159 citations · 516 across the 15 of their papers we have counts for
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Fast-varying time lags in the Quasi-periodic Oscillation in GRS 1915+105
Tomaso M. Belloni, Mariano Mendez, Federico Garcia +1
The properties of sub-second time variability of the X-ray emission of the black-hole binary GRS 1915+105 are very complex and strictly connected to its patterns of variability obs…
A systematic study of the high-frequency bump in the black-hole low-mass X-ray binary GX 339-4
Yuexin Zhang, Mariano Méndez, Sara E. Motta +8
The high-frequency bump, characterized by a frequency exceeding ~30 Hz, represents a seldom-explored time-variability feature in the power density spectrum (PDS) of black-hole X-ra…
Rethinking the 67 Hz QPO in GRS 1915+105: type-C QPOs at the innermost stable circular orbit
S. E. Motta, T. M. Belloni
Context. The study of Quasi-Periodic Oscillations (QPO) at low and high frequency in the variability of the high-energy emission from black-hole binaries and their physical interpr…
A variable-frequency HFQPO in GRS 1915+105 as observed with Astrosat
Tomaso M. Belloni, Dipankar Bhattacharya, Pietro Caccese +3
From the analysis of more than 92 ks of data obtained with the laxpc instrument on board Astrosat we have detected a clear high-frequency QPO whose frequency varies between 67.4 an…
Study of the X-ray properties of the neutron-star binary 4U 172834 from the soft to hard state
Yanan Wang, Mariano Méndez, Diego Altamirano +7
We studied five XMM-Newton observations of the neutron-star binary 4U 172834 covering the hard, intermediate and soft spectral states. By jointly fitting the spectra with severa…
The reflection spectrum of the low-mass X-ray binary 4U 1636-53
Yanan Wang, Mariano Mendez, Andrea Sanna +2
We present 3-79 keV NuSTAR observations of the neutron star low-mass X-ray binary 4U 1636-53 in the soft, transitional and hard state. The spectra display a broad emission line at…
High-Frequency Quasi-Periodic Oscillations from GRS 1915+105
Tomaso M. Belloni, Diego Altamirano
We report the results of a systematic timing analysis of all archival Rossi X-Ray Timing Explorer (RXTE) observations of the bright black-hole binary GRS 1915+105 in order to detec…
Relations between X-ray timing features and spectral parameters of Galactic black hole X-ray binaries
H. Stiele, T. M. Belloni, E. Kalemci +1
We present a study of correlations between spectral and timing parameters for a sample of black hole X-ray binary candidates. Data are taken from GX 339-4, H 1743-322, and XTE J165…
The aperiodic variability of the Ultraluminous X-ray source in NGC 5408
M. D. Caballero-Garcia, S. E. Motta, T. M. Belloni +1
Ultra-Luminous X-ray sources are accreting black holes that might represent strong evidence of the Intermediate Mass Black Holes (IMBH), proposed to exist by theoretical studies bu…
Discovery of high-frequency quasi-periodic oscillations in the black-hole candidate IGR J17091-3624
Diego Altamirano, Tomaso Belloni
We report the discovery of 8.5 sigma high-frequency quasi-periodic oscillations (HFQPOs) at 66 Hz in the RXTE data of the black hole candidate IGR J17091-3624, a system whose X-ray…
The faint "heartbeats" of IGR J17091-3624: an exceptional black-hole candidate
D. Altamirano, T. Belloni, M. Linares +9
We report on the first 180 days of RXTE observations of the outburst of the black hole candidate IGR J17091-3624. This source exhibits a broad variety of complex light curve patter…
On the outburst evolution of H1743-322: a 2008/2009 comparison
S. Motta, T. Muñoz-Darias, T. Belloni
We present two observational campaigns performed with the RXTE satellite on the black hole transient H 1743-322. The source was observed in outburst on two separate occasions betwe…
A very rare triple-peaked type-I X-ray burst in the low-mass X-ray binary 4U 1636-53
Guobao Zhang, Mariano Mendez, Diego Altamirano +2
We have discovered a triple-peaked X-ray burst from the low-mass X-ray binary (LMXB) 4U 1636-53 with the Rossi X-ray Timing Explorer (RXTE). This is the first triple-peaked burst r…