SIMBAD references

2016MNRAS.459...99Z - Mon. Not. R. Astron. Soc., 459, 99-107 (2016/June-2)

Detection of gamma-ray emission from globular clusters M15, NGC 6397, 5904, 6218 and 6139 with Fermi-LAT.

ZHANG P.F., XIN Y.L., FU L., ZHOU J.N., YAN J.Z., LIU Q.Z. and ZHANG L.

Abstract (from CDS):

In the third Fermi catalogue (3FGL) there are 16 gamma-ray globular clusters. Following an analysis of the recently released Pass 8 data from the Fermi Large Area Telescope (LAT), we report the discovery of significant gamma-ray emission from M15 and NGC 6397, confirm that NGC 5904 is a gamma-ray-emitter and provide evidence of gamma-ray emission from NGC 6218 and 6139. Interestingly, in the globular clusters M15, NGC 6397 and 5904, millisecond pulsars (MSPs) have been found in the radio or X-ray, which strongly support the MSP origin of the gamma-ray emission. Owing to the relatively low luminosity of the gamma-ray emission, however, we do not find any evidence for gamma-ray pulsation or flux variability in these sources.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): globular clusters: individual: M15 - globular clusters: individual: NGC 5904 - globular clusters: individual: NGC 6397 - globular clusters: individual: NGC 6218 - globular clusters: individual: NGC 6139

Simbad objects: 25

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