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

Bibcode
2011ATel.3334....1A
Altamirano, D.; Kalamkar, M.; Yang, Y.; Degenaar, N.; Wijnands, R.; Casella, P.; Linares, M.; Rea, N.; Watts, A.; Patruno, A.; Armas-Padilla, M.; Cavecchi, Y.; van der Klis, M.; Kaur, R.
Bibliographical reference

The Astronomer's Telegram, #3334

Advertised on:
5
2011
Number of authors
14
IAC number of authors
0
Citations
2
Refereed citations
2
Description
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.
Type
Non-refereed

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