446 citations · 15.9k across the 307 of their papers we have counts for
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Non thermal emission from microquasar/ISM interaction
P. Bordas, V. Bosch-Ramon, J. M. Paredes +1
The interaction of microquasar jets with their environment can produce non-thermal radiation as is the case for extragalactic outflows impacting on their surroundings. We have deve…
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…
Improving the performance of the single-dish Cherenkov telescope MAGIC through the use of signal timing
MAGIC Collaboration
The Cherenkov light flashes produced by Extensive Air Showers are very short in time. A high bandwidth and fast digitizing readout, therefore, can minimize the influence of the bac…
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…
Gamma rays from compact binary system
Josep M. Paredes
Some of the very high energy (VHE) gamma-ray sources detected with the modern generation of Cherenkov telescopes have been identified with previously known X-ray binary systems. Th…
Discovery of a very high energy gamma-ray signal from the 3C 66A/B region
MAGIC Collaboration, E. Aliu
The MAGIC telescope observed the region around the distant blazar 3C 66A for 54.2 h in 2007 August-December. The observations resulted in the discovery of a gamma-ray source at ene…
Upper Limits on the VHE gamma-ray Emission from the Willman 1 Satellite Galaxy with the MAGIC telescope
MAGIC Collaboration, E. Aliu
We present the result of the observation of the ultrafaint dwarf galaxy Willman 1 performed with the 17 m MAGIC telescope during 15.5 hr between March and May 2008. No significant…
Observation of Pulsed Gamma-rays Above 25 GeV from the Crab Pulsar with MAGIC
The MAGIC Collaboration, E. Aliu
One fundamental question about pulsars concerns the mechanism of their pulsed electromagnetic emission. Measuring the high-end region of a pulsar's spectrum would shed light on thi…
First bounds on the high-energy emission from isolated Wolf-Rayet binary systems
MAGIC Collaboration, E. Aliu
High-energy gamma-ray emission is theoretically expected to arise in tight binary star systems (with high mass loss and high velocity winds), although the evidence of this relation…
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…
Non-thermal emission from massive YSOs. Exploring the spectrum at high energies
Anabella T. Araudo, Gustavo E. Romero, Valenti Bosch-Ramon +1
Thermal radio and X-ray emission has been traditionally associated with the formation of stars. However, in recent years, non-thermal radiation from massive star forming regions ha…
Periodic very high energy gamma-ray emission from LS I +61 303 observed with the MAGIC telescope
MAGIC Collaboration, J. Albert
The MAGIC collaboration has recently reported the discovery of gamma-ray emission from the binary system LS I +61 303 in the TeV energy region. Here we present new observational re…
Very High Energy Gamma-Ray Observations of a Strong Flaring Activity in M87 in 2008 February
MAGIC Collaboration, J. Albert
M87 is the only known non blazar radio galaxy to emit very high energy (VHE) gamma-rays. During a monitoring program of M87, a rapid flare in VHE gamma-rays was detected by the MAG…
Gamma-ray emission from massive star forming regions
A. T. Araudo, G. E. Romero, V. Bosch-Ramon +1
Recent radio observations support a picture for star formation where there is accretion of matter onto a central protostar with the ejection of molecular outflows that can affect t…
VHE Gamma-rays from Galactic X-ray Binary Systems
J. M. Paredes
The detection of TeV gamma-rays from LS 5039 and the binary pulsar PSR B1259-63 by HESS, and from LS I +61 303 and the stellar-mass black hole Cygnus X-1 by MAGIC, provides a clear…
Radio detections towards unidentified variable EGRET sources
J. M. Paredes, J. Marti, C. H. Ishwara-Chandra +6
Context. A considerable fraction of the gamma-ray sources discovered with the Energetic Gamma-Ray Experiment Telescope (EGRET) remain unidentified. The EGRET sources that have been…
The changing milliarcsecond radio morphology of the gamma-ray binary LS 5039
M. Ribo, J. M. Paredes, J. Moldon +2
Context. LS 5039 is one of the few TeV emitting X-ray binaries detected so far. The powering source of its multiwavelength emission can be accretion in a microquasar scenario or wi…
MAGIC observations of the unidentified TeV gamma-ray source TeV J2032+4130
J. Albert
We observed the first known very high energy (VHE) gamma-ray emitting unidentified source, TeV J2032+4130, for 94 hours with the MAGIC telescope. The source was detected with a sig…
Simultaneous multiwavelength observations of the blazar 1ES1959+650 at a low TeV flux
G. Tagliaferri, L. Foschini, G. Ghisellini +7
We present the results from a multiwavelength campaign on the TeV blazar 1ES 1959+650, performed in May, 2006. Data from the optical, UV, soft- and hard-X-ray and very high energy…
Faint arc-minute extended radio emission around Cygnus X-3
J. R. Sanchez-Sutil, J. Marti, J. A. Combi +4
Aims. We revisit the vicinity of the microquasar Cygnus X-3 at radio wavelengths. We aim to improve our previous search for possible associated extended radio features/hot spots in…
Multi-wavelength (radio, X-ray and gamma-ray) observations of the gamma-ray binary LS I +61 303
MAGIC Collaboration, J. Albert
We present the results of the first multiwavelength observing campaign on the high-mass X-ray binary LS I +61 303 comprising observations at the TeV regime with the MAGIC telescope…
Upper limit for gamma-ray emission above 140 GeV from the dwarf spheroidal galaxy Draco
MAGIC Collaboration, J. Albert
The nearby dwarf spheroidal galaxy Draco with its high mass to light ratio is one of the most auspicious targets for indirect dark matter searches. Annihilation of hypothetical DM…
Leptonic secondary emission in a hadronic microquasar model
M. Orellana, P. Bordas, V. Bosch-Ramon +2
Context: It has been proposed that the origin of the very high-energy photons emitted from high-mass X-ray binaries with jet-like features, so-called microquasars (MQs), is related…
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…