2015ApJ...810...48R

Query : 2015ApJ...810...48R

2015ApJ...810...48R - Astrophys. J., 810, 48 (2015/September-1)

Dark matter line emission constraints from NuSTAR observations of the Bullet cluster.

RIEMER-SORENSEN S., WIK D., MADEJSKI G., MOLENDI S., GASTALDELLO F., HARRISON F.A., CRAIG W.W., HAILEY C.J., BOGGS S.E., CHRISTENSEN F.E., STERN D., ZHANG W.W. and HORNSTRUP A.

Abstract (from CDS):

Some dark matter candidates, e.g., sterile neutrinos, provide observable signatures in the form of mono-energetic line emission. We present the first search for dark matter line emission in the 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, but improves on the constraints for energies of.

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Journal keyword(s): dark matter - line: identification - X-rays: galaxies: clusters

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 ClG 0657-56 ClG 06 58 26.9 -55 58 21           ~ 1077 1
3 NGC 3227 Sy1 10 23 30.5765149296 +19 51 54.282206700   12.61 11.79     ~ 1807 2
4 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
5 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 4970 3

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