SUMMARY OF SEQUENCE NUMBER 800077
SUMMARY OF SEQUENCE NUMBER 800077
Title: A521, A CLUSTER FORMING AT THE CROSSING OF TWO FILAMENTS?
Observer: Arnaud
Subject Category: Clusters of Galaxies
Seq: 800077 ObsId: 00901
Long-term Plan bin: no LTS bin
ABSTRACT
We propose to observe the cluster A521 (z=0.247) with AXAF/ACIS-I. Our analysis of our so far obtained optical and X-ray data revealed extremely interesting and unique morphological features. They indicate that this cluster is in a highly unrelaxed state and most likely in formation at the crossing of two filaments. Our aim is to determine the thermal structure of this peculiar cluster, in conjonction with high resolution study of the gas distribution. These informations, combined with available optical data, are essential to understand the dynamical state of this cluster and its formation history. The required data quality in X-rays for this kind of investigation can at present only be provide by AXAF.
TARGET SUMMARY
| TARGET NAME |
RA | DEC |
TIME |
SI |
GRAT |
TYPE |
TC |
ROLL |
PRE |
PHASE |
MULTI |
PRI |
| A521 |
73.554167 | -10.268889 |
40.00000 |
ACIS-I |
NONE |
GO |
no |
yes |
no |
no |
no |
5 |
IMAGES
(NOTE: RASS images currently only available for targets LTS scheduled on or after Apr-09-2000)
PARAMETERS
Obscat Parameters
