144 citations · 1.4k across the 36 of their papers we have counts for
13 papers · 1 filter
Discovery of slow X-ray pulsations in the high-mass X-ray binary 4U 2206+54
P. Reig, J. M Torrejon, I. Negueruela +3
The source 4U 2206+54 is one of the most enigmatic high-mass X-ray binaries. In spite of intensive searches, X-ray pulsations have not been detected in the time range 0.001-1000 s.…
High variability in Vela X-1: giant flares and off states
Ingo Kreykenbohm, Joern Wilms, Peter Kretschmar +6
We investigate the spectral and temporal behavior of the high mass X-ray binary Vela X-1 during a phase of high activity, with special focus on the observed giant flares and off st…
Supergiant Fast X-ray Transients and Other Wind Accretors
Ignacio Negueruela, Jose Miguel Torrejon, Pablo Reig +2
Supergiant Fast X-ray Transients are obviously related to persistent Supergiant X-ray Binaries. Any convincing explanation for their behaviour must consistently take into account a…
Supergiant Fast X-ray Transients: A common behaviour or a class of objects?
Ignacio Negueruela, David M. Smith, Jose Miguel Torrejon +1
INTEGRAL monitoring of the Galactic Plane is revealing a growing number of recurrent X-ray transients, characterised by short outbursts with very fast rise times (~ tens of minutes…
On the X-ray and optical properties of the Be star HD 110432: a very hard-thermal X-ray emitter
Raimundo Lopes de Oliveira, Christian Motch, Myron A. Smith +3
(ABRIDGED) - HD 110432 is the first proposed, and best studied, member of a growing group of Be stars with X-ray properties similar to gamma Cas. These stars exhibit hard-thermal X…
Supergiant Fast X-ray Transients: A new class of high mass X-ray binaries unveiled by INTEGRAL
Ignacio Negueruela, David M. Smith, Pablo Reig +2
INTEGRAL monitoring of the Galactic Plane is revealing a growing number of recurrent X-ray transients, characterised by short outbursts with very fast rise times (~ tens of minutes…