Discovery of kilohertz QPOs in XTE J1701-407

Details Discovery of kilohertz QPOs in XTE J1701-407 Discovery of kilohertz QPOs in XTE J1701-407

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008atel.1635....1s&link_type=abstract

The Astronomer's Telegram, #1635

Astronomy and Astrophysics

Astronomy

2

X-Ray, Request For Observations, Binaries, Neutron Stars, Transients

Scientific paper

We report the discovery with the RXTE PCA of kilohertz quasiperiodic oscillations (kHz QPOs) in the X-ray flux from the recently discovered neutron star transient XTE J1701-407 (Atel 1569, 1616, 1618, 1621,1630). Power spectral analysis of RXTE PCA Observations obtained on 2008-06-16 at 05:53 UTC, show a strong 30 Hz QPO as well as a high frequency kHz QPO centered at 1150 +- 7 Hz. These QPO frequencies are characteristic of the "atoll" class of accreting neutron stars.

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