A dataset provided by the European Space Agency

Name: Abell 545 an uncommon merging cluster
Published: 2012-09-29T00:00:00Z

Proposal ID	067467
Title	Abell 545 an uncommon merging cluster
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0674670101
DOI	https://doi.org/10.5270/esa-248m35d
Principal Investigator, PI	Dr Sabrina De Grandi
Abstract	Detailed studies of A545 at radio, optical and X-ray wavelengths point to asystem undergoing a major merger. The unique discovery of an extended stellarhalo resembling that of a cD but with no associated BCG is particularlyintriguing as it suggests this system may be undergoing a critical dynamic phasethat is rarely observed. The available XMM data while hinting to a number ofinteresting features, most notably a shock virgul400 kpc North of the surfacebrightness peak, are of limited use because of the extreme contamination by softprotons. We propose a 50 ks observation of A545 to constrain the phase andgeometry of the merger. The combination of the proposed X-ray observation withthe available optical and radio data will allow us to construct a global picture of the dynamical status of A545.
Publications	Serendipitous UV source catalogues for 10 years of XMM and 5 years of Swift \|Yershov, V. N., \| Ap&SS \| 354-97 \| 2014 \| 2014Ap&SS.354...97Y \| http://ui.adsabs.harvard.edu/#abs/2014Ap&SS.354...97Y The Million Optical - Radio/X-ray Associations (MORX) Catalogue \|Flesch, Eric W., \| PASA \| 33-52 \| 2016 \| 2016PASA...33...52F \| http://ui.adsabs.harvard.edu/#abs/2016PASA...33...52F AGN spectral states from simultaneous UV and X-ray observations by XMM-Newton \|Svoboda, J., Guainazzi, M., \| A&A \| 603-127 \| 2017 \| 2017A&A...603A.127S \| http://ui.adsabs.harvard.edu/#abs/2017A&A...603A.127S On the Connection between Turbulent Motions and Particle Acceleration in Galaxy Clusters \|Eckert, D., Gaspari, M., et al. \| ApJ \| 843-29 \| 2017 \| 2017ApJ...843L..29E \| http://ui.adsabs.harvard.edu/#abs/2017ApJ...843L..29E Classification of 4XMM-DR9 sources by machine learning \|Zhang, Yanxia, Zhao, Yongheng, \| MNRAS \| 503-5263 \| 2021 \| 2021MNRAS.503.5263Z \| http://ui.adsabs.harvard.edu/#abs/2021MNRAS.503.5263Z Robust constraints on feebly interacting particles using XMM-Newton \|Luque, Pedro De la Torre, Balaji, Shyam, \| PhRvD \| 109-L101305 \| 2024 \| 2024PhRvD.109j1305L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j1305L Multimessenger search for electrophilic feebly interacting particles from supernovae \|Luque, Pedro De la Torre, Balaji, Shyam, \| PhRvD \| 109-103028 \| 2024 \| 2024PhRvD.109j3028L \| http://ui.adsabs.harvard.edu/#abs/2024PhRvD.109j3028L Importance of Cosmic-Ray Propagation on Sub-GeV Dark Matter Constraints \|De la Torre Luque, Pedro, Balaji, Shyam, \| ApJ \| 968-46 \| 2024 \| 2024ApJ...968...46D \| http://ui.adsabs.harvard.edu/#abs/2024ApJ...968...46D
Instrument	EMOS1, EMOS2, EPN, OM, RGS1, RGS2
Temporal Coverage	2011-08-30T10:25:18Z/2011-08-31T00:50:36Z
Version	17.56_20190403_1200
Mission Description	The European Space Agencys (ESA) X-ray Multi-Mirror Mission (XMM-Newton) was launched by an Ariane 504 on December 10th 1999. XMM-Newton is ESAs 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 Earths 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	2012-09-29T00:00:00Z
Keywords	"major merger", "xray wavelengths", "surface brightness peak", "dynamic phase", "XMM", "uncommon merging cluster", "radio data", "stellar halo resembling", "soft protons", "dynamical status", "Abell 545", "global picture", "abell 545", "xmm data"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Sabrina De Grandi, 2012, 'Abell 545 an uncommon merging cluster', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-248m35d