A dataset provided by the European Space Agency

Name: Is there a minimum Mach number for particle acceleration in cluster shocks
Published: 2016-11-04T23:00:00Z

Proposal ID	076121
Title	Is there a minimum Mach number for particle acceleration in cluster shocks
Download Data Associated to the proposal	https://nxsa.esac.esa.int/nxsa-sl/servlet/data-action-aio?obsno=0761210101
DOI	https://doi.org/10.5270/esa-87duybt
Principal Investigator, PI	Dr Jacco Vink
Abstract	The largest collisionless shocks detected in the Universe are those in clustersof galaxies, which show up in X-rays through their temperature and brighnessjumps, and in radio through synchrotron emission. The latter are called relics,and they indicate that particles are accelerated by the shock. It is not clearwhy some shocks emit radio emission and others do not. According to theory onlyshocks with Mach numbers M>2.24 should be able to accelerate particles. Indeedmost relics seem to have Mach numbers exceeding this limit. But recently Suzakufound evidence that the SE relic in A3667 has Mach number 1.75. This needsfurther study by XMM-Newton with a 100 ks pointing targeting this relic, therebycompleting the XMM map of this important cluster.
Publications	XMM-Newton observations of the Southeastern radio relic in Abell 3667 \|Storm, Emma, Vink, Jacco, et al. \| MNRAS \| 479-553 \| 2018 \| 2018MNRAS.479..553S \| http://ui.adsabs.harvard.edu/#abs/2018MNRAS.479..553S 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 MeerKAT view of the diffuse radio sources in Abell 3667 and their interactions with the thermal plasma \|de Gasperin, F., Rudnick, L., et al. \| A&A \| 659-146 \| 2022 \| 2022A&A...659A.146D \| http://ui.adsabs.harvard.edu/#abs/2022A&A...659A.146D From Active Stars to Black Holes: A Discovery Tool for Galactic X-Ray Sources \|Rodriguez, Antonio C., \| PASP \| 136-054201 \| 2024 \| 2024PASP..136e4201R \| http://ui.adsabs.harvard.edu/#abs/2024PASP..136e4201R 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	2015-10-12T08:26:49Z/2015-10-13T05:31:49Z
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	2016-11-04T23:00:00Z
Keywords	"synchrotron emission", "brighness jumps", "xmm map", "XMM", "thereby completing", "accelerate particles", "largest collisionless shoc", "se relic", "called relics", "minimum mach", "cluster shoc", "XMM-Newton", "particle acceleration", "xmm newton"
Publisher And Registrant	European Space Agency
Credit Guidelines	European Space Agency, Dr Jacco Vink, 2016, 'Is there a minimum Mach number for particle acceleration in cluster shocks', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-87duybt