Metal transport by cold fronts in M87

Aurora Simionescu (KIPAC/Stanford)

METALS IN THE ICM

+

=

GAS MOTIONS IN THE ICM

Rebusco et al. 2006 Roediger et al. 2007 Simionescu et al. 2008

Markevitch&Vikhlinin 2007 Simionescu et al. in prepAscasibar&Markevitch 2006

Einstein Fellows Symposium CfA, Oct. 28, 2009 Aurora Simionescu

THE CAPPUCCINO

Forman et al. 2007 Owen et al. 2000 Simionescu et al. 2008

MFe=1.5e6 Msun

Einstein Fellows Symposium CfA, Oct. 28, 2009 Aurora Simionescu

THE WINE

Markevitch&Vikhlinin 2007

Ascasibar&Markevitch 2006 Roediger et al. in prep

Einstein Fellows Symposium CfA, Oct. 28, 2009 Aurora Simionescu

SLOSHING IN M87

courtesy of W. Forman

Einstein Fellows Symposium CfA, Oct. 28, 2009 Aurora Simionescu

SLOSHING AND METAL TRANSPORT

MFe=13.7e6 Msun

MFe=4.5e6 Msun

Simionescu et al. in prep

Einstein Fellows Symposium CfA, Oct. 28, 2009 Aurora Simionescu

METAL ENRICHMENT OF ICM

cD

initial

Leccardi et al. 2009

Einstein Fellows Symposium CfA, Oct. 28, 2009 Aurora Simionescu

METAL ENRICHMENT OF ICM

Mg, O: core collapseproducts

Fe: SN Ia product

Enrichment by BCG at late times: only SN Ia -> not the only contribution to the peak

Enrichment in protocluster phase much more peaked than previously thought

Einstein Fellows Symposium CfA, Oct. 28, 2009 Aurora Simionescu

CONCLUSIONS & ACKNOWLEDGEMENTS

Einstein Fellows Symposium CfA, Oct. 28, 2009 Aurora Simionescu

•Cold fronts are very important means of broadening the metal abundance profile in the ICM

•The enrichment patterns are similar close to and far away from the central cluster galaxy -> most metals produced at early times

THANKS TO

N. Werner, W. Forman, E. Miller, Y. Takei, H. Böhringer,E. Churazov, A. Finoguenov, P. Nulsen, E. Roediger, M. Brüggen, J. de Plaa, J. Kaastra