x-ray groups from the core to the outskirts with chandra, xmm and suzaku fabio gastaldello...
TRANSCRIPT
![Page 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,](https://reader036.vdocuments.site/reader036/viewer/2022070416/56649c885503460f94940217/html5/thumbnails/1.jpg)
X-RAY GROUPS FROM THE X-RAY GROUPS FROM THE CORE TO THE OUTSKIRTS WITH CORE TO THE OUTSKIRTS WITH CHANDRA, XMM AND SUZAKUCHANDRA, 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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OUTLINEOUTLINE
• SLOSHING COLD FRONTS IN GROUPS AND THEIR PERTURBING GALAXIES
• OUT TO THE VIRIAL RADIUS IN RXJ1159
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SLOSHING CFs IN NGC 5044SLOSHING CFs IN NGC 5044
Gastaldello+09
z=0.009 kT=1.2 keV
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SLOSHING CFs IN IC 1860SLOSHING CFs IN IC 1860
FG et al. in prep
z=0.022 kT=1.4 keV
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SLOSHING CFs IN IC 1860SLOSHING CFs IN IC 1860
FG et al. in prep
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SLOSHING CFs IN IC 1860SLOSHING CFs IN IC 1860
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COMPARISON W/ SIMULATIONSCOMPARISON W/ SIMULATIONS
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SLOSHING CFs IN IC 1860SLOSHING CFs IN IC 1860
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SLOSHING CFs IN IC 1860SLOSHING CFs IN IC 1860
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 ...GOING BACK TO NGC 5044 ...
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GOING BACK TO NGC 5044 ...GOING BACK TO NGC 5044 ...
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GOING BACK TO NGC 5044 ...GOING BACK TO NGC 5044 ...
cz = 2733 km/s
cz = 1658 km/s
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SLOSHING CFs IN IC 1860SLOSHING CFs IN IC 1860
cz = 6866 km/s
IC 1860 cz = 5966 km/s
IC 1859
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SLOSHING CFs IN NGC 5846SLOSHING CFs IN NGC 5846
Machacek+11
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NGC 5850: HIGH SPEED NGC 5850: HIGH SPEED ENCOUNTER WITH NGC 5846 ?ENCOUNTER WITH NGC 5846 ?
Higdon+98
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NICE TARGETS FOR ASTRO-H !NICE TARGETS FOR ASTRO-H !
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CLUSTERS OUTSKIRTS: ???CLUSTERS OUTSKIRTS: ???
WALKER+12
• WELL BEHAVED ? (A2204, REIPRICH+09)
• CLUMPY ? (SIMIONESCU+11)
• WEAKENING OF ACCRETION SHOCK ? (CAVALIERE+11)
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OUT TO ROUT TO RVIRVIR IN THE FOSSIL IN THE FOSSIL GROUP RXJ1159GROUP RXJ1159
HUMPHREY+12
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OUT TO ROUT TO RVIRVIR IN RXJ1159 IN RXJ1159
HUMPHREY+12
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OUT TO ROUT TO RVIRVIR IN RXJ1159 IN RXJ1159
HUMPHREY+12
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OUT TO ROUT TO RVIRVIR IN RXJ1159 IN RXJ1159
HUMPHREY+12
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OUT TO ROUT TO RVIRVIR IN RXJ1159 IN RXJ1159
HUMPHREY+12
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IN THE FUTURE ...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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SUMMARYSUMMARY
• 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.