Discovery of 1 Hz quasi-periodic oscillations in an RXTE observation of MAXI J1543-564

Details Discovery of 1 Hz quasi-periodic oscillations in an RXTE observation of MAXI J1543-564 Discovery of 1 Hz quasi-periodic oscillations in an RXTE observation of MAXI J1543-564

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011atel.3334....1a&link_type=abstract

The Astronomer's Telegram, #3334

Astronomy and Astrophysics

Astronomy

1

X-Ray, Binary, Black Hole, Neutron Star, Transient

Scientific paper

We report on an RXTE follow-up observation of the ongoing outburst of the newly discovered transient X-ray source MAXI J1543-564 (ATELs #3330 and #3331). At ~2:08 UT on May 10th, 2011, RXTE observed MAXI J1543-564 for about 800 seconds (only PCU2 was active). The 2-60 keV power spectrum of this observation exhibits only a single ~10 sigma quasi-periodic oscillation at a frequency of 1.05+-0.02 Hz. Its FWHM and fractional rms amplitude are 0.5+-0.1 Hz and 22+-1%, respectively.

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