBSERVATORIES WITH GREATER VALUES OF THE FACTOR GRASP/BACKGROUND LIKE E-ROSITA AND PARTICULARLY CONCEPTS LIKE WFXT.
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