54 citations · 335 across the 13 of their papers we have counts for
3 papers · 1 filter
Periodic signals from the Circinus region: two new cataclysmic variables and the ultraluminous X-ray source candidate GC X-1
P. Esposito, G. L. Israel, D. Milisavljevic +5
The examination of two 2010 Chandra ACIS exposures of the Circinus galaxy resulted in the discovery of two pulsators: CXO J141430.1-651621 and CXOU J141332.9-651756. We also detect…
Discovery of a 6.4 h black hole binary in NGC 4490
P. Esposito, G. L. Israel, L. Sidoli +3
We report on the discovery with Chandra of a strong modulation (~90% pulsed fraction) at ~6.4 h from the source CXOU J123030.3+413853 in the star-forming, low-metallicity spiral ga…
A disrupted bulgeless satellite galaxy as counterpart of the ultraluminous X-ray source ESO 243-49 HLX-1
M. Mapelli, F. Annibali, L. Zampieri +1
The point-like X-ray source HLX-1, close to the S0 galaxy ESO 243-49, is one the strongest intermediate-mass black hole candidates, but the nature of its counterpart is still puzzl…