Discovery with the Sigma telescope of hard X-rays from the globular cluster Terzan 2

Details Discovery with the Sigma telescope of hard X-rays from the globular cluster Terzan 2 Discovery with the Sigma telescope of hard X-rays from the globular cluster Terzan 2

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...379l..21b&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 379, Sept. 20, 1991, p. L21-L24.

Astronomy and Astrophysics

Astronomy

61

Globular Clusters, X Ray Binaries, Black Holes (Astronomy), Emission Spectra, Neutron Stars, Telescopes

Scientific paper

During the survey of the Galactic center performed with the Sigma hard X-ray/soft gamma-ray telescope, a new source has been discovered in the 35-200 keV energy range. The location of the source is consistent with the position of the globular cluster Terzan 2. It is suggested that the hard X-rays emission originates in X1724-308 (4U 1724-30), a source of X-ray bursts located in the globular cluster. Under this assumption, it would be the first detection of a low-mass X-ray binary in this energy range.

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