Unusual Strong Hard Flare or Burst in 1A 1246-588

Details Unusual Strong Hard Flare or Burst in 1A 1246-588 Unusual Strong Hard Flare or Burst in 1A 1246-588

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006atel..830....1l&link_type=abstract

The Astronomer's Telegram, #830

Astronomy and Astrophysics

Astronomy

3

X-Ray, Binaries, Neutron Stars

Scientific paper

Observations with the RXTE All-Sky Monitor revealed a fast flare or unusual burst in the X-ray source 1A 1246-588 (RA 192.414, Dec -59.088; J2000) in four consecutive dwells on 2006 May 26. Each dwell was 90 s long with a 6 s interval between dwells to rotate the camera assembly. The X-ray flare began at 2006 May 26 18:57:34 (UTC; MJD 53881.78998) and lasted at least 340 s. The average source strength in each of the four dwells was 103 +- 4, 144 +- 4, 73 +- 3, and 39 +- 2 ASM counts/s in the 1.5-12 keV band (corresponding to 1.37 +- 0.05, 1.91 +- 0.06, 0.97 +- 0.03, and 0.52 +- 0.02 Crab).

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