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An X-ray view of the very faint black hole X-ray transient Swift J1357.2-0933 during its 2011 outburst
M. Armas Padilla, R. Wijnands, D. Altamirano +3
We report on the X-ray spectral (using XMM-Newton data) and timing behavior (using XMM-Newton and Rossi X-ray Timing Explorer [RXTE] data) of the very faint X-ray transient and bla…
XMM-Newton and Swift spectroscopy of the newly discovered very-faint X-ray transient IGR J17494-3030
M. Armas Padilla, R. Wijnands, N. Degenaar
A growing group of low-mass X-ray binaries are found to be accreting at very-faint X-ray luminosities of <1E36 erg/s (2-10 keV). Once such system is the new X-ray transient IGR J17…
The optical counterpart of the bright X-ray transient Swift J1745-26
T. Muñoz-Darias, A. de Ugarte Postigo, D. M. Russell +13
We present a 30-day monitoring campaign of the optical counterpart of the bright X-ray transient Swift J1745-26, starting only 19 minutes after the discovery of the source. We obse…
The X-ray spectral properties of very-faint persistent neutron star X-ray binaries
M. Armas Padilla, N. Degenaar, R. Wijnands
AX J1754.2-2754, 1RXS J171824.2-402934 and 1RXH J173523.7-354013 are three persistent neutron star low-mass X-ray binaries that display a 2--10 keV accretion luminosity Lx of only…