In recent months, much excitement has been generated in the scientific communityby the detection of an X-ray line at 3.5keV in galaxy clusters, M31, and theGalactic Center that is consistent with a decay product of light dark matter. Itis very difficult to explain the properties of this line across all of thesetargets consistently with any known atomic transition line or instrumentalanomaly. An important check on the nature of this signal may be obtained byobserving classical dwarf spheroidals, which are strongly dark matter dominatedand contain very little, if any, hot gas. We thus propose a 1.3Msec observationof the Draco dwarf galaxy, which we show to be a sufficient exposure to eitherdetect a dark matter decay line or robustly exclude the dark matter hypothesis.
Publications
Deep XMM observations of Draco rule out at the 99 per cent confidence level a dark matter decay origin for the 3.5 keV line |Jeltema, Tesla, Profumo, Stefano, | MNRAS | 458-3592 | 2016 | 2016MNRAS.458.3592J | http://ui.adsabs.harvard.edu/#abs/2016MNRAS.458.3592J
Searching for decaying dark matter in deep XMM-Newton observation of the Draco dwarf spheroidal |Ruchayskiy, Oleg, Boyarsky, Alexey, et al. | MNRAS | 460-1390 | 2016 | 2016MNRAS.460.1390R | http://ui.adsabs.harvard.edu/#abs/2016MNRAS.460.1390R
Probing the nature of dark matter with deep XMM-Newton observations of the dwarf spheroidal galaxies |Boyarsky, A., Ruchayskiy, O., | AN | 338-287 | 2017 | 2017AN....338..287B | http://ui.adsabs.harvard.edu/#abs/2017AN....338..287B
Scalar field dark matter with spontaneous symmetry breaking and the 3.5 keV line |Cosme, Catarina, Rosa, Joao G., | PhLB | 781-639 | 2018 | 2018PhLB..781..639C | http://ui.adsabs.harvard.edu/#abs/2018PhLB..781..639C
Classification of low-luminosity stellar X-ray sources in the field of the Draco dwarf spheroidal galaxy |Saeedi, Sara, Sasaki, Manami, et al. | A&A | 627-128 | 2019 | 2019A&A...627A.128S | http://ui.adsabs.harvard.edu/#abs/2019A&A...627A.128S
Search for primordial black hole dark matter with x-ray spectroscopic and imaging satellite experiments and prospects for future satellite missions |Malyshev, Denys, Moulin, Emmanuel, | PhRvD | 106-123020 | 2022 | 2022PhRvD.106l3020M | http://ui.adsabs.harvard.edu/#abs/2022PhRvD.106l3020M
The XMM-Newton Line Emission Analysis Program (X-LEAP). I. Emission-line Survey of O VII, O VIII, and Fe L-shell Transitions |Pan, Zeyang, Qu, Zhijie, et al. | ApJS | 271-62 | 2024 | 2024ApJS..271...62P | http://ui.adsabs.harvard.edu/#abs/2024ApJS..271...62P
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
2015-09-11T16:43:09Z/2015-10-20T07:25:09Z
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.
European Space Agency, Prof Alexey Boyarsky, 2015, 'Probing the Dark Matter Nature of the 3.5 keV Line with Draco', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-9ev2byd
