Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999atel...40....1w&link_type=abstract
The Astronomer's Telegram, #40
Astronomy and Astrophysics
Astronomy
2
X-Ray, Gamma Ray, Binaries, Pulsars, Transients
Scientific paper
An outburst is currently being detected from the Be/x-ray pulsar 4U 0115+63. Pulsations from the source were first detected on Feb 22, 1999, at a frequency of 0.27666170(75) Hz, assuming the binary orbit ephemeris in Bildsten, et al.,1997, Ap J. Suppl. 113, 367. The RMS average pulsed flux in the 20-50 keV energy range on Feb 22 and Feb 23 were (0.132 +/- 0.030) keV cmE-2 sE-1 and (0.177 +/- 0.024) keV cmE-2 sE-1, respectively.
Finger Mark H.
Harmon Alan B.
Wilson Robert B.
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