New X-ray transient outburst in Terzan 5

Open Access
Authors
Publication date 26-10-2011
Journal The astronomer's telegram
Volume | Issue number 3714
Organisations
  • Faculty of Science (FNWI) - Anton Pannekoek Institute for Astronomy (API)
Abstract We have been monitoring the globular cluster Terzan 5 with weekly RXTE observations. Our observation from 4:57 to 5:28 UT on Oct. 26, 2011 found an RXTE PCA intensity of 0.008(2) Crab, vs. typical quiescent intensity of 0.002(1) Crab (2-16 keV). No indications of pulsations are visible yet, but the countrate is only 43 cts/s/PCU including background. Swift/BAT daily-averaged flux measurements (http://swift.gsfc.nasa.gov/docs/swift/results/transients/weak/EXO1745-248/ ) confirm the flux increase, reaching 0.0058(8) cts/cm^2/s (15-50 keV), vs.
Document type Article
Language English
Published at https://www.astronomerstelegram.org/?read=3714
Other links https://ui.adsabs.harvard.edu/abs/2011ATel.3714....1A/abstract
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New X-ray transient outburst in Terzan 5 (Final published version)
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