446 citations · 1.9k across the 45 of their papers we have counts for
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Exploring the powering source of the TeV X-ray binary LS 5039
J. Moldon, M. Ribo, Josep M. Paredes +2
LS 5039 is one of the four TeV emitting X-ray binaries detected up to now. The powering source of its multi-wavelength emission can be accretion in a microquasar scenario or wind i…
A radio and near-infrared mini-survey of the MGRO J2019+37 complex
J. M. Paredes, J. Marti, C. H. Ishwara-Chandra +9
MGRO J2019+37 is an unidentified source of very high energy gamma-rays originally reported by the MILAGRO collaboration as the brightest TeV source in the Cygnus region. Despite th…
Very-High-Energy Gamma Rays from a Distant Quasar: How Transparent Is the Universe?
MAGIC Collaboration, J. Albert
The atmospheric Cherenkov gamma-ray telescope MAGIC, designed for a low-energy threshold, has detected very-high-energy gamma rays from a giant flare of the distant Quasi-Stellar R…
Very peculiar wind from BD+53 2790, the optical counterpart to 4U 2206+54
P. Blay, M. Ribó, I. Negueruela
BD+53 2790, an O9.5Vp star, is the optical counterpart to the HMXRB 4U 2206+54. This system was classified initially as a BeX, but observational evidence soon stressed the need to…
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…
Observations of microquasars with the MAGIC telescope
J. Rico, M. Rissi, P. Bordas +6
We report on the results from the observations in very high energy band (VHE, E_gamma > 100GeV) of the black hole X-ray binary (BHXB) Cygnus X-1. The observations were performed wi…
Chandra Observations of the Gamma-ray Binary LSI+61303: Extended X-ray Structure?
J. M. Paredes, M. Ribo, V. Bosch-Ramon +4
We present a 50 ks observation of the gamma-ray binary LSI+61303 carried out with the ACIS-I array aboard the Chandra X-ray Observatory. This is the highest resolution X-ray observ…
Exploring the connection between the stellar wind and the non-thermal emission in LS 5039
V. Bosch-Ramon, C. Motch, M. Ribo +5
LS 5039 has been observed with several X-ray instruments so far. The source presents X-ray variability at orbital timescales in flux and photon index. The system harbors an O-type…
Broad-band spectral changes of the microquasars Cygnus X-1 and SWIFT J1753.5-0127
Marion Cadolle Bel, Marc Ribo, Jerome Rodriguez +3
We report high-energy results obtained with INTEGRAL and Rossi-XTE on two microquasars: the persistent high-mass system Cygnus X-1 and the transient low-mass binary SWIFT J1753.5-0…
Multi-wavelength properties of the high-energy bright Seyfert 1 galaxy IGR J18027-1455
J. A. Combi, M. Ribo, J. Marti +1
A new sample of hard X-ray sources in the Galactic Plane is being revealed by the regular observations performed by the INTEGRAL satellite. The full characterization of these sourc…
Orbital X-Ray Variability of the Microquasar LS 5039
V. Bosch-Ramon, J. M. Paredes, M. Ribo +3
The properties of the orbit and the donor star in the high mass X-ray binary microquasar LS 5039 indicate that accretion processes should mainly occur via a radiatively driven wind…
Further evidence for the presence of a neutron star in 4U 2206+54. INTEGRAL and VLA observations
P. Blay, M. Ribo, I. Negueruela +5
The majority of High Mass X-ray Binaries (HMXBs) behave as X-ray pulsars, revealing that they contain a magnetised neutron star. Among the four HMXBs not showing pulsations, and th…
The asymmetric compact jet of GRS 1915+105
M. Ribo, V. Dhawan, I. F. Mirabel
We present multiepoch VLBA observations of the compact jet of GRS 1915+105 conducted at 15.0 and 8.4 GHz during a {\it plateau} state of the source in 2003 March-April. These obser…
The gamma-ray emitting microquasar LSI+61303
M. Massi, M. Ribo', J. M. Paredes +3
LS I +61 303 is one of the most studied X-ray binary systems because of its two peculiarities: On the one hand being the probable counterpart of the variable gamma ray source 2CG 1…
Optical polarimetric observations of the microquasar LS 5039
J. A. Combi, S. A. Cellone, J. Marti +3
We present the first optical polarimetric observations of the runaway microquasar LS 5039. Our results reveal the presence of a large amount (~5%) of polarized emission towards thi…
Towards a population of HMXB/NS microquasars as counterparts of low-latitude unidentified EGRET sources
M. Ribo, J. A. Combi, I. F. Mirabel
The discovery of the microquasar LS 5039 well within the 95% conficence contour of the Unidentified EGRET Source (UES) 3EG J1824-1514 was a major step towards the possible associat…
Multi-wavelength INTEGRAL NEtwork (MINE) observations of the microquasar GRS 1915+105
Yael Fuchs, J. Rodriguez, S. E. Shaw +9
We present the international collaboration MINE (Multi-lambda Integral NEtwork) aimed at conducting multi-wavelength observations of X-ray binaries and microquasars simultaneously…
Multiresolution approach for period determination on unevenly sampled data
X. Otazu, M. Ribo, J. M. Paredes +2
In this paper we present a multiresolution-based method for period determination that is able to deal with unevenly sampled data. This method allows us to detect superimposed perio…
Optical spectroscopy of microquasar candidates at low galactic latitudes
J. Marti, J. M. Paredes, J. S. Bloom +3
We report optical spectroscopic observations of a sample of 6 low-galactic latitude microquasar candidates selected by cross-identification of X-ray and radio point source catalogs…
EVN and MERLIN observations of microquasar candidates at low galactic latitudes
M. Ribo, E. Ros, J. M. Paredes +2
In an attempt to increase the number of known microquasars, Paredes et al. (2002) have presented a long-term project focused on the search for new objects of this type. They perfor…
A search for microquasar candidates at low galactic latitudes
J. M. Paredes, M. Ribo, J. Marti
Recent studies of relativistic jet sources in the Galaxy, also known as microquasars, have been very useful in trying to understand the accretion/ejection processes that take place…
The dust-enshrouded microquasar candidate AX J1639.0-4642 = IGR J16393-4643
J. A. Combi, M. Ribo, I. F. Mirabel +1
We present a multiwavelength study of the field containing the unidentified X-ray source AX J1639.0-4642, discovered with the ASCA observatory and recently detected with the IBIS t…
Hints for a fast precessing relativistic radio jet in LS I +61 303
M. Massi, M. Ribo, J. M. Paredes +3
Here we discuss two consecutive MERLIN observations of the X-ray binary LS I +61 303. The first observation shows a double-sided jet extending up to about 200 AU on both sides of a…
The MINE collaboration: multi-wavelength observations of microquasars with INTEGRAL, prospects with HESS and ANTARES
Yael Fuchs, J. Rodriguez, S. Chaty +8
We present the international collaboration MINE (Multi-lambda Integral NEtwork) aimed at conducting multi-wavelength observations of X-ray binaries and microquasars simultaneously…