Abstract

view Abstract Citations (28) References (8) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Uhuru observations of an X-ray burst at high galactic latitude centered on the X-ray globular cluster NGC 1851. Forman, W. ; Jones, C. Abstract An X-ray burst from a 0.5 x 10 deg region centered near NGC 1851 (MX 0513-40) was detected in observations made with the Uhuru X-ray observatory on September 19, 1972. The source was observed for 15 seconds with a peak rate of 0.5 that of the Crab (2-6 keV) and was not detected above 0.01 of the Crab in observations 4.5 minutes before or after this event. During the observation, the spectrum developed a low-energy cutoff. NGC 1851 is the second globular cluster identified as a source of X-ray bursts, which suggests that all X-ray bursts may originate in globular clusters, some of which may be optically obscured. Publication: The Astrophysical Journal Pub Date: August 1976 DOI: 10.1086/182207 Bibcode: 1976ApJ...207L.177F Keywords: Globular Clusters; Uhuru Satellite; X Ray Sources; Collimators; Energy Spectra; Spaceborne Astronomy; Astronomy full text sources ADS | data products SIMBAD (4)

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