Published September 1, 2015
| Submitted + Published
Journal Article
Open
Dark matter line emission constraints from NuSTAR observations of the Bullet Cluster
Abstract
Line emission from dark matter is well motivated for some candidates e.g. sterile neutrinos. We present the first search for dark matter line emission in the 3-80keV range in a pointed observation of the Bullet Cluster with NuSTAR. We do not detect any significant line emission and instead we derive upper limits (95% CL) on the flux, and interpret these constraints in the context of sterile neutrinos and more generic dark matter candidates. NuSTAR does not have the sensitivity to constrain the recently claimed line detection at 3.5keV, but improves on the constraints for energies of 10-25keV.
Additional Information
© 2015 The American Astronomical Society. Received 2015 July 6; accepted 2015 July 28; published 2015 August 27. This research made use of data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by NASA, and it also made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). Facility: NuSTAR - The NuSTAR (Nuclear Spectroscopic Telescope Array) missionAttached Files
Published - Riemer-Sørensen_2015.pdf
Submitted - 1507.01378v1.pdf
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1507.01378v1.pdf
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Additional details
- Eprint ID
- 59136
- Resolver ID
- CaltechAUTHORS:20150801-092701193
- NASA/JPL/Caltech
- Created
-
2015-08-06Created from EPrint's datestamp field
- Updated
-
2021-11-10Created from EPrint's last_modified field
- Caltech groups
- NuSTAR, Space Radiation Laboratory