Radio Emission from Globular Clusters

Details Radio Emission from Globular Clusters Radio Emission from Globular Clusters

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002chjaa...2..133s&link_type=abstract

Chinese Journal of Astronomy & Astrophysics, Vol. 2, p. 133-145

Astronomy and Astrophysics

Astrophysics

4

Globular Clusters: General, Pulsars: General, Radio Continuum: General

Scientific paper

Radio emission of globular clusters is studied by analyzing the VLA radio survey data of the NVSS and FIRST. We find that 13 clusters have radio sources within their half-mass radii of clusters. Sources detected previously in NGC 7078 and NGC 6440 are identified. Pulsars in NGC 6121, NGC 6440 and NGC 7078 cannot be detected because of the insufficient survey sensitivity and resolution. There may be a pulsar in the core of Terzan 1. The nature of the extended radio source near the core of NGC 6440 remains unclear. In the core of a globular cluster, there may be many neutron stars or an intermediate mass black hole, but this cannot be clarified with the current radio observations.

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