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The true nature of Swift J0746.3-1608: a possible Intermediate Polar showing accretion state changes
F. Bernardini, D. de Martino, K. Mukai +1
Optical and X-ray observations suggested that the 9.38 h binary, SWIFT J0746.3- 1608 could be a Cataclysmic Variable of the magnetic or nova-like type, or a low mass X-ray binary.…
IGR J14257-6117, a magnetic accreting white dwarf with a very strong X-ray orbital modulation
F. Bernardini, D. de Martino, K. Mukai +1
IGR J14257-6117 is an unclassified source in the hard X-ray catalogues. Optical follow-ups suggest it could be a Cataclysmic Variable of the magnetic type. We present the first hig…
HST spectrum and timing of the ultra-compact X-ray binary candidate 47 Tuc X9
V. Tudor, J. C. A. Miller-Jones, C. Knigge +17
To confirm the nature of the donor star in the ultra-compact X-ray binary candidate 47 Tuc X9, we obtained optical spectra (3,00010,000 Å) with the Hubble Space Telescope / Spac…