SIMBAD references

2015ApJ...814...82F - Astrophys. J., 814, 82 (2015/November-3)

Searching for keV sterile neutrino dark matter with X-ray microcalorimeter sounding rockets.

FIGUEROA-FELICIANO E., ANDERSON A.J., CASTRO D., GOLDFINGER D.C., RUTHERFORD J., ECKART M.E., KELLEY R.L., KILBOURNE C.A., McCAMMON D., MORGAN K., PORTER F.S., SZYMKOWIAK A.E. (The XQC collaboration)

Abstract (from CDS):

High-resolution X-ray spectrometers onboard suborbital sounding rockets can search for dark matter candidates that produce X-ray lines, such as decaying keV-scale sterile neutrinos. Even with exposure times and effective areas far smaller than XMM-Newton and Chandra observations, high-resolution, wide field of view observations with sounding rockets have competitive sensitivity to decaying sterile neutrinos. We analyze a subset of the 2011 observation by the X-ray Quantum Calorimeter instrument centered on Galactic coordinates with an effective exposure of 106 s, obtaining a limit on the sterile neutrino mixing angle of at 95% CL for a 7 keV neutrino. Better sensitivity at the level of at 95% CL for a 7 keV neutrino is achievable with future 300-s observations of the galactic center by the Micro-X instrument, providing a definitive test of the sterile neutrino interpretation of the reported 3.56 keV excess from galaxy clusters.

Abstract Copyright:

Journal keyword(s): dark matter - Galaxy: halo - line: identification - neutrinos - techniques: spectroscopic - X-rays: diffuse background

Simbad objects: 21

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2019.12.10-00:21:19

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