A dataset provided by the European Space Agency

Name 067456
Title Challenging the merger-sloshing cold front paradigm with an observation of A2142


DOI https://doi.org/10.5270/esa-5uvgpya
Author Dr Mariachiara Rossetti
Description A2142 is the first cluster in which cold fronts were observed. Two striking surface brightness discontinuities are visible even to an untrained eye in Chandra images and the pressure profiles are almost continuous across them, providing textbook examples of cold fronts. However, A2142 does not fit within the now dominant scenario, that describes cold fronts either as the edges of merging subclusters or as the cool cores ..sloshing. in the potential well of their host cluster. This ambiguity may be due to an incomplete picture of the dynamical state of A2142 or alternatively to the inadequacy of the current scenario of cold front formation. We propose a 50 ks XMM-Newton observation to characterize the dynamical state of A2142 well enough to resolve this issue.
Publication No observations found associated with the current proposal
Instrument EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage 2011-07-13T02:36:22Z/2011-07-13T19:07:02Z
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 2012-08-02T00:00:00Z
Publisher And Registrant European Space Agency
Credit Guidelines European Space Agency, 2012-08-02T00:00:00Z, 067456, 17.56_20190403_1200. https://doi.org/10.5270/esa-5uvgpya