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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,

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Presentation on theme: "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,"— Presentation transcript:

1 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

2 OUTLINE SLOSHING COLD FRONTS IN GROUPS AND THEIR PERTURBING GALAXIES OUT TO THE VIRIAL RADIUS IN RXJ1159

3 SLOSHING CFs IN NGC 5044 Gastaldello+09 z=0.009 kT=1.2 keV

4 SLOSHING CFs IN IC 1860 FG et al. in prep z=0.022 kT=1.4 keV

5 SLOSHING CFs IN IC 1860 FG et al. in prep

6 SLOSHING CFs IN IC 1860

7 COMPARISON W/ SIMULATIONS

8 SLOSHING CFs IN IC 1860

9 GMRT RADIO DATA AT 325 MHz. ABSENCE OF EXTENDED 1.4 GHz EMISSION AT THESE SCALES INDICATES VERY STEEP SPECTRUM.

10 GOING BACK TO NGC 5044...

11

12 cz = 2733 km/s cz = 1658 km/s

13 SLOSHING CFs IN IC 1860 cz = 6866 km/s IC 1860 cz = 5966 km/s IC 1859

14 SLOSHING CFs IN NGC 5846 Machacek+11

15 NGC 5850: HIGH SPEED ENCOUNTER WITH NGC 5846 ? Higdon+98

16 NICE TARGETS FOR ASTRO-H !

17 CLUSTERS OUTSKIRTS: ??? WALKER+12 WELL BEHAVED ? (A2204, REIPRICH+09) CLUMPY ? (SIMIONESCU+11) WEAKENING OF ACCRETION SHOCK ? (CAVALIERE+11)

18 OUT TO R VIR IN THE FOSSIL GROUP RXJ1159 HUMPHREY+12

19 OUT TO R VIR IN RXJ1159 HUMPHREY+12

20 OUT TO R VIR IN RXJ1159 HUMPHREY+12

21 OUT TO R VIR IN RXJ1159 HUMPHREY+12

22 OUT TO R VIR IN RXJ1159 HUMPHREY+12

23 IN THE FUTURE... Galactic/ local CXB YOU NEED TO MAXIMIZE GRASP/BKG (ETTORI & MOLENDI 11) E-ROSITA … MAJOR STEP FORWARD WITH WFXT

24 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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