A dataset provided by the European Space Agency

Name 078233
Title Unveiling a Mysterious Nearby Cool-Core Cluster Lacking a Central BCG
URL

https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0782330101
https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0782330301

DOI https://doi.org/10.5270/esa-lwqtvhy
Author Dr Yuanyuan Su
Description The nearby cluster Abell 1142 is experiencing an off-axis merger between two
subclusters of roughly equal masses. Each subcluster contains a Brightest
Cluster Galaxy (BCG). Abell 1142 appears to harbor a cool core with a metal
abundance gradient declining outward. This cool core is offset from each BCG by
virgul100 kpc. We propose a moderately deep XMM observation of this unique object to
obtain its detailed metal distributions in the central region and probe its
global gas properties out to 0.5 R_500. The requested observation will enable us
to (1) study the enrichment processes of cluster centers (to distinguish between
the BCG and the sub-group infall origins) and (2) understand the role of mergers
in the formation and destruction of cluster cool cores.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2016-06-05T03:56:15Z/2016-06-20T02:48:14Z
Version 17.56_20190403_1200
Mission Description The European Space Agency's (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESA's second cornerstone of the Horizon 2000 Science Programme. It carries 3 high throughput X-ray telescopes with an unprecedented effective area, and an optical monitor, the first flown on a X-ray observatory. The large collecting area and ability to make long uninterrupted exposures provide highly sensitive observations.
Since Earth's atmosphere blocks out all X-rays, only a telescope in space can detect and study celestial X-ray sources. The XMM-Newton mission is helping scientists to solve a number of cosmic mysteries, ranging from the enigmatic black holes to the origins of the Universe itself. Observing time on XMM-Newton is being made available to the scientific community, applying for observational periods on a competitive basis.
Creator Contact https://www.cosmos.esa.int/web/xmm-newton/xmm-newton-helpdesk
Date Published 2017-07-12T22:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, Dr Yuanyuan Su, 2017, 078233, 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-lwqtvhy