NGC 1521 is an isolated elliptical galaxy recently discovered in an XMM-AO6pilot survey to search for optimal targets for X-ray studies of dark matter onthe galaxy scale. We request a deep (110 ks) follow-up observation to map itsdark matter profile in detail out to a radius of virgul140 kpc (virgul0.3 r_vir),extending out farther in the halo than achieved to date using X-rays on thegalaxy scale. We will constrain the concentration and virial mass to within +/-15% (90% conf.) and compare to the predictions from cosmological simulations,and obtain an independent measurement of the stellar M/L. This observation ofNGC 1521 would be a key addition to the handful of elliptical galaxies whichcurrently possess interesting X-ray constraints on their dark matter properties.
Publications
The cosmological analysis of X-ray cluster surveys - II. Application of the CR-HR method to the XMM archive |Clerc, N., Sadibekova, T., et al. | MNRAS | 423-3561 | 2012 | 2012MNRAS.423.3561C | http://ui.adsabs.harvard.edu/#abs/2012MNRAS.423.3561C
The ElIXr Galaxy Survey. II. Baryons and Dark Matter in an Isolated Elliptical Galaxy |Humphrey, Philip J., Buote, David A., et al. | ApJ | 755-166 | 2012 | 2012ApJ...755..166H | http://ui.adsabs.harvard.edu/#abs/2012ApJ...755..166H
An XMM-Newton Survey of the Soft X-Ray Background. II. An All-Sky Catalog of Diffuse O VII and O VIII Emission Intensities |Henley, David B., Shelton, Robin L., | ApJS | 202-14 | 2012 | 2012ApJS..202...14H | http://ui.adsabs.harvard.edu/#abs/2012ApJS..202...14H
SPIDERS: the spectroscopic follow-up of X-ray selected clusters of galaxies in SDSS-IV |Clerc, N., Merloni, A., et al. | MNRAS | 463-4490 | 2016 | 2016MNRAS.463.4490C | http://ui.adsabs.harvard.edu/#abs/2016MNRAS.463.4490C
X-ray properties of the X-CLASS-redMaPPer galaxy cluster sample: the luminosity-temperature relation |Molham, Mona, Clerc, Nicolas, et al. | MNRAS | 494-161 | 2020 | 2020MNRAS.494..161M | http://ui.adsabs.harvard.edu/#abs/2020MNRAS.494..161M
Multiwavelength classification of X-ray selected galaxy cluster candidates using convolutional neural networks |Kosiba, Matej, Lieu, Maggie, et al. | MNRAS | 496-4141 | 2020 | 2020MNRAS.496.4141K | http://ui.adsabs.harvard.edu/#abs/2020MNRAS.496.4141K
SPIDERS: overview of the X-ray galaxy cluster follow-up and the final spectroscopic data release |Clerc, N., Kirkpatrick, C. C., et al. | MNRAS | 497-3976 | 2020 | 2020MNRAS.497.3976C | http://ui.adsabs.harvard.edu/#abs/2020MNRAS.497.3976C
X-ray shapes of elliptical galaxies and implications for self-interacting dark matter |McDaniel, A., Jeltema, T., | JCAP | 5-20 | 2021 | 2021JCAP...05..020M | http://ui.adsabs.harvard.edu/#abs/2021JCAP...05..020M
The Solar Cycle Temporal Variation of the Solar Wind Charge Exchange X-Ray Lines |Qu, Zhijie, Koutroumpa, Dimitra, et al. | ApJ | 930-21 | 2022 | 2022ApJ...930...21Q | http://ui.adsabs.harvard.edu/#abs/2022ApJ...930...21Q
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
2009-02-07T14:53:25Z/2009-02-09T04:07:43Z
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, Dr David Buote, 2010, 'The Dark Matter Profile of the Isolated Elliptical Galaxy NGC 1521', 17.56_20190403_1200, European Space Agency, https://doi.org/10.5270/esa-o495wrx
