Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...224l.107g&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor, vol. 224, Sept. 15, 1978, p. L107-L111.
Astronomy and Astrophysics
Astronomy
26
Astronomical Models, Astronomical Photometry, Black Holes (Astronomy), Globular Clusters, X Ray Sources, Bursts, H Alpha Line, Interstellar Extinction, Magellanic Clouds, Red Giant Stars, Ubv Spectra, Uhuru Satellite
Scientific paper
Both the variable X-ray source 4U 0026-73 and the X-ray burst source XB 1724-31 (possibly the same as 4U 1722-30) may be identified with, respectively, the globular clusters Kron 3 and Terzan 2. Both of these clusters were 'rediscovered' with observations at CTIO. If confirmed, these identifications increase the number of X-ray globulars to at least nine, of which at least five or six are bursters. The Kron 3 identification would be the first Magellanic Cloud-type globular-cluster X-ray source. The Terzan 2 identification may imply that the globular cluster is being disrupted, perhaps due to the combined effects of tidal stripping and a central black hole.
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