SUMMARY OF SEQUENCE NUMBER 800067

### SUMMARY OF SEQUENCE NUMBER 800067

#### ABSTRACT

We propose to obtain a high spatial resolution temperature map of the core of the cooling flow'' cluster Abell 2029 to compare with detailed N-body+Hydro simulations on the same scale. Various pieces of evidence (no H$\alpha$ emission, no blue starlight, and the presence of a wide-angle-tail radio source) strongly suggest that the large central X-ray surface brightness excess is NOT due to a cooling with $\dot{\rm{M}} > 100$ M$_{\odot}$ yr$^{-1}$ but rather due to very hot shocked gas in a cluster-cluster merger. In this scenario filaments seen in the ROSAT HRI image are shock fronts which will remain unresolved with the ACIS-I, producing a spectacular AXAF image. The ACIS-I temperature will discern unambiguously if this cluster is a cooling flow or a merger event.

#### TARGET SUMMARY

TARGET NAME RADEC TIME SI GRAT TYPE TC ROLL PRE PHASE MULTI PRI
A2029
227.733750
5.743889
20.00000
ACIS-S
NONE
GO
yes
no
no
no
no
5

#### IMAGES

(NOTE: RASS images currently only available for targets LTS scheduled on or after Apr-09-2000)

### Roll/Visibility

#### PARAMETERS

Obscat Parameters